# This file is part of Autoconf. -*- Autoconf -*- # Parameterized macros. # Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001 # Free Software Foundation, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. # # As a special exception, the Free Software Foundation gives unlimited # permission to copy, distribute and modify the configure scripts that # are the output of Autoconf. You need not follow the terms of the GNU # General Public License when using or distributing such scripts, even # though portions of the text of Autoconf appear in them. The GNU # General Public License (GPL) does govern all other use of the material # that constitutes the Autoconf program. # # Certain portions of the Autoconf source text are designed to be copied # (in certain cases, depending on the input) into the output of # Autoconf. We call these the "data" portions. The rest of the Autoconf # source text consists of comments plus executable code that decides which # of the data portions to output in any given case. We call these # comments and executable code the "non-data" portions. Autoconf never # copies any of the non-data portions into its output. # # This special exception to the GPL applies to versions of Autoconf # released by the Free Software Foundation. When you make and # distribute a modified version of Autoconf, you may extend this special # exception to the GPL to apply to your modified version as well, *unless* # your modified version has the potential to copy into its output some # of the text that was the non-data portion of the version that you started # with. (In other words, unless your change moves or copies text from # the non-data portions to the data portions.) If your modification has # such potential, you must delete any notice of this special exception # to the GPL from your modified version. # # Written by David MacKenzie, with help from # Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, # Roland McGrath, Noah Friedman, david d zuhn, and many others. ## ---------------- ## ## The diversions. ## ## ---------------- ## # We heavily use m4's diversions both for the initializations and for # required macros (see AC_REQUIRE), because in both cases we have to # issue high in `configure' something which is discovered late. # # KILL is only used to suppress output. # # The layers of `configure'. We let m4 undivert them by itself, when # it reaches the end of `configure.ac'. # # - BINSH # AC_REQUIRE'd #! /bin/sh line # - REVISION # Sent by AC_REVISION # - NOTICE # copyright notice(s) # - DEFAULTS # early initializations (defaults) # - PARSE_ARGS # initialization code, option handling loop. # # - HELP_BEGIN # Handling `configure --help'. # - HELP_CANON # Help msg for AC_CANONICAL_* # - HELP_ENABLE # Help msg from AC_ARG_ENABLE. # - HELP_WITH # Help msg from AC_ARG_WITH. # - HELP_VAR # Help msg from AC_ARG_VAR. # - HELP_VAR_END # A small paragraph on the use of the variables. # - HELP_END # Tail of the handling of --help. # # - VERSION_BEGIN # Copyright notice for --version. # - VERSION_END # Tail of the handling of --version. # # - INIT_PREPARE # Tail of initialization code. # # - BODY # the tests and output code # # _m4_divert(DIVERSION-NAME) # -------------------------- # Convert a diversion name into its number. Otherwise, return # DIVERSION-NAME which is supposed to be an actual diversion number. # Of course it would be nicer to use m4_case here, instead of zillions # of little macros, but it then takes twice longer to run `autoconf'! m4_define([_m4_divert(BINSH)], 0) m4_define([_m4_divert(REVISION)], 1) m4_define([_m4_divert(NOTICE)], 2) m4_define([_m4_divert(DEFAULTS)], 3) m4_define([_m4_divert(PARSE_ARGS)], 4) m4_define([_m4_divert(HELP_BEGIN)], 10) m4_define([_m4_divert(HELP_CANON)], 11) m4_define([_m4_divert(HELP_ENABLE)], 12) m4_define([_m4_divert(HELP_WITH)], 13) m4_define([_m4_divert(HELP_VAR)], 14) m4_define([_m4_divert(HELP_VAR_END)], 15) m4_define([_m4_divert(HELP_END)], 16) m4_define([_m4_divert(VERSION_BEGIN)], 20) m4_define([_m4_divert(VERSION_END)], 21) m4_define([_m4_divert(INIT_PREPARE)], 30) m4_define([_m4_divert(BODY)], 40) m4_define([_m4_divert(PREPARE)], 100) # AC_DIVERT_PUSH(DIVERSION-NAME) # AC_DIVERT_POP # ------------------------------ m4_copy([m4_divert_push],[AC_DIVERT_PUSH]) m4_copy([m4_divert_pop], [AC_DIVERT_POP]) ## ------------------------------- ## ## Defining macros in autoconf::. ## ## ------------------------------- ## # AC_DEFUN(NAME, EXPANSION) # ------------------------- # Same as `m4_define' but equip the macro with the needed machinery # for `AC_REQUIRE'. # # We don't use this macro to define some frequently called macros that # are not involved in ordering constraints, to save m4 processing. m4_define([AC_DEFUN], [m4_defun([$1], [$2[]AC_PROVIDE([$1])])]) # AC_DEFUN_ONCE(NAME, EXPANSION) # ------------------------------ # As AC_DEFUN, but issues the EXPANSION only once, and warns if used # several times. m4_define([AC_DEFUN_ONCE], [m4_defun_once([$1], [$2[]AC_PROVIDE([$1])])]) # AC_OBSOLETE(THIS-MACRO-NAME, [SUGGESTION]) # ------------------------------------------ m4_define([AC_OBSOLETE], [AC_DIAGNOSE([obsolete], [$1 is obsolete$2])]) ## ----------------------------- ## ## Dependencies between macros. ## ## ----------------------------- ## # AC_BEFORE(THIS-MACRO-NAME, CALLED-MACRO-NAME) # --------------------------------------------- m4_define([AC_BEFORE], [AC_PROVIDE_IFELSE([$2], [AC_DIAGNOSE([syntax], [$2 was called before $1])])]) # AC_REQUIRE(STRING) # ------------------ # If STRING has never been AC_PROVIDE'd, then expand it. A macro must # be AC_DEFUN'd if either it is AC_REQUIRE'd, or it AC_REQUIRE's. m4_copy([m4_require], [AC_REQUIRE]) # AC_PROVIDE(MACRO-NAME) # ---------------------- # Ideally we should just use `m4_provide($1)', but unfortunately many # third party macros know that we use `AC_PROVIDE_$1' and they depend # on it. m4_define([AC_PROVIDE], [m4_define([AC_PROVIDE_$1])m4_provide([$1])]) # AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED) # ----------------------------------------------------------- # If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED. # The purpose of this macro is to provide the user with a means to # check macros which are provided without letting her know how the # information is coded. m4_define([AC_PROVIDE_IFELSE], [m4_ifdef([AC_PROVIDE_$1], [$2], [$3])]) ## --------------------------------- ## ## Defining macros in autoupdate::. ## ## --------------------------------- ## # AU_DEFINE(NAME, GLUE-CODE, [MESSAGE]) # ------------------------------------- # # Declare `autoupdate::NAME' to be `GLUE-CODE', with all the needed # wrapping actions required by `autoupdate'. # We do not define anything in `autoconf::'. m4_define([AU_DEFINE], [AC_DEFUN([$1], [$2])]) # AU_DEFUN(NAME, NEW-CODE, [MESSAGE]) # ----------------------------------- # Declare that the macro NAME is now obsoleted, and should be replaced # by NEW-CODE. Tell the user she should run autoupdate, and include # the additional MESSAGE. # # Also define NAME as a macro which code is NEW-CODE. # # This allows to share the same code for both supporting obsoleted macros, # and to update a configure.ac. # See `acobsolete.m4' for a longer description. m4_define([AU_DEFUN], [AU_DEFINE([$1], [AC_DIAGNOSE([obsolete], [The macro `$1' is obsolete. You should run autoupdate.])dnl $2], [$3])dnl ]) # AU_ALIAS(OLD-NAME, NEW-NAME) # ---------------------------- # The OLD-NAME is no longer used, just use NEW-NAME instead. There is # little difference with using AU_DEFUN but the fact there is little # interest in running the test suite on both OLD-NAME and NEW-NAME. # This macro makes it possible to distinguish such cases. # # Do not use `defn' since then autoupdate would replace an old macro # call with the new macro body instead of the new macro call. m4_define([AU_ALIAS], [AU_DEFUN([$1], [$2($][@)])]) ## ------------------------- ## ## Interface to autoheader. ## ## ------------------------- ## # AH_OUTPUT(KEY, TEXT) # -------------------- # Pass TEXT to autoheader. # This macro is `read' only via `autoconf --trace', it outputs nothing. m4_define([AH_OUTPUT], []) # AH_VERBATIM(KEY, TEMPLATE) # -------------------------- # If KEY is direct (i.e., no indirection such as in KEY=$my_func which # may occur if there is AC_CHECK_FUNCS($my_func)), issue an autoheader # TEMPLATE associated to the KEY. Otherwise, do nothing. TEMPLATE is # output as is, with no formating. m4_define([AH_VERBATIM], [AS_LITERAL_IF([$1], [AH_OUTPUT([$1], AS_ESCAPE([[$2]]))]) ]) # _AH_VERBATIM_OLD(KEY, TEMPLATE) # ------------------------------- # Same as above, but with bugward compatibility. m4_define([_AH_VERBATIM_OLD], [AS_LITERAL_IF([$1], [AH_OUTPUT([$1], _AS_QUOTE([[$2]]))]) ]) # AH_TEMPLATE(KEY, DESCRIPTION) # ----------------------------- # Issue an autoheader template for KEY, i.e., a comment composed of # DESCRIPTION (properly wrapped), and then #undef KEY. m4_define([AH_TEMPLATE], [AH_VERBATIM([$1], m4_text_wrap([$2 */], [ ], [/* ])[ #undef $1])]) # _AH_TEMPLATE_OLD(KEY, DESCRIPTION) # ---------------------------------- # Same as above, but with bugward compatibility. m4_define([_AH_TEMPLATE_OLD], [_AH_VERBATIM_OLD([$1], m4_text_wrap([$2 */], [ ], [/* ])[ #undef $1])]) # AH_TOP(TEXT) # ------------ # Output TEXT at the top of `config.h.in'. m4_define([AH_TOP], [m4_define([_AH_COUNTER], m4_incr(_AH_COUNTER))dnl AH_VERBATIM([0000]_AH_COUNTER, [$1])]) # AH_BOTTOM(TEXT) # --------------- # Output TEXT at the bottom of `config.h.in'. m4_define([AH_BOTTOM], [m4_define([_AH_COUNTER], m4_incr(_AH_COUNTER))dnl AH_VERBATIM([zzzz]_AH_COUNTER, [$1])]) # Initialize. m4_define([_AH_COUNTER], [0]) ## --------------------------------------------------- ## ## Common m4/sh handling of variables (indirections). ## ## --------------------------------------------------- ## # The purpose of this section is to provide a uniform API for # reading/setting sh variables with or without indirection. # Typically, one can write # AC_VAR_SET(var, val) # or # AC_VAR_SET(ac_$var, val) # and expect the right thing to happen. # AC_VAR_SET(VARIABLE, VALUE) # --------------------------- # Set the VALUE of the shell VARIABLE. # If the variable contains indirections (e.g. `ac_cv_func_$ac_func') # perform whenever possible at m4 level, otherwise sh level. m4_define([AC_VAR_SET], [AS_LITERAL_IF([$1], [$1=$2], [eval "$1=$2"])]) # AC_VAR_GET(VARIABLE) # -------------------- # Get the value of the shell VARIABLE. # Evaluates to $VARIABLE if there are no indirection in VARIABLE, # else into the appropriate `eval' sequence. m4_define([AC_VAR_GET], [AS_LITERAL_IF([$1], [$[]$1], [`eval echo '${'m4_patsubst($1, [[\\`]], [\\\&])'}'`])]) # AC_VAR_TEST_SET(VARIABLE) # ------------------------- # Expands into the `test' expression which is true if VARIABLE # is set. Polymorphic. Should be dnl'ed. m4_define([AC_VAR_TEST_SET], [AS_LITERAL_IF([$1], [test "${$1+set}" = set], [eval "test \"\${$1+set}\" = set"])]) # AC_VAR_SET_IFELSE(VARIABLE, IF-TRUE, IF-FALSE) # ---------------------------------------------- # Implement a shell `if-then-else' depending whether VARIABLE is set # or not. Polymorphic. m4_define([AC_VAR_SET_IFELSE], [AS_IF([AC_VAR_TEST_SET([$1])], [$2], [$3])]) # AC_VAR_PUSHDEF and AC_VAR_POPDEF # -------------------------------- # # Sometimes we may have to handle literals (e.g. `stdlib.h'), while at # other moments, the same code may have to get the value from a # variable (e.g., `ac_header'). To have a uniform handling of both # cases, when a new value is about to be processed, declare a local # variable, e.g.: # # AC_VAR_PUSHDEF([header], [ac_cv_header_$1]) # # and then in the body of the macro, use `header' as is. It is of # first importance to use `AC_VAR_*' to access this variable. Don't # quote its name: it must be used right away by m4. # # If the value `$1' was a literal (e.g. `stdlib.h'), then `header' is # in fact the value `ac_cv_header_stdlib_h'. If `$1' was indirect, # then `header's value in m4 is in fact `$ac_header', the shell # variable that holds all of the magic to get the expansion right. # # At the end of the block, free the variable with # # AC_VAR_POPDEF([header]) # AC_VAR_PUSHDEF(VARNAME, VALUE) # ------------------------------ # Define the m4 macro VARNAME to an accessor to the shell variable # named VALUE. VALUE does not need to be a valid shell variable name: # the transliteration is handled here. To be dnl'ed. m4_define([AC_VAR_PUSHDEF], [AS_LITERAL_IF([$2], [m4_pushdef([$1], [AC_TR_SH($2)])], [ac_$1=AC_TR_SH($2) m4_pushdef([$1], [$ac_[$1]])])]) # AC_VAR_POPDEF(VARNAME) # ---------------------- # Free the shell variable accessor VARNAME. To be dnl'ed. m4_define([AC_VAR_POPDEF], [m4_popdef([$1])]) ## ------------------------------------ ## ## Common m4/sh character translation. ## ## ------------------------------------ ## # The point of this section is to provide high level functions # comparable to m4's `translit' primitive, but m4:sh polymorphic. # Transliteration of literal strings should be handled by m4, while # shell variables' content will be translated at runtime (tr or sed). # AC_TR_CPP(EXPRESSION) # --------------------- # Map EXPRESSION to an upper case string which is valid as rhs for a # `#define'. sh/m4 polymorphic. Make sure to update the definition # of `$ac_tr_cpp' if you change this. m4_define([AC_TR_CPP], [AS_LITERAL_IF([$1], [m4_patsubst(m4_translit([[$1]], [*abcdefghijklmnopqrstuvwxyz], [PABCDEFGHIJKLMNOPQRSTUVWXYZ]), [[^A-Z0-9_]], [_])], [`echo "$1" | $ac_tr_cpp`])]) # AC_TR_SH(EXPRESSION) # -------------------- # Transform EXPRESSION into a valid shell variable name. # sh/m4 polymorphic. # Make sure to update the definition of `$ac_tr_sh' if you change this. m4_define([AC_TR_SH], [AS_LITERAL_IF([$1], [m4_patsubst(m4_translit([[$1]], [*+], [pp]), [[^a-zA-Z0-9_]], [_])], [`echo "$1" | $ac_tr_sh`])]) ## ----------------------------- ## ## Implementing Autoconf loops. ## ## ----------------------------- ## # AC_FOREACH(VARIABLE, LIST, EXPRESSION) # -------------------------------------- # # Compute EXPRESSION assigning to VARIABLE each value of the LIST. # LIST is a /bin/sh list, i.e., it has the form ` item_1 item_2 # ... item_n ': white spaces are separators, and leading and trailing # spaces are meaningless. # # This macro is robust to active symbols: # AC_FOREACH([Var], [ active # b act\ # ive ], [-Var-])end # => -active--b--active-end m4_define([AC_FOREACH], [m4_foreach([$1], m4_split(m4_normalize([$2])), [$3])]) ## ----------------------------------- ## ## Helping macros to display strings. ## ## ----------------------------------- ## # AC_HELP_STRING(LHS, RHS, [COLUMN]) # ---------------------------------- # # Format an Autoconf macro's help string so that it looks pretty when # the user executes "configure --help". This macro takes three # arguments, a "left hand side" (LHS), a "right hand side" (RHS), and # the COLUMN which is a string of white spaces which leads to the # the RHS column (default: 26 white spaces). # # The resulting string is suitable for use in other macros that require # a help string (e.g. AC_ARG_WITH). # # Here is the sample string from the Autoconf manual (Node: External # Software) which shows the proper spacing for help strings. # # --with-readline support fancy command line editing # ^ ^ ^ # | | | # | column 2 column 26 # | # column 0 # # A help string is made up of a "left hand side" (LHS) and a "right # hand side" (RHS). In the example above, the LHS is # "--with-readline", while the RHS is "support fancy command line # editing". # # If the LHS extends past column 24, then the LHS is terminated with a # newline so that the RHS is on a line of its own beginning in column # 26. # # Therefore, if the LHS were instead "--with-readline-blah-blah-blah", # then the AC_HELP_STRING macro would expand into: # # # --with-readline-blah-blah-blah # ^ ^ support fancy command line editing # | | ^ # | column 2 | # column 0 column 26 # m4_define([AC_HELP_STRING], [m4_pushdef([AC_Prefix], m4_default([$3], [ ]))dnl m4_pushdef([AC_Prefix_Format], [ %-]m4_eval(m4_len(AC_Prefix) - 3)[s ])dnl [ %-23s ] m4_text_wrap([$2], AC_Prefix, m4_format(AC_Prefix_Format, [$1]))dnl m4_popdef([AC_Prefix_Format])dnl m4_popdef([AC_Prefix])dnl ]) ## ---------------------------------------------- ## ## Information on the package being Autoconf'ed. ## ## ---------------------------------------------- ## # It is suggested that the macros in this section appear before # AC_INIT in `configure.ac'. Nevertheless, this is just stylistic, # and from the implementation point of, AC_INIT *must* be expanded # beforehand: it puts data in diversions which must appear before the # data provided by the macros of this section. # The solution is to require AC_INIT in each of these macros. AC_INIT # has the needed magic so that it can't be expanded twice. # _AC_INIT_PACKAGE(PACKAGE-NAME, VERSION, # [BUG-REPORT], # [TAR-NAME = unGNU'd lower case PACKAGE-NAME]) # -------------------------------------------------------------- m4_define([_AC_INIT_PACKAGE], [m4_define([AC_PACKAGE_NAME], [$1]) m4_define([AC_PACKAGE_TARNAME], m4_tolower(m4_patsubst([[[$1]]], [GNU ]))) m4_define([AC_PACKAGE_VERSION], [$2]) m4_define([AC_PACKAGE_STRING], [$1 $2]) m4_define([AC_PACKAGE_BUGREPORT], [$3]) ]) # AC_COPYRIGHT(TEXT) # ------------------ # Append Copyright information in the top of `configure'. TEXT is # evaluated once, hence TEXT can use macros. Note that we do not # prepend `# ' but `@%:@ ', since m4 does not evaluate the comments. # Had we used `# ', the Copyright sent in the beginning of `configure' # would have not been evaluated. Another solution, a bit fragile, # would have be to use m4_quote to force an evaluation: # # m4_patsubst(m4_quote($1), [^], [# ]) m4_define([AC_COPYRIGHT], [m4_divert_text([NOTICE], [m4_patsubst([ $1], [^], [@%:@ ])])dnl m4_divert_text([VERSION_BEGIN], [ $1])dnl ])# AC_COPYRIGHT # AC_REVISION(REVISION-INFO) # -------------------------- # The second quote in the translit is just to cope with font-lock-mode # which sees the opening of a string. m4_define([AC_REVISION], [m4_divert_text([REVISION], [@%:@ From __file__ m4_translit([$1], [$""]).])dnl ]) ## ---------------------------------------- ## ## Requirements over the Autoconf version. ## ## ---------------------------------------- ## # AU::AC_PREREQ(VERSION) # ---------------------- # Update this `AC_PREREQ' statement to require the current version of # Autoconf. But fail if ever this autoupdate is too old. # # Note that `m4_defn([AC_ACVERSION])' below are expanded before calling # `AU_DEFUN', i.e., it is hard coded. Otherwise it would be quite # complex for autoupdate to import the value of `AC_ACVERSION'. We # could `AU_DEFUN' `AC_ACVERSION', but this would replace all its # occurrences with the current version of Autoconf, which is certainly # not what mean the user. AU_DEFUN([AC_PREREQ], [m4_if(m4_version_compare(]m4_defn([AC_ACVERSION])[, [$1]), -1, [m4_fatal([Autoconf version $1 or higher is required for this script])])dnl [AC_PREREQ(]]m4_defn([AC_ACVERSION])[[)]]) # AC_PREREQ(VERSION) # ------------------ # Complain and exit if the Autoconf version is less than VERSION. m4_define([AC_PREREQ], [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [AC_FATAL([Autoconf version $1 or higher is required for this script])])]) ## ---------------- ## ## Initialization. ## ## ---------------- ## # All the following macros are used by AC_INIT. Ideally, they should # be presented in the order in which they are output. Please, help us # sorting it, or at least, don't augment the entropy. # _AC_INIT_NOTICE # --------------- m4_define([_AC_INIT_NOTICE], [m4_divert_text([NOTICE], [@%:@ Guess values for system-dependent variables and create Makefiles. @%:@ Generated by Autoconf AC_ACVERSION[]dnl m4_ifset([AC_PACKAGE_STRING], [ for AC_PACKAGE_STRING]).]) m4_ifset([AC_PACKAGE_BUGREPORT], [m4_divert_text([NOTICE], [@%:@ @%:@ Report bugs to .])]) ]) # _AC_INIT_COPYRIGHT # ------------------ m4_define([_AC_INIT_COPYRIGHT], [AC_COPYRIGHT( [Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. This configure script is free software; the Free Software Foundation gives unlimited permission to copy, distribute and modify it.])dnl ]) # File Descriptors # ---------------- # Set up the file descriptors used by `configure'. # File descriptor usage: # 0 standard input # 1 file creation # 2 errors and warnings # AS_MESSAGE_LOG_FD compiler messages saved in config.log # AS_MESSAGE_FD checking for... messages and results m4_define([AS_MESSAGE_FD], 6) # That's how they used to be named. AU_ALIAS([AC_FD_CC], [AS_MESSAGE_LOG_FD]) AU_ALIAS([AC_FD_MSG], [AS_MESSAGE_FD]) # _AC_INIT_DEFAULTS # ----------------- # Values which defaults can be set from `configure.ac'. # `/bin/machine' is used in `glibcbug'. The others are used in config.* m4_define([_AC_INIT_DEFAULTS], [m4_divert_push([DEFAULTS])dnl AS_SHELL_SANITIZE # Name of the host. # hostname on some systems (SVR3.2, Linux) returns a bogus exit status, # so uname gets run too. ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q` exec AS_MESSAGE_FD>&1 # # Initializations. # ac_default_prefix=/usr/local cross_compiling=no subdirs= MFLAGS= MAKEFLAGS= AC_SUBST(SHELL, ${CONFIG_SHELL-/bin/sh})dnl # Maximum number of lines to put in a shell here document. # This variable seems obsolete. It should probably be removed, and # only ac_max_sed_lines should be used. : ${ac_max_here_lines=38} # Avoid depending upon Character Ranges. ac_cr_az='abcdefghijklmnopqrstuvwxyz' ac_cr_AZ='ABCDEFGHIJKLMNOPQRSTUVWXYZ' ac_cr_09='0123456789' ac_cr_alnum=$ac_cr_az$ac_cr_AZ$ac_cr_09 # Sed expression to map a string onto a valid sh and CPP variable names. ac_tr_sh="sed y%*+%pp%;s%[[^_$ac_cr_alnum]]%_%g" ac_tr_cpp="sed y%*$ac_cr_az%P$ac_cr_AZ%;s%[[^_$ac_cr_alnum]]%_%g" m4_divert_pop([DEFAULTS])dnl ])# _AC_INIT_DEFAULTS # AC_PREFIX_DEFAULT(PREFIX) # ------------------------- AC_DEFUN([AC_PREFIX_DEFAULT], [m4_divert_text([DEFAULTS], [ac_default_prefix=$1])]) # AC_CONFIG_SRCDIR([UNIQUE-FILE-IN-SOURCE-DIR]) # --------------------------------------------- # UNIQUE-FILE-IN-SOURCE-DIR is a filename unique to this package, # relative to the directory that configure is in, which we can look # for to find out if srcdir is correct. 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This is used by some tests, and let `autoconf' be used to # generate other scripts than `configure'. m4_define([AC_PLAIN_SCRIPT], [AS_INIT # Forbidden tokens and exceptions. m4_pattern_forbid([^_?A[CHUM]_]) m4_pattern_forbid([_AC_]) # Actually reserved by M4sh. m4_pattern_allow([^AS_FLAGS$]) m4_divert_push([BODY])dnl m4_wrap([m4_divert_pop([BODY])[]])dnl ]) # AC_INIT([PACKAGE, VERSION, [BUG-REPORT]) # ---------------------------------------- # Include the user macro files, prepare the diversions, and output the # preamble of the `configure' script. # Note that the order is important: first initialize, then set the # AC_CONFIG_SRCDIR. m4_define([AC_INIT], [AC_PLAIN_SCRIPT m4_ifval([$2], [_AC_INIT_PACKAGE($@)]) m4_divert_text([BINSH], [@%:@! /bin/sh]) _AC_INIT_DEFAULTS _AC_INIT_PARSE_ARGS _AC_INIT_SRCDIR _AC_INIT_HELP _AC_INIT_VERSION _AC_INIT_CONFIG_LOG _AC_INIT_PREPARE dnl _AC_INIT_COPYRIGHT must be called after _AC_INIT_VERSION, since dnl it dumps into a diversion prepared by _AC_INIT_VERSION. _AC_INIT_NOTICE _AC_INIT_COPYRIGHT m4_ifval([$2], , [m4_ifval([$1], [AC_CONFIG_SRCDIR([$1])])])dnl ]) ## ----------------------------- ## ## Selecting optional features. ## ## ----------------------------- ## # AC_ARG_ENABLE(FEATURE, HELP-STRING, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ------------------------------------------------------------------------ AC_DEFUN([AC_ARG_ENABLE], [m4_divert_once([HELP_ENABLE], [[ Optional Features: --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes]]])dnl m4_divert_once([HELP_ENABLE], [$2])dnl # Check whether --enable-$1 or --disable-$1 was given. if test "[${enable_]m4_patsubst([$1], -, _)+set}" = set; then enableval="[$enable_]m4_patsubst([$1], -, _)" $3 m4_ifvaln([$4], [else $4])dnl fi; dnl ])# AC_ARG_ENABLE AU_DEFUN([AC_ENABLE], [AC_ARG_ENABLE([$1], [ --enable-$1], [$2], [$3])]) ## ------------------------------ ## ## Working with optional software ## ## ------------------------------ ## # AC_ARG_WITH(PACKAGE, HELP-STRING, ACTION-IF-TRUE, [ACTION-IF-FALSE]) # -------------------------------------------------------------------- AC_DEFUN([AC_ARG_WITH], [m4_divert_once([HELP_WITH], [[ Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)]]) m4_divert_once([HELP_WITH], [$2])dnl # Check whether --with-$1 or --without-$1 was given. if test "[${with_]m4_patsubst([$1], -, _)+set}" = set; then withval="[$with_]m4_patsubst([$1], -, _)" $3 m4_ifvaln([$4], [else $4])dnl fi; dnl ])# AC_ARG_WITH AU_DEFUN([AC_WITH], [AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])]) ## ----------------------------------------- ## ## Remembering variables for reconfiguring. ## ## ----------------------------------------- ## # _AC_ARG_VAR_PRECIOUS(VARNAME) # ----------------------------- # Declare VARNAME is precious. # # We try to diagnose when precious variables have changed. To do this, # make two early snapshots (after the option processing to take # explicit variables into account) of those variables: one (ac_env_) # which represents the current run, and a second (ac_cv_env_) which, # at the first run, will be saved in the cache. As an exception to # the cache mechanism, its loading will override these variables (non # `ac_cv_env_' cache value are only set when unset). # # In subsequent runs, after having loaded the cache, compare # ac_cv_env_foo against ac_env_foo. See _AC_ARG_VAR_VALIDATE. m4_define([_AC_ARG_VAR_PRECIOUS], [m4_divert_once([PARSE_ARGS], [ac_env_$1_set=${$1+set} ac_env_$1_value=$$1 ac_cv_env_$1_set=${$1+set} ac_cv_env_$1_value=$$1])dnl ]) # _AC_ARG_VAR_VALIDATE # -------------------- m4_define([_AC_ARG_VAR_VALIDATE], [# Check that the precious variables saved in the cache have kept the same # value. ac_suggest_removing_cache=false for ac_var in `(set) 2>&1 | sed -n 's/^ac_env_\([[a-zA-Z_0-9]]*\)_set=.*/\1/p'`; do eval ac_old_set=\$ac_cv_env_${ac_var}_set eval ac_new_set=\$ac_env_${ac_var}_set eval ac_old_val="\$ac_cv_env_${ac_var}_value" eval ac_new_val="\$ac_env_${ac_var}_value" case $ac_old_set,$ac_new_set in set,) AC_MSG_WARN([`$ac_var' was set to `$ac_old_val' in the previous run]) ac_suggest_removing_cache=: ;; ,set) AC_MSG_WARN([`$ac_var' was not set in the previous run]) ac_suggest_removing_cache=: ;; ,);; *) if test "x$ac_old_val" != "x$ac_new_val"; then AC_MSG_WARN([`$ac_var' has changed since the previous run:]) AC_MSG_WARN([ former value: $ac_old_val]) AC_MSG_WARN([ current value: $ac_new_val]) ac_suggest_removing_cache=: fi;; esac done if $ac_suggest_removing_cache; then AC_MSG_WARN([changes in the environment can compromise the build]) AC_MSG_WARN([consider removing $cache_file and starting over]) fi ])# _AC_ARG_VAR_VALIDATE # AC_ARG_VAR(VARNAME, DOCUMENTATION) # ---------------------------------- # Register VARNAME as a precious variable, and document it in # `configure --help' (but only once). AC_DEFUN([AC_ARG_VAR], [m4_divert_once([HELP_VAR], [[ Some influential environment variables:]])dnl m4_divert_once([HELP_VAR_END], [[ Use these variables to override the choices made by `configure' or to help it to find libraries and programs with nonstandard names/locations.]])dnl m4_expand_once([m4_divert_once([HELP_VAR], [AC_HELP_STRING([$1], [$2], [ ])])], [$0($1)])dnl _AC_ARG_VAR_PRECIOUS([$1])dnl AC_SUBST([$1])dnl ])# AC_ARG_VAR ## ---------------------------- ## ## Transforming program names. ## ## ---------------------------- ## # AC_ARG_PROGRAM # -------------- # This macro is expanded only once, to avoid that `foo' ends up being # installed as `ggfoo'. AC_DEFUN_ONCE([AC_ARG_PROGRAM], [dnl Document the options. m4_divert_push([HELP_BEGIN])dnl Program names: --program-prefix=PREFIX prepend PREFIX to installed program names --program-suffix=SUFFIX append SUFFIX to installed program names --program-transform-name=PROGRAM run sed PROGRAM on installed program names m4_divert_pop([HELP_BEGIN])dnl if test "$program_transform_name" = s,x,x,; then program_transform_name= else # Double any \ or $. echo might interpret backslashes. cat <<\EOF >conftest.sed s,\\,\\\\,g; s,\$,$$,g EOF program_transform_name=`echo $program_transform_name | sed -f conftest.sed` rm -f conftest.sed fi test "$program_prefix" != NONE && program_transform_name="s,^,${program_prefix},;$program_transform_name" # Use a double $ so make ignores it. test "$program_suffix" != NONE && program_transform_name="s,\$\$,${program_suffix},;$program_transform_name" # sed with no file args requires a program. test -z "$program_transform_name" && program_transform_name="s,x,x," ])# AC_ARG_PROGRAM ## ------------------------- ## ## Finding auxiliary files. ## ## ------------------------- ## # AC_CONFIG_AUX_DIR(DIR) # ---------------------- # Find install-sh, config.sub, config.guess, and Cygnus configure # in directory DIR. These are auxiliary files used in configuration. # DIR can be either absolute or relative to $srcdir. AC_DEFUN([AC_CONFIG_AUX_DIR], [AC_CONFIG_AUX_DIRS($1 $srcdir/$1)]) # AC_CONFIG_AUX_DIR_DEFAULT # ------------------------- # The default is `$srcdir' or `$srcdir/..' or `$srcdir/../..'. # There's no need to call this macro explicitly; just AC_REQUIRE it. AC_DEFUN([AC_CONFIG_AUX_DIR_DEFAULT], [AC_CONFIG_AUX_DIRS($srcdir $srcdir/.. $srcdir/../..)]) # AC_CONFIG_AUX_DIRS(DIR ...) # --------------------------- # Internal subroutine. # Search for the configuration auxiliary files in directory list $1. # We look only for install-sh, so users of AC_PROG_INSTALL # do not automatically need to distribute the other auxiliary files. AC_DEFUN([AC_CONFIG_AUX_DIRS], [ac_aux_dir= for ac_dir in $1; do if test -f $ac_dir/install-sh; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/install-sh -c" break elif test -f $ac_dir/install.sh; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/install.sh -c" break elif test -f $ac_dir/shtool; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/shtool install -c" break fi done if test -z "$ac_aux_dir"; then AC_MSG_ERROR([cannot find install-sh or install.sh in $1]) fi ac_config_guess="$SHELL $ac_aux_dir/config.guess" ac_config_sub="$SHELL $ac_aux_dir/config.sub" ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure. AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl ])# AC_CONFIG_AUX_DIRS ## ----------------------------------- ## ## Getting the canonical system type. ## ## ----------------------------------- ## # The inputs are: # configure --host=HOST --target=TARGET --build=BUILD # # The rules are: # 1. Build defaults to the current platform, as determined by config.guess. # 2. Host defaults to build. # 3. Target defaults to host. # _AC_CANONICAL_SPLIT(THING) # -------------------------- # Generate the variables THING, THING_{alias cpu vendor os}. m4_define([_AC_CANONICAL_SPLIT], [AC_SUBST([$1], [$ac_cv_$1])dnl dnl FIXME: AC_SUBST([$1_alias], [$ac_cv_$1_alias])dnl AC_SUBST([$1_cpu], [`echo $ac_cv_$1 | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\1/'`])dnl AC_SUBST([$1_vendor], [`echo $ac_cv_$1 | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\2/'`])dnl AC_SUBST([$1_os], [`echo $ac_cv_$1 | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\3/'`])dnl ])# _AC_CANONICAL_SPLIT # AC_CANONICAL_BUILD # ------------------ AC_DEFUN_ONCE([AC_CANONICAL_BUILD], [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl m4_divert_text([HELP_CANON], [[ System types: --build=BUILD configure for building on BUILD [guessed]]])dnl # Make sure we can run config.sub. $ac_config_sub sun4 >/dev/null 2>&1 || AC_MSG_ERROR([cannot run $ac_config_sub]) AC_CACHE_CHECK([build system type], [ac_cv_build], [ac_cv_build_alias=$build_alias test -z "$ac_cv_build_alias" && ac_cv_build_alias=`$ac_config_guess` test -z "$ac_cv_build_alias" && AC_MSG_ERROR([cannot guess build type; you must specify one]) ac_cv_build=`$ac_config_sub $ac_cv_build_alias` || AC_MSG_ERROR([$ac_config_sub $ac_cv_build_alias failed.]) ]) _AC_CANONICAL_SPLIT(build) ])# AC_CANONICAL_BUILD # AC_CANONICAL_HOST # ----------------- AC_DEFUN_ONCE([AC_CANONICAL_HOST], [AC_REQUIRE([AC_CANONICAL_BUILD])dnl m4_divert_text([HELP_CANON], [[ --host=HOST build programs to run on HOST [BUILD]]])dnl AC_CACHE_CHECK([host system type], [ac_cv_host], [ac_cv_host_alias=$host_alias test -z "$ac_cv_host_alias" && ac_cv_host_alias=$ac_cv_build_alias ac_cv_host=`$ac_config_sub $ac_cv_host_alias` || AC_MSG_ERROR([$ac_config_sub $ac_cv_host_alias failed]) ]) _AC_CANONICAL_SPLIT([host]) ])# AC_CANONICAL_HOST # AC_CANONICAL_TARGET # ------------------- AC_DEFUN_ONCE([AC_CANONICAL_TARGET], [AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_BEFORE([$0], [AC_ARG_PROGRAM])dnl m4_divert_text([HELP_CANON], [[ --target=TARGET configure for building compilers for TARGET [HOST]]])dnl AC_CACHE_CHECK([target system type], [ac_cv_target], [dnl Set target_alias. ac_cv_target_alias=$target_alias test "x$ac_cv_target_alias" = "x" && ac_cv_target_alias=$ac_cv_host_alias ac_cv_target=`$ac_config_sub $ac_cv_target_alias` || AC_MSG_ERROR([$ac_config_sub $ac_cv_target_alias failed]) ]) _AC_CANONICAL_SPLIT([target]) # The aliases save the names the user supplied, while $host etc. # will get canonicalized. test -n "$target_alias" && test "$program_prefix$program_suffix$program_transform_name" = \ NONENONEs,x,x, && program_prefix=${target_alias}-[]dnl ])# AC_CANONICAL_TARGET AU_ALIAS([AC_CANONICAL_SYSTEM], [AC_CANONICAL_TARGET]) # AU::AC_VALIDATE_CACHED_SYSTEM_TUPLE([CMD]) # ------------------------------------------ # If the cache file is inconsistent with the current host, # target and build system types, execute CMD or print a default # error message. Now handled via _AC_ARG_VAR_PRECIOUS. AU_DEFUN([AC_VALIDATE_CACHED_SYSTEM_TUPLE], []) ## ---------------------- ## ## Caching test results. ## ## ---------------------- ## # AC_SITE_LOAD # ------------ # Look for site or system specific initialization scripts. m4_define([AC_SITE_LOAD], [# Prefer explicitly selected file to automatically selected ones. if test -z "$CONFIG_SITE"; then if test "x$prefix" != xNONE; then CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site" else CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site" fi fi for ac_site_file in $CONFIG_SITE; do if test -r "$ac_site_file"; then AC_MSG_NOTICE([loading site script $ac_site_file]) cat "$ac_site_file" >&AS_MESSAGE_LOG_FD . "$ac_site_file" fi done ]) # AC_CACHE_LOAD # ------------- m4_define([AC_CACHE_LOAD], [if test -r "$cache_file"; then # Some versions of bash will fail to source /dev/null (special # files actually), so we avoid doing that. if test -f "$cache_file"; then AC_MSG_NOTICE([loading cache $cache_file]) case $cache_file in [[\\/]]* | ?:[[\\/]]* ) . $cache_file;; *) . ./$cache_file;; esac fi else AC_MSG_NOTICE([creating cache $cache_file]) >$cache_file fi ])# AC_CACHE_LOAD # _AC_CACHE_DUMP # -------------- # Dump the cache to stdout. It can be in a pipe (this is a requirement). m4_define([_AC_CACHE_DUMP], [# The following way of writing the cache mishandles newlines in values, # but we know of no workaround that is simple, portable, and efficient. # So, don't put newlines in cache variables' values. # Ultrix sh set writes to stderr and can't be redirected directly, # and sets the high bit in the cache file unless we assign to the vars. { (set) 2>&1 | case `(ac_space=' '; set | grep ac_space) 2>&1` in *ac_space=\ *) # `set' does not quote correctly, so add quotes (double-quote # substitution turns \\\\ into \\, and sed turns \\ into \). sed -n \ ["s/'/'\\\\''/g; s/^\\([_$ac_cr_alnum]*_cv_[_$ac_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"] ;; *) # `set' quotes correctly as required by POSIX, so do not add quotes. sed -n \ ["s/^\\([_$ac_cr_alnum]*_cv_[_$ac_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"] ;; esac; }dnl ])# _AC_CACHE_DUMP # AC_CACHE_SAVE # ------------- # Save the cache. # Allow a site initialization script to override cache values. m4_define([AC_CACHE_SAVE], [cat >confcache <<\_ACEOF # This file is a shell script that caches the results of configure # tests run on this system so they can be shared between configure # scripts and configure runs, see configure's option --config-cache. # It is not useful on other systems. If it contains results you don't # want to keep, you may remove or edit it. # # config.status only pays attention to the cache file if you give it # the --recheck option to rerun configure. # # `ac_cv_env_foo' variables (set or unset) will be overriden when # loading this file, other *unset* `ac_cv_foo' will be assigned the # following values. _ACEOF _AC_CACHE_DUMP() | sed [' t clear : clear s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ t end /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ : end'] >>confcache if cmp -s $cache_file confcache; then :; else if test -w $cache_file; then test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file" cat confcache >$cache_file else echo "not updating unwritable cache $cache_file" fi fi rm -f confcache[]dnl ])# AC_CACHE_SAVE # AC_CACHE_VAL(CACHE-ID, COMMANDS-TO-SET-IT) # ------------------------------------------ # The name of shell var CACHE-ID must contain `_cv_' in order to get saved. # Should be dnl'ed. Try to catch common mistakes. m4_define([AC_CACHE_VAL], [m4_if(m4_regexp([$2], [AC_DEFINE]), [-1], [], [AC_DIAGNOSE(syntax, [$0($1, ...): suspicious presence of an AC_DEFINE in the second argument, ]dnl [where no actions should be taken])])dnl AC_VAR_SET_IFELSE([$1], [echo $ECHO_N "(cached) $ECHO_C" >&AS_MESSAGE_FD], [$2])]) # AC_CACHE_CHECK(MESSAGE, CACHE-ID, COMMANDS) # ------------------------------------------- # Do not call this macro with a dnl right behind. m4_define([AC_CACHE_CHECK], [AC_MSG_CHECKING([$1]) AC_CACHE_VAL([$2], [$3])dnl AC_MSG_RESULT_UNQUOTED([AC_VAR_GET([$2])])]) ## ---------------------- ## ## Defining CPP symbols. ## ## ---------------------- ## # AC_DEFINE_TRACE_LITERAL(LITERAL-CPP-SYMBOL) # ------------------------------------------- # This macro is useless, it is used only with --trace to collect the # list of *literals* CPP values passed to AC_DEFINE/AC_DEFINE_UNQUOTED. m4_define([AC_DEFINE_TRACE_LITERAL]) # AC_DEFINE_TRACE(CPP-SYMBOL) # --------------------------- # This macro is a wrapper around AC_DEFINE_TRACE_LITERAL which filters # out non literal symbols. m4_define([AC_DEFINE_TRACE], [AS_LITERAL_IF([$1], [AC_DEFINE_TRACE_LITERAL([$1])])]) # AC_DEFINE(VARIABLE, [VALUE], [DESCRIPTION]) # ------------------------------------------- # Set VARIABLE to VALUE, verbatim, or 1. Remember the value # and if VARIABLE is affected the same VALUE, do nothing, else # die. The third argument is used by autoheader. m4_define([AC_DEFINE], [AC_DEFINE_TRACE([$1])dnl m4_ifval([$3], [_AH_TEMPLATE_OLD([$1], [$3])])dnl cat >>confdefs.h <<\EOF [@%:@define] $1 m4_if($#, 2, [$2], $#, 3, [$2], 1) EOF ]) # AC_DEFINE_UNQUOTED(VARIABLE, [VALUE], [DESCRIPTION]) # ---------------------------------------------------- # Similar, but perform shell substitutions $ ` \ once on VALUE. m4_define([AC_DEFINE_UNQUOTED], [AC_DEFINE_TRACE([$1])dnl m4_ifval([$3], [_AH_TEMPLATE_OLD([$1], [$3])])dnl cat >>confdefs.h <&m4_default([$2], [AS_MESSAGE_FD])]) # AC_MSG_CHECKING(FEATURE) # ------------------------ m4_define([AC_MSG_CHECKING], [_AS_ECHO([$as_me:__oline__: checking $1], AS_MESSAGE_LOG_FD) _AC_ECHO_N([checking $1... ])[]dnl ]) # AC_MSG_RESULT(RESULT) # --------------------- m4_define([AC_MSG_RESULT], [_AS_ECHO([$as_me:__oline__: result: $1], AS_MESSAGE_LOG_FD) _AS_ECHO([${ECHO_T}$1])[]dnl ]) # AC_MSG_RESULT_UNQUOTED(RESULT) # ------------------------------ # Likewise, but perform $ ` \ shell substitutions. m4_define([AC_MSG_RESULT_UNQUOTED], [_AS_ECHO_UNQUOTED([$as_me:__oline__: result: $1], AS_MESSAGE_LOG_FD) _AS_ECHO_UNQUOTED([${ECHO_T}$1])[]dnl ]) # AC_MSG_WARN(PROBLEM) # AC_MSG_NOTICE(STRING) # AC_MSG_ERROR(ERROR, [EXIT-STATUS = 1]) # -------------------------------------- m4_copy([AS_WARN], [AC_MSG_WARN]) m4_copy([AS_MESSAGE], [AC_MSG_NOTICE]) m4_copy([AS_ERROR], [AC_MSG_ERROR]) # AU::AC_CHECKING(FEATURE) # ------------------------ AU_DEFUN([AC_CHECKING], [AS_MESSAGE([checking $1...])]) # AU::AC_VERBOSE(STRING) # ---------------------- AU_ALIAS([AC_VERBOSE], [AC_MSG_RESULT]) ## ---------------------------- ## ## Compiler-running mechanics. ## ## ---------------------------- ## # _AC_RUN_LOG(COMMAND, LOG-COMMANDS) # ---------------------------------- # Eval COMMAND, save the exit status in ac_status, and log it. AC_DEFUN([_AC_RUN_LOG], [{ ($2) >&AS_MESSAGE_LOG_FD ($1) 2>&AS_MESSAGE_LOG_FD ac_status=$? echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD (exit $ac_status); }]) # _AC_RUN_LOG_STDERR(COMMAND, LOG-COMMANDS) # ----------------------------------------- # Eval COMMAND, save its stderr into conftest.err, save the exit status # in ac_status, and log it. # Note that when tracing, most shells will leave the traces in stderr AC_DEFUN([_AC_RUN_LOG_STDERR], [{ ($2) >&AS_MESSAGE_LOG_FD ($1) 2>conftest.er1 ac_status=$? egrep -v '^ *\+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&AS_MESSAGE_LOG_FD echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD (exit $ac_status); }]) # _AC_EVAL(COMMAND) # ----------------- # Eval COMMAND, save the exit status in ac_status, and log it. AC_DEFUN([_AC_EVAL], [_AC_RUN_LOG([eval $1], [eval echo "$as_me:__oline__: \"$1\""])]) # _AC_EVAL_STDERR(COMMAND) # ------------------------ # Eval COMMAND, save its stderr into conftest.err, save the exit status # in ac_status, and log it. # Note that when tracing, most shells will leave the traces in stderr AC_DEFUN([_AC_EVAL_STDERR], [_AC_RUN_LOG_STDERR([eval $1], [eval echo "$as_me:__oline__: \"$1\""])]) # AC_TRY_EVAL(VARIABLE) # --------------------- # The purpose of this macro is to "configure:123: command line" # written into config.log for every test run. AC_DEFUN([AC_TRY_EVAL], [_AC_EVAL([$$1])]) # AC_TRY_COMMAND(COMMAND) # ----------------------- AC_DEFUN([AC_TRY_COMMAND], [{ ac_try='$1' _AC_EVAL([$ac_try]); }]) # AC_RUN_LOG(COMMAND) # ------------------- AC_DEFUN([AC_RUN_LOG], [_AC_RUN_LOG([$1], [echo "$as_me:__oline__: AS_ESCAPE([$1])"])]) ## ------------------ ## ## Default includes. ## ## ------------------ ## # Always use the same set of default headers for all the generic # macros. It is easier to document, to extend, and to understand than # having specific defaults for each macro. # _AC_INCLUDES_DEFAULT_REQUIREMENTS # --------------------------------- # Required when AC_INCLUDES_DEFAULT uses its default branch. AC_DEFUN([_AC_INCLUDES_DEFAULT_REQUIREMENTS], [m4_divert_text([DEFAULTS], [# Factoring default headers for most tests. dnl If ever you change this variable, please keep autoconf.texi in sync. ac_includes_default="\ #include #include #include #if STDC_HEADERS # include # include #else # if HAVE_STDLIB_H # include # endif #endif #if HAVE_STRING_H # if !STDC_HEADERS && HAVE_MEMORY_H # include # endif # include #else # if HAVE_STRINGS_H # include # endif #endif #if HAVE_INTTYPES_H # include #endif #if HAVE_UNISTD_H # include #endif" ])dnl AC_REQUIRE([AC_HEADER_STDC])dnl AC_CHECK_HEADERS(stdlib.h string.h memory.h strings.h inttypes.h unistd.h) ]) # AC_INCLUDES_DEFAULT([INCLUDES]) # ------------------------------- # If INCLUDES is empty, expand in default includes, otherwise in # INCLUDES. # In most cases INCLUDES is not double quoted as it should, and if # for instance INCLUDES = `#include ' then unless we force # a newline, the hash will swallow the closing paren etc. etc. # The usual failure. # Take no risk: for the newline. AC_DEFUN([AC_INCLUDES_DEFAULT], [m4_ifval([$1], [$1 ], [AC_REQUIRE([_AC_INCLUDES_DEFAULT_REQUIREMENTS])dnl $ac_includes_default])]) ## ----------------------- ## ## Checking for programs. ## ## ----------------------- ## # AC_SHELL_PATH_WALK([PATH = $PATH], BODY) # ---------------------------------------- # Walk through PATH running BODY for each `ac_dir'. # # `$ac_dummy' forces splitting on constant user-supplied paths. # POSIX.2 word splitting is done only on the output of word # expansions, not every word. This closes a longstanding sh security # hole. m4_define([AC_SHELL_PATH_WALK], [ac_save_IFS=$IFS; IFS=$ac_path_separator ac_dummy="m4_default([$1], [$PATH])" for ac_dir in $ac_dummy; do IFS=$ac_save_IFS test -z "$ac_dir" && ac_dir=. $2 done ]) # AC_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR, # [VALUE-IF-FOUND], [VALUE-IF-NOT-FOUND], # [PATH], [REJECT]) # ----------------------------------------------------- AC_DEFUN([AC_CHECK_PROG], [# Extract the first word of "$2", so it can be a program name with args. set dummy $2; ac_word=$[2] AC_MSG_CHECKING([for $ac_word]) AC_CACHE_VAL(ac_cv_prog_$1, [if test -n "$$1"; then ac_cv_prog_$1="$$1" # Let the user override the test. else m4_ifvaln([$6], [ ac_prog_rejected=no])dnl AC_SHELL_PATH_WALK([$5], [AS_EXECUTABLE_P("$ac_dir/$ac_word") || continue m4_ifvaln([$6], [if test "$ac_dir/$ac_word" = "$6"; then ac_prog_rejected=yes continue fi])dnl ac_cv_prog_$1="$3" echo "$as_me:__oline__: found $ac_dir/$ac_word" >&AS_MESSAGE_LOG_FD AC_TRY_COMMAND([$ac_dir/$ac_word --version &2]) break]) m4_ifvaln([$6], [if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_$1 shift if test $[@%:@] != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set $1 to just the basename; use the full file name. shift set dummy "$ac_dir/$ac_word" ${1+"$[@]"} shift ac_cv_prog_$1="$[@]" m4_if([$2], [$4], [ else # Default is a loser. AC_MSG_ERROR([$1=$6 unacceptable, but no other $4 found in dnl m4_default([$5], [\$PATH])]) ])dnl fi fi])dnl dnl If no 4th arg is given, leave the cache variable unset, dnl so AC_CHECK_PROGS will keep looking. m4_ifvaln([$4], [ test -z "$ac_cv_prog_$1" && ac_cv_prog_$1="$4"])dnl fi])dnl $1=$ac_cv_prog_$1 if test -n "$$1"; then AC_MSG_RESULT([$$1]) else AC_MSG_RESULT([no]) fi AC_SUBST($1)dnl ])# AC_CHECK_PROG # AC_CHECK_PROGS(VARIABLE, PROGS-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], # [PATH]) # ------------------------------------------------------------------ AC_DEFUN([AC_CHECK_PROGS], [for ac_prog in $2 do AC_CHECK_PROG([$1], [$ac_prog], [$ac_prog], , [$4]) test -n "$$1" && break done m4_ifvaln([$3], [test -n "$$1" || $1="$3"])]) # AC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], [PATH]) # ----------------------------------------------------------------------- AC_DEFUN([AC_PATH_PROG], [# Extract the first word of "$2", so it can be a program name with args. set dummy $2; ac_word=$[2] AC_MSG_CHECKING([for $ac_word]) AC_CACHE_VAL([ac_cv_path_$1], [case $$1 in [[\\/]]* | ?:[[\\/]]*) ac_cv_path_$1="$$1" # Let the user override the test with a path. ;; *) AC_SHELL_PATH_WALK([$4], [if AS_EXECUTABLE_P("$ac_dir/$ac_word"); then ac_cv_path_$1="$ac_dir/$ac_word" echo "$as_me:__oline__: found $ac_dir/$ac_word" >&AS_MESSAGE_LOG_FD AC_TRY_COMMAND([$ac_dir/$ac_word --version &2]) break fi]) dnl If no 3rd arg is given, leave the cache variable unset, dnl so AC_PATH_PROGS will keep looking. m4_ifvaln([$3], [ test -z "$ac_cv_path_$1" && ac_cv_path_$1="$3"])dnl ;; esac])dnl AC_SUBST([$1], [$ac_cv_path_$1]) if test -n "$$1"; then AC_MSG_RESULT([$$1]) else AC_MSG_RESULT([no]) fi ])# AC_PATH_PROG # AC_PATH_PROGS(VARIABLE, PROGS-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], # [PATH]) # ----------------------------------------------------------------- AC_DEFUN([AC_PATH_PROGS], [for ac_prog in $2 do AC_PATH_PROG([$1], [$ac_prog], , [$4]) test -n "$$1" && break done m4_ifvaln([$3], [test -n "$$1" || $1="$3"])dnl ]) ## -------------------- ## ## Checking for tools. ## ## -------------------- ## # AC_CHECK_TOOL_PREFIX # -------------------- AU_DEFUN([AC_CHECK_TOOL_PREFIX]) # AC_PATH_TOOL(VARIABLE, PROG-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], [PATH]) # ----------------------------------------------------------------------- # (Use different variables $1 and ac_pt_$1 so that cache vars don't conflict.) AC_DEFUN([AC_PATH_TOOL], [if test -n "$ac_tool_prefix"; then AC_PATH_PROG([$1], [${ac_tool_prefix}$2], , [$4]) fi if test -z "$ac_cv_path_$1"; then ac_pt_$1=$$1 AC_PATH_PROG([ac_pt_$1], [$2], [$3], [$4]) $1=$ac_pt_$1 else $1="$ac_cv_path_$1" fi ])# AC_PATH_TOOL # AC_CHECK_TOOL(VARIABLE, PROG-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], [PATH]) # ------------------------------------------------------------------------ # (Use different variables $1 and ac_ct_$1 so that cache vars don't conflict.) AC_DEFUN([AC_CHECK_TOOL], [if test -n "$ac_tool_prefix"; then AC_CHECK_PROG([$1], [${ac_tool_prefix}$2], [${ac_tool_prefix}$2], , [$4]) fi if test -z "$ac_cv_prog_$1"; then ac_ct_$1=$$1 AC_CHECK_PROG([ac_ct_$1], [$2], [$2], [$3], [$4]) $1=$ac_ct_$1 else $1="$ac_cv_prog_$1" fi ])# AC_CHECK_TOOL # AC_CHECK_TOOLS(VARIABLE, PROGS-TO-CHECK-FOR, [VALUE-IF-NOT-FOUND], # [PATH]) # ------------------------------------------------------------------ # Check for each tool in PROGS-TO-CHECK-FOR with the cross prefix. If # none can be found with a cross prefix, then use the first one that # was found without the cross prefix. AC_DEFUN([AC_CHECK_TOOLS], [if test -n "$ac_tool_prefix"; then for ac_prog in $2 do AC_CHECK_PROG([$1], [$ac_tool_prefix$ac_prog], [$ac_tool_prefix$ac_prog],, [$4]) test -n "$$1" && break done fi if test -z "$$1"; then ac_ct_$1=$$1 AC_CHECK_PROGS([ac_ct_$1], [$2], [$3], [$4]) $1=$ac_ct_$1 fi ])# AC_CHECK_TOOLS # AC_PREFIX_PROGRAM(PROGRAM) # -------------------------- # Guess the value for the `prefix' variable by looking for # the argument program along PATH and taking its parent. # Example: if the argument is `gcc' and we find /usr/local/gnu/bin/gcc, # set `prefix' to /usr/local/gnu. # This comes too late to find a site file based on the prefix, # and it might use a cached value for the path. # No big loss, I think, since most configures don't use this macro anyway. AC_DEFUN([AC_PREFIX_PROGRAM], [dnl Get an upper case version of $[1]. m4_pushdef([AC_Prog], m4_toupper([$1]))dnl if test "x$prefix" = xNONE; then dnl We reimplement AC_MSG_CHECKING (mostly) to avoid the ... in the middle. echo $ECHO_N "checking for prefix by $ECHO_C" >&AS_MESSAGE_FD AC_PATH_PROG(m4_quote(AC_Prog), [$1]) if test -n "$ac_cv_path_[]AC_Prog"; then prefix=`AS_DIRNAME(["$ac_cv_path_[]AC_Prog"])` fi fi m4_popdef([AC_Prog])dnl ])# AC_PREFIX_PROGRAM ## ------------------------ ## ## Checking for libraries. ## ## ------------------------ ## # AC_TRY_LINK_FUNC(FUNC, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND) # ------------------------------------------------------------ # Try to link a program that calls FUNC, handling GCC builtins. If # the link succeeds, execute ACTION-IF-FOUND; otherwise, execute # ACTION-IF-NOT-FOUND. AC_DEFUN([AC_TRY_LINK_FUNC], [AC_LINK_IFELSE([AC_LANG_CALL([], [$1])], [$2], [$3])]) # AC_SEARCH_LIBS(FUNCTION, SEARCH-LIBS, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [OTHER-LIBRARIES]) # -------------------------------------------------------- # Search for a library defining FUNC, if it's not already available. AC_DEFUN([AC_SEARCH_LIBS], [AC_CACHE_CHECK([for library containing $1], [ac_cv_search_$1], [ac_func_search_save_LIBS=$LIBS ac_cv_search_$1=no AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="none required"]) test "$ac_cv_search_$1" = no && for ac_lib in $2; do LIBS="-l$ac_lib $5 $ac_func_search_save_LIBS" AC_TRY_LINK_FUNC([$1], [ac_cv_search_$1="-l$ac_lib" break]) done LIBS=$ac_func_search_save_LIBS]) AS_IF([test "$ac_cv_search_$1" != no], [test "$ac_cv_search_$1" = "none required" || LIBS="$ac_cv_search_$1 $LIBS" $3], [$4])dnl ]) # AC_CHECK_LIB(LIBRARY, FUNCTION, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [OTHER-LIBRARIES]) # ------------------------------------------------------ # # Use a cache variable name containing both the library and function name, # because the test really is for library $1 defining function $2, not # just for library $1. Separate tests with the same $1 and different $2s # may have different results. # # FIXME: This macro is extremely suspicious. It DEFINEs unconditionnally, # whatever the FUNCTION, in addition to not being a *S macro. Note # that the cache does depend upon the function we are looking for. # # It is on purpose we used `ac_check_lib_save_LIBS' and not just # `ac_save_LIBS': there are many macros which don't want to see `LIBS' # changed but still want to use AC_CHECK_LIB, so they save `LIBS'. # And ``ac_save_LIBS' is too tempting a name, so let's leave them some # freedom. AC_DEFUN([AC_CHECK_LIB], [m4_ifval([$3], , [AH_CHECK_LIB([$1])])dnl AC_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$2])dnl AC_CACHE_CHECK([for $2 in -l$1], ac_Lib, [ac_check_lib_save_LIBS=$LIBS LIBS="-l$1 $5 $LIBS" AC_TRY_LINK_FUNC([$2], [AC_VAR_SET(ac_Lib, yes)], [AC_VAR_SET(ac_Lib, no)]) LIBS=$ac_check_lib_save_LIBS]) AS_IF([test AC_VAR_GET(ac_Lib) = yes], [m4_default([$3], [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_LIB$1)) LIBS="-l$1 $LIBS" ])], [$4])dnl AC_VAR_POPDEF([ac_Lib])dnl ])# AC_CHECK_LIB # AH_CHECK_LIB(LIBNAME) # --------------------- m4_define([AH_CHECK_LIB], [AH_TEMPLATE(AC_TR_CPP(HAVE_LIB$1), [Define if you have the `]$1[' library (-l]$1[).])]) # AC_HAVE_LIBRARY(LIBRARY, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [OTHER-LIBRARIES]) # --------------------------------------------------------- # # This macro is equivalent to calling `AC_CHECK_LIB' with a FUNCTION # argument of `main'. In addition, LIBRARY can be written as any of # `foo', `-lfoo', or `libfoo.a'. In all of those cases, the compiler # is passed `-lfoo'. However, LIBRARY cannot be a shell variable; # it must be a literal name. AU_DEFUN([AC_HAVE_LIBRARY], [m4_pushdef([AC_Lib_Name], m4_patsubst(m4_patsubst([[$1]], [lib\([^\.]*\)\.a], [\1]), [-l], []))dnl AC_CHECK_LIB(AC_Lib_Name, main, [$2], [$3], [$4])dnl ac_cv_lib_[]AC_Lib_Name()=ac_cv_lib_[]AC_Lib_Name()_main m4_popdef([AC_Lib_Name])dnl ]) ## ------------------------ ## ## Examining declarations. ## ## ------------------------ ## # _AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ---------------------------------------------------------------- # Try to preprocess PROGRAM. # # Run cpp and set ac_cpp_err to "yes" for an error, to # "$ac_(c,cxx)_preproc_warn_flag" if there are warnings or to "" if # neither warnings nor errors have been detected. eval is necessary # to expand ac_cpp. # # This macro can be used during the selection of a preprocessor. AC_DEFUN([_AC_PREPROC_IFELSE], [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl if _AC_EVAL_STDERR([$ac_cpp conftest.$ac_ext]) >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_[]_AC_LANG_ABBREV[]_preproc_warn_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then m4_default([$2], :) else echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD $3 fi rm -f conftest.err m4_ifval([$1], [conftest.$ac_ext])[]dnl ])# _AC_PREPROC_IFELSE # AC_PREPROC_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # --------------------------------------------------------------- # Try to preprocess PROGRAM. Requires that the preprocessor for the # current language was checked for, hence do not use this macro in macros # looking for a preprocessor. AC_DEFUN([AC_PREPROC_IFELSE], [AC_LANG_PREPROC_REQUIRE()dnl _AC_PREPROC_IFELSE($@)]) # AC_TRY_CPP(INCLUDES, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # --------------------------------------------------------- # AC_TRY_CPP is used to check whether particular header files exist. # (But it actually tests whether INCLUDES produces no CPP errors.) # # INCLUDES are not defaulted and are double quoted. AC_DEFUN([AC_TRY_CPP], [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3])]) # AC_EGREP_CPP(PATTERN, PROGRAM, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ------------------------------------------------------ # Because this macro is used by AC_PROG_GCC_TRADITIONAL, which must # come early, it is not included in AC_BEFORE checks. AC_DEFUN([AC_EGREP_CPP], [AC_LANG_PREPROC_REQUIRE()dnl AC_LANG_CONFTEST([AC_LANG_SOURCE([[$2]])]) dnl eval is necessary to expand ac_cpp. dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell. if (eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | dnl Quote $1 to prevent m4 from eating character classes egrep "[$1]" >/dev/null 2>&1; then m4_default([$3], :) m4_ifvaln([$4], [else $4])dnl fi rm -f conftest* ])# AC_EGREP_CPP # AC_EGREP_HEADER(PATTERN, HEADER-FILE, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # --------------------------------------------------------- AC_DEFUN([AC_EGREP_HEADER], [AC_EGREP_CPP([$1], [#include <$2> ], [$3], [$4])]) ## ------------------ ## ## Examining syntax. ## ## ------------------ ## # _AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # --------------------------------------------------------------------- # Try to compile PROGRAM. # This macro can be used during the selection of a compiler. m4_define([_AC_COMPILE_IFELSE], [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl rm -f conftest.$ac_objext AS_IF([AC_TRY_EVAL(ac_compile) && AC_TRY_COMMAND([test -s conftest.$ac_objext])], [$2], [echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD m4_ifvaln([$3],[$3])dnl])dnl rm -f conftest.$ac_objext m4_ifval([$1], [conftest.$ac_ext])[]dnl ])# _AC_COMPILE_IFELSE # AC_COMPILE_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # -------------------------------------------------------------------- # Try to compile PROGRAM. Requires that the compiler for the current # language was checked for, hence do not use this macro in macros looking # for a compiler. AC_DEFUN([AC_COMPILE_IFELSE], [AC_LANG_COMPILER_REQUIRE()dnl _AC_COMPILE_IFELSE($@)]) # AC_TRY_COMPILE(INCLUDES, FUNCTION-BODY, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # -------------------------------------------------------- AC_DEFUN([AC_TRY_COMPILE], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])]) ## --------------------- ## ## Examining libraries. ## ## --------------------- ## # _AC_LINK_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ------------------------------------------------------------------ # Try to link PROGRAM. # This macro can be used during the selection of a compiler. m4_define([_AC_LINK_IFELSE], [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl rm -f conftest.$ac_objext conftest$ac_exeext AS_IF([AC_TRY_EVAL(ac_link) && AC_TRY_COMMAND([test -s conftest$ac_exeext])], [$2], [echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD m4_ifvaln([$3], [$3])dnl])[]dnl rm -f conftest.$ac_objext conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl ])# _AC_LINK_IFELSE # AC_LINK_IFELSE(PROGRAM, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ----------------------------------------------------------------- # Try to link PROGRAM. Requires that the compiler for the current # language was checked for, hence do not use this macro in macros looking # for a compiler. AC_DEFUN([AC_LINK_IFELSE], [AC_LANG_COMPILER_REQUIRE()dnl _AC_LINK_IFELSE($@)]) # AC_TRY_LINK(INCLUDES, FUNCTION-BODY, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ----------------------------------------------------- # Should the INCLUDES be defaulted here? # Contrarily to AC_LINK_IFELSE, this macro double quote its first two args. # FIXME: WARNING: The code to compile was different in the case of # Fortran between AC_TRY_COMPILE and AC_TRY_LINK, though they should # equivalent as far as I can tell from the semantics and the docs. In # the former, $[2] is used as is, in the latter, it is `call' ed. # Remove these FIXME: once truth established. AC_DEFUN([AC_TRY_LINK], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[$1]], [[$2]])], [$3], [$4])]) # AC_COMPILE_CHECK(ECHO-TEXT, INCLUDES, FUNCTION-BODY, # ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]) # -------------------------------------------------------- AU_DEFUN([AC_COMPILE_CHECK], [m4_ifvaln([$1], [AC_CHECKING([for $1])])dnl AC_LINK_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])], [$4], [$5]) ]) ## -------------------------------- ## ## Checking for run-time features. ## ## -------------------------------- ## # _AC_RUN_IFELSE(PROGRAM, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) # ------------------------------------------------------------ # Compile, link, and run. # This macro can be used during the selection of a compiler. m4_define([_AC_RUN_IFELSE], [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl rm -f conftest$ac_exeext AS_IF([AC_TRY_EVAL(ac_link) && AC_TRY_COMMAND(./conftest$ac_exeext)], [$2], [echo "$as_me: program exited with status $ac_status" >&AS_MESSAGE_LOG_FD echo "$as_me: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD m4_ifvaln([$3], [$3])dnl])[]dnl rm -f conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl ])# _AC_RUN_IFELSE # AC_RUN_IFELSE(PROGRAM, # [ACTION-IF-TRUE], [ACTION-IF-FALSE], # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR]) # ---------------------------------------------------------- # Compile, link, and run. Requires that the compiler for the current # language was checked for, hence do not use this macro in macros looking # for a compiler. AC_DEFUN([AC_RUN_IFELSE], [AC_LANG_COMPILER_REQUIRE()dnl m4_ifval([$4], [], [AC_DIAGNOSE([cross], [$0 called without default to allow cross compiling])])dnl if test "$cross_compiling" = yes; then m4_default([$4], [AC_MSG_ERROR([cannot run test program while cross compiling])]) else _AC_RUN_IFELSE($@) fi]) # AC_TRY_RUN(PROGRAM, # [ACTION-IF-TRUE], [ACTION-IF-FALSE], # [ACTION-IF-CROSS-COMPILING = RUNTIME-ERROR]) # -------------------------------------------------------- AC_DEFUN([AC_TRY_RUN], [AC_RUN_IFELSE([AC_LANG_SOURCE([[$1]])], [$2], [$3], [$4])]) ## ------------------------------------- ## ## Checking for the existence of files. ## ## ------------------------------------- ## # AC_CHECK_FILE(FILE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ------------------------------------------------------------- # # Check for the existence of FILE. AC_DEFUN([AC_CHECK_FILE], [AC_DIAGNOSE([cross], [cannot check for file existence when cross compiling])dnl AC_VAR_PUSHDEF([ac_File], [ac_cv_file_$1])dnl AC_CACHE_CHECK([for $1], ac_File, [test "$cross_compiling" = yes && AC_MSG_ERROR([cannot check for file existence when cross compiling]) if test -r "$1"; then AC_VAR_SET(ac_File, yes) else AC_VAR_SET(ac_File, no) fi]) AS_IF([test AC_VAR_GET(ac_File) = yes], [$2], [$3])[]dnl AC_VAR_POPDEF([ac_File])dnl ])# AC_CHECK_FILE # AC_CHECK_FILES(FILE..., [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # ----------------------------------------------------------------- AC_DEFUN([AC_CHECK_FILES], [AC_FOREACH([AC_FILE_NAME], [$1], [AC_CHECK_FILE(AC_FILE_NAME, [AC_DEFINE_UNQUOTED(AC_TR_CPP(HAVE_[]AC_FILE_NAME), 1, [Define if you have the file `]AC_File['.]) $2], [$3])])]) ## ------------------------------- ## ## Checking for declared symbols. ## ## ------------------------------- ## # AC_CHECK_DECL(SYMBOL, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES]) # ------------------------------------------------------- # Check if SYMBOL (a variable or a function) is declared. AC_DEFUN([AC_CHECK_DECL], [AC_VAR_PUSHDEF([ac_Symbol], [ac_cv_have_decl_$1])dnl AC_CACHE_CHECK([whether $1 is declared], ac_Symbol, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4])], [#ifndef $1 char *p = (char *) $1; #endif ])], [AC_VAR_SET(ac_Symbol, yes)], [AC_VAR_SET(ac_Symbol, no)])]) AS_IF([test AC_VAR_GET(ac_Symbol) = yes], [$2], [$3])[]dnl AC_VAR_POPDEF([ac_Symbol])dnl ])# AC_CHECK_DECL # AC_CHECK_DECLS(SYMBOLS, # [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], # [INCLUDES]) # -------------------------------------------------------- # Defines HAVE_DECL_SYMBOL to 1 if declared, 0 otherwise. See the # documentation for a detailed explanation of this difference with # other AC_CHECK_*S macros. SYMBOLS is an m4 list. AC_DEFUN([AC_CHECK_DECLS], [m4_foreach([AC_Symbol], [$1], [AC_CHECK_DECL(AC_Symbol, [AC_DEFINE_UNQUOTED(AC_TR_CPP([HAVE_DECL_]AC_Symbol), 1, [Define to 1 if you have the declaration of `]AC_Symbol[', and to 0 if you don't.]) $2], [AC_DEFINE_UNQUOTED(AC_TR_CPP([HAVE_DECL_]AC_Symbol), 0) $3], [$4])]) ])# AC_CHECK_DECLS ## -------------------------------- ## ## Checking for library functions. ## ## -------------------------------- ## # AC_LIBSOURCE(FILENAME) # ---------------------- # Announce we might need the file `FILENAME'. m4_define([AC_LIBSOURCE], []) # AC_LIBSOURCES([FILENAME1, ...]) # ------------------------------- # Announce we might need these files. m4_define([AC_LIBSOURCES], [m4_foreach([_AC_FILENAME], [$1], [AC_LIBSOURCE(_AC_FILENAME)])]) # _AC_LIBOBJ(FILENAME-NOEXT, ACTION-IF-INDIR) # ------------------------------------------- # We need `FILENAME-NOEXT.o', save this into `LIBOBJS'. # We don't use AC_SUBST/2 because it forces an unneeded eol. m4_define([_AC_LIBOBJ], [AS_LITERAL_IF([$1], [AC_LIBSOURCE([$1.c])], [$2])dnl AC_SUBST([LIBOBJS])dnl LIBOBJS="$LIBOBJS $1.$ac_objext"]) # AC_LIBOBJ(FILENAME-NOEXT) # ------------------------- # We need `FILENAME-NOEXT.o', save this into `LIBOBJS'. # We don't use AC_SUBST/2 because it forces an unneeded eol. m4_define([AC_LIBOBJ], [_AC_LIBOBJ([$1], [AC_DIAGNOSE(syntax, [$0($1): you should use literals])])dnl ]) ## ----------------------------------- ## ## Checking compiler characteristics. ## ## ----------------------------------- ## # _AC_COMPUTE_INT_COMPILE(EXPRESSION, VARIABLE, [INCLUDES]) # --------------------------------------------------------- # Compute the integer EXPRESSION and store the result in the VARIABLE. # Works OK if cross compiling. m4_define([_AC_COMPUTE_INT_COMPILE], [# Depending upon the size, compute the lo and hi bounds. AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= 0])], [ac_lo=0 ac_mid=0 while :; do AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])], [ac_hi=$ac_mid; break], [ac_lo=`expr $ac_mid + 1`; ac_mid=`expr 2 '*' $ac_mid + 1`]) done], [ac_hi=-1 ac_mid=-1 while :; do AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) >= $ac_mid])], [ac_lo=$ac_mid; break], [ac_hi=`expr $ac_mid - 1`; ac_mid=`expr 2 '*' $ac_mid`]) done]) # Binary search between lo and hi bounds. while test "x$ac_lo" != "x$ac_hi"; do ac_mid=`expr '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo` AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([$3], [($1) <= $ac_mid])], [ac_hi=$ac_mid], [ac_lo=`expr $ac_mid + 1`]) done $2=$ac_lo[]dnl ])# _AC_COMPUTE_INT_COMPILE # _AC_COMPUTE_INT_RUN(EXPRESSION, VARIABLE, [INCLUDES], [IF-FAILS]) # ----------------------------------------------------------------- # Store the evaluation of the integer EXPRESSION in VARIABLE. m4_define([_AC_COMPUTE_INT_RUN], [AC_RUN_IFELSE([AC_LANG_INT_SAVE([$3], [$1])], [$2=`cat conftest.val`], [$4])]) # _AC_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS) # --------------------------------------------------------- m4_define([_AC_COMPUTE_INT], [if test "$cross_compiling" = yes; then _AC_COMPUTE_INT_COMPILE([$1], [$2], [$3]) else _AC_COMPUTE_INT_RUN([$1], [$2], [$3], [$4]) fi rm -f conftest.val[]dnl ])# _AC_COMPUTE_INT ## ----------------------- ## ## Creating output files. ## ## ----------------------- ## # This section handles about all the preparation aspects for # `config.status': registering the configuration files, the headers, # the links, and the commands `config.status' will run. There is a # little mixture though of things actually handled by `configure', # such as running the `configure' in the sub directories. Minor # detail. # # There are two kinds of commands: # # COMMANDS: # # They are output into `config.status' via a quoted here doc. These # commands are always associated to a tag which the user can use to # tell `config.status' what are the commands she wants to run. # # INIT-CMDS: # # They are output via an *unquoted* here-doc. As a consequence $var # will be output as the value of VAR. This is typically used by # `configure' to give `config,.status' some variables it needs to run # the COMMANDS. At the difference of `COMMANDS', the INIT-CMDS are # always run. # # # Some uniformity exists around here, please respect it! # # A macro named AC_CONFIG_FOOS has three args: the `TAG...' (or # `FILE...' when it applies), the `COMMANDS' and the `INIT-CMDS'. It # first checks that TAG was not registered elsewhere thanks to # AC_CONFIG_UNIQUE. Then it registers `TAG...' in AC_LIST_FOOS, and for # each `TAG', a special line in AC_LIST_FOOS_COMMANDS which is used in # `config.status' like this: # # case $ac_tag in # AC_LIST_FOOS_COMMANDS # esac # # Finally, the `INIT-CMDS' are dumped into a special diversion, via # `_AC_CONFIG_COMMANDS_INIT'. While `COMMANDS' are output once per TAG, # `INIT-CMDS' are dumped only once per call to AC_CONFIG_FOOS. # # It also leave the TAG in the shell variable ac_config_foo which contains # those which will actually be executed. In other words: # # if false; then # AC_CONFIG_FOOS(bar, [touch bar]) # fi # # will not create bar. # # AC_CONFIG_FOOS can be called several times (with different TAGs of # course). # # Because these macros should not output anything, there should be `dnl' # everywhere. A pain my friend, a pain. So instead in each macro we # divert(-1) and restore the diversion at the end. # # # Honorable members of this family are AC_CONFIG_FILES, # AC_CONFIG_HEADERS, AC_CONFIG_LINKS and AC_CONFIG_COMMANDS. Bad boys # are AC_LINK_FILES, AC_OUTPUT_COMMANDS and AC_OUTPUT when used with # arguments. False members are AC_CONFIG_SRCDIR, AC_CONFIG_SUBDIRS # and AC_CONFIG_AUX_DIR. Cousins are AC_CONFIG_COMMANDS_PRE and # AC_CONFIG_COMMANDS_POST. # AC_CONFIG_IF_MEMBER(DEST, LIST, ACTION-IF-TRUE, ACTION-IF-FALSE) # ---------------------------------------------------------------- # If DEST is member of LIST, expand to ACTION-IF-TRUE, else ACTION-IF-FALSE. # # LIST is an AC_CONFIG list, i.e., a list of DEST[:SOURCE], separated # with spaces. # # FIXME: This macro is badly designed, but I'm not guilty: m4 is. There # is just no way to simply compare two strings in m4, but to use pattern # matching. The big problem is then that the active characters should # be quoted. Currently `+*.' are quoted. m4_define([AC_CONFIG_IF_MEMBER], [m4_if(m4_regexp($2, [\(^\| \)]m4_patsubst([$1], [\([+*.]\)], [\\\1])[\(:\| \|$\)]), -1, [$4], [$3])]) # AC_FILE_DEPENDENCY_TRACE(DEST, SOURCE1, [SOURCE2...]) # ----------------------------------------------------- # This macro does nothing, it's a hook to be read with `autoconf --trace'. # It announces DEST depends upon the SOURCE1 etc. m4_define([AC_FILE_DEPENDENCY_TRACE], []) # _AC_CONFIG_DEPENDENCY(DEST, [SOURCE1], [SOURCE2...]) # ---------------------------------------------------- # Be sure that a missing dependency is expressed as a dependency upon # `DEST.in'. m4_define([_AC_CONFIG_DEPENDENCY], [m4_ifval([$2], [AC_FILE_DEPENDENCY_TRACE($@)], [AC_FILE_DEPENDENCY_TRACE([$1], [$1.in])])]) # _AC_CONFIG_DEPENDENCIES(DEST[:SOURCE1[:SOURCE2...]]...) # ------------------------------------------------------- # Declare the DESTs depend upon their SOURCE1 etc. m4_define([_AC_CONFIG_DEPENDENCIES], [m4_divert_push([KILL]) AC_FOREACH([AC_File], [$1], [_AC_CONFIG_DEPENDENCY(m4_patsubst(AC_File, [:], [,]))]) m4_divert_pop([KILL])dnl ]) # _AC_CONFIG_UNIQUE(DEST[:SOURCE]...) # ----------------------------------- # # Verify that there is no double definition of an output file # (precisely, guarantees there is no common elements between # CONFIG_HEADERS, CONFIG_FILES, CONFIG_LINKS, and CONFIG_SUBDIRS). # # Note that this macro does not check if the list $[1] itself # contains doubles. m4_define([_AC_CONFIG_UNIQUE], [m4_divert_push([KILL]) AC_FOREACH([AC_File], [$1], [m4_pushdef([AC_Dest], m4_patsubst(AC_File, [:.*])) AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_HEADERS], [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_HEADER or AC_CONFIG_HEADERS.])]) AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_LINKS], [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_LINKS.])]) AC_CONFIG_IF_MEMBER(AC_Dest, [_AC_LIST_SUBDIRS], [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_SUBDIRS.])]) AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_COMMANDS], [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_COMMANDS.])]) AC_CONFIG_IF_MEMBER(AC_Dest, [AC_LIST_FILES], [AC_FATAL(`AC_Dest' [is already registered with AC_CONFIG_FILES or AC_OUTPUT.])]) m4_popdef([AC_Dest])]) m4_divert_pop([KILL])dnl ]) # _AC_CONFIG_COMMANDS_INIT([INIT-COMMANDS]) # ----------------------------------------- # # Register INIT-COMMANDS as command pasted *unquoted* in # `config.status'. This is typically used to pass variables from # `configure' to `config.status'. Note that $[1] is not over quoted as # was the case in AC_OUTPUT_COMMANDS. m4_define([_AC_CONFIG_COMMANDS_INIT], [m4_ifval([$1], [m4_append([_AC_OUTPUT_COMMANDS_INIT], [$1 ])])]) # Initialize. m4_define([_AC_OUTPUT_COMMANDS_INIT]) # AC_CONFIG_COMMANDS(NAME...,[COMMANDS], [INIT-CMDS]) # --------------------------------------------------- # # Specify additional commands to be run by config.status. This # commands must be associated with a NAME, which should be thought # as the name of a file the COMMANDS create. AC_DEFUN([AC_CONFIG_COMMANDS], [m4_divert_push([KILL]) _AC_CONFIG_UNIQUE([$1]) m4_append([AC_LIST_COMMANDS], [ $1]) m4_if([$2],,, [AC_FOREACH([AC_Name], [$1], [m4_append([AC_LIST_COMMANDS_COMMANDS], [ ]m4_patsubst(AC_Name, [:.*])[ ) $2 ;; ])])]) _AC_CONFIG_COMMANDS_INIT([$3]) m4_divert_pop([KILL])dnl ac_config_commands="$ac_config_commands $1" ])dnl # Initialize the lists. m4_define([AC_LIST_COMMANDS]) m4_define([AC_LIST_COMMANDS_COMMANDS]) # AC_OUTPUT_COMMANDS(EXTRA-CMDS, INIT-CMDS) # ----------------------------------------- # # Add additional commands for AC_OUTPUT to put into config.status. # # This macro is an obsolete version of AC_CONFIG_COMMANDS. The only # difficulty in mapping AC_OUTPUT_COMMANDS to AC_CONFIG_COMMANDS is # to give a unique key. The scheme we have chosen is `default-1', # `default-2' etc. for each call. # # Unfortunately this scheme is fragile: bad things might happen # if you update an included file and configure.ac: you might have # clashes :( On the other hand, I'd like to avoid weird keys (e.g., # depending upon __file__ or the pid). AU_DEFUN([AC_OUTPUT_COMMANDS], [m4_define([_AC_OUTPUT_COMMANDS_CNT], m4_incr(_AC_OUTPUT_COMMANDS_CNT))dnl dnl Double quoted since that was the case in the original macro. AC_CONFIG_COMMANDS([default-]_AC_OUTPUT_COMMANDS_CNT, [[$1]], [[$2]])dnl ]) # Initialize. AU_DEFUN([_AC_OUTPUT_COMMANDS_CNT], 0) # AC_CONFIG_COMMANDS_PRE(CMDS) # ---------------------------- # Commands to run right before config.status is created. Accumulates. AC_DEFUN([AC_CONFIG_COMMANDS_PRE], [m4_append([AC_OUTPUT_COMMANDS_PRE], [$1 ])]) # Initialize. m4_define([AC_OUTPUT_COMMANDS_PRE]) # AC_CONFIG_COMMANDS_POST(CMDS) # ----------------------------- # Commands to run after config.status was created. Accumulates. AC_DEFUN([AC_CONFIG_COMMANDS_POST], [m4_append([AC_OUTPUT_COMMANDS_POST], [$1 ])]) # Initialize. m4_define([AC_OUTPUT_COMMANDS_POST]) # AC_CONFIG_HEADERS(HEADERS..., [COMMANDS], [INIT-CMDS]) # ------------------------------------------------------ # Specify that the HEADERS are to be created by instantiation of the # AC_DEFINEs. Associate the COMMANDS to the HEADERS. This macro # accumulates if called several times. # # The commands are stored in a growing string AC_LIST_HEADERS_COMMANDS # which should be used like this: # # case $ac_file in # AC_LIST_HEADERS_COMMANDS # esac AC_DEFUN([AC_CONFIG_HEADERS], [m4_divert_push([KILL]) _AC_CONFIG_UNIQUE([$1]) _AC_CONFIG_DEPENDENCIES([$1]) m4_append([AC_LIST_HEADERS], [ $1]) dnl Register the commands m4_ifval([$2], [AC_FOREACH([AC_File], [$1], [m4_append([AC_LIST_HEADERS_COMMANDS], [ ]m4_patsubst(AC_File, [:.*])[ ) $2 ;; ])])]) _AC_CONFIG_COMMANDS_INIT([$3]) m4_divert_pop([KILL])dnl ac_config_headers="$ac_config_headers m4_normalize([$1])" ])dnl # Initialize to empty. It is much easier and uniform to have a config # list expand to empty when undefined, instead of special casing when # not defined (since in this case, AC_CONFIG_FOO expands to AC_CONFIG_FOO). m4_define([AC_LIST_HEADERS]) m4_define([AC_LIST_HEADERS_COMMANDS]) # AC_CONFIG_HEADER(HEADER-TO-CREATE ...) # -------------------------------------- # FIXME: Make it obsolete? AC_DEFUN([AC_CONFIG_HEADER], [AC_CONFIG_HEADERS([$1])]) # AC_CONFIG_LINKS(DEST:SOURCE..., [COMMANDS], [INIT-CMDS]) # -------------------------------------------------------- # Specify that config.status should establish a (symbolic if possible) # link from TOP_SRCDIR/SOURCE to TOP_SRCDIR/DEST. # Reject DEST=., because it is makes it hard for ./config.status # to guess the links to establish (`./config.status .'). AC_DEFUN([AC_CONFIG_LINKS], [m4_divert_push([KILL]) _AC_CONFIG_UNIQUE([$1]) _AC_CONFIG_DEPENDENCIES([$1]) m4_if(m4_regexp([$1], [^\.:\| \.:]), -1,, [AC_FATAL([$0: invalid destination: `.'])]) m4_append([AC_LIST_LINKS], [ $1]) dnl Register the commands m4_ifval([$2], [AC_FOREACH([AC_File], [$1], [m4_append([AC_LIST_LINKS_COMMANDS], [ ]m4_patsubst(AC_File, [:.*])[ ) $2 ;; ])])]) _AC_CONFIG_COMMANDS_INIT([$3]) m4_divert_pop([KILL])dnl ac_config_links="$ac_config_links m4_normalize([$1])" ])dnl # Initialize the list. m4_define([AC_LIST_LINKS]) m4_define([AC_LIST_LINKS_COMMANDS]) # AC_LINK_FILES(SOURCE..., DEST...) # --------------------------------- # Link each of the existing files SOURCE... to the corresponding # link name in DEST... # # Unfortunately we can't provide a very good autoupdate service here, # since in `AC_LINK_FILES($from, $to)' it is possible that `$from' # and `$to' are actually lists. It would then be completely wrong to # replace it with `AC_CONFIG_LINKS($to:$from). It is possible in the # case of literal values though, but because I don't think there is any # interest in creating config links with literal values, no special # mechanism is implemented to handle them. # # _AC_LINK_CNT is used to be robust to multiple calls. AU_DEFUN([AC_LINK_FILES], [m4_if($#, 2, , [m4_fatal([$0: incorrect number of arguments])])dnl m4_define([_AC_LINK_FILES_CNT], m4_incr(_AC_LINK_FILES_CNT))dnl ac_sources="$1" ac_dests="$2" while test -n "$ac_sources"; do set $ac_dests; ac_dest=$[1]; shift; ac_dests=$[*] set $ac_sources; ac_source=$[1]; shift; ac_sources=$[*] [ac_config_links_]_AC_LINK_FILES_CNT="$[ac_config_links_]_AC_LINK_FILES_CNT $ac_dest:$ac_source" done AC_CONFIG_LINKS($[ac_config_links_]_AC_LINK_FILES_CNT)dnl ], [ It is technically impossible to `autoupdate' cleanly from AC_LINK_FILES to AC_CONFIG_FILES. `autoupdate' provides a functional but inelegant update, you should probably tune the result yourself.])# AC_LINK_FILES # Initialize. AU_DEFUN([_AC_LINK_FILES_CNT], 0) # AC_CONFIG_FILES(FILE..., [COMMANDS], [INIT-CMDS]) # ------------------------------------------------- # Specify output files, as with AC_OUTPUT, i.e., files that are # configured with AC_SUBST. Associate the COMMANDS to each FILE, # i.e., when config.status creates FILE, run COMMANDS afterwards. # # The commands are stored in a growing string AC_LIST_FILES_COMMANDS # which should be used like this: # # case $ac_file in # AC_LIST_FILES_COMMANDS # esac AC_DEFUN([AC_CONFIG_FILES], [m4_divert_push([KILL]) _AC_CONFIG_UNIQUE([$1]) _AC_CONFIG_DEPENDENCIES([$1]) m4_append([AC_LIST_FILES], [ $1]) dnl Register the commands. m4_ifval([$2], [AC_FOREACH([AC_File], [$1], [m4_append([AC_LIST_FILES_COMMANDS], [ ]m4_patsubst(AC_File, [:.*])[ ) $2 ;; ])])]) _AC_CONFIG_COMMANDS_INIT([$3]) m4_divert_pop([KILL])dnl ac_config_files="$ac_config_files m4_normalize([$1])" ])dnl # Initialize the lists. m4_define([AC_LIST_FILES]) m4_define([AC_LIST_FILES_COMMANDS]) # AC_CONFIG_SUBDIRS(DIR ...) # -------------------------- # We define two variables: # - ac_subdirs_all # is built in the `default' section, and should contain *all* # the arguments of AC_CONFIG_SUBDIRS. It is used for --help=recursive. # It makes no sense for arguments which are sh variables. # - subdirs # which is built at runtime, so some of these dirs might not be # included, if for instance the user refused a part of the tree. # This is used in _AC_OUTPUT_SUBDIRS. # _AC_LIST_SUBDIRS is used only for _AC_CONFIG_UNIQUE. AC_DEFUN([AC_CONFIG_SUBDIRS], [_AC_CONFIG_UNIQUE([$1])dnl AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl m4_append([_AC_LIST_SUBDIRS], [ $1])dnl AS_LITERAL_IF([$1], [], [AC_DIAGNOSE(syntax, [$0: you should use literals])]) m4_divert_text([DEFAULTS], [ac_subdirs_all="$ac_subdirs_all m4_normalize([$1])"]) AC_SUBST(subdirs, "$subdirs $1")dnl ]) # Initialize the list. m4_define([_AC_LIST_SUBDIRS]) # autoupdate::AC_OUTPUT([CONFIG_FILES...], [EXTRA-CMDS], [INIT-CMDS]) # ------------------------------------------------------------------- # # If there are arguments given to AC_OUTPUT, dispatch them to the # proper modern macros. AU_DEFUN([AC_OUTPUT], [m4_ifvaln([$1], [AC_CONFIG_FILES([$1])])dnl m4_ifvaln([$2$3], [AC_CONFIG_COMMANDS(default, [[$2]], [[$3]])])dnl [AC_OUTPUT]]) # AC_OUTPUT([CONFIG_FILES...], [EXTRA-CMDS], [INIT-CMDS]) # ------------------------------------------------------- # The big finish. # Produce config.status, config.h, and links; and configure subdirs. # The CONFIG_HEADERS are defined in the m4 variable AC_LIST_HEADERS. # Pay special attention not to have too long here docs: some old # shells die. Unfortunately the limit is not known precisely... m4_define([AC_OUTPUT], [dnl Dispatch the extra arguments to their native macros. m4_ifval([$1], [AC_CONFIG_FILES([$1])])dnl m4_ifval([$2$3], [AC_CONFIG_COMMANDS(default, [$2], [$3])])dnl m4_ifval([$1$2$3], [AC_DIAGNOSE([obsolete], [$0 should be used witout arguments. You should run autoupdate.])])dnl AC_CACHE_SAVE test "x$prefix" = xNONE && prefix=$ac_default_prefix # Let make expand exec_prefix. test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' # VPATH may cause trouble with some makes, so we remove $(srcdir), # ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and # trailing colons and then remove the whole line if VPATH becomes empty # (actually we leave an empty line to preserve line numbers). if test "x$srcdir" = x.; then ac_vpsub=['/^[ ]*VPATH[ ]*=/{ s/:*\$(srcdir):*/:/; s/:*\${srcdir}:*/:/; s/:*@srcdir@:*/:/; s/^\([^=]*=[ ]*\):*/\1/; s/:*$//; s/^[^=]*=[ ]*$//; }'] fi m4_ifset([AC_LIST_HEADERS], [DEFS=-DHAVE_CONFIG_H], [AC_OUTPUT_MAKE_DEFS()]) dnl Commands to run before creating config.status. AC_OUTPUT_COMMANDS_PRE()dnl : ${CONFIG_STATUS=./config.status} ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files $CONFIG_STATUS" _AC_OUTPUT_CONFIG_STATUS()dnl ac_clean_files=$ac_clean_files_save dnl Commands to run after config.status was created AC_OUTPUT_COMMANDS_POST()dnl # configure is writing to config.log, and then calls config.status. # config.status does its own redirection, appending to config.log. # Unfortunately, on DOS this fails, as config.log is still kept open # by configure, so config.status won't be able to write to it; its # output is simply discarded. So we exec the FD to /dev/null, # effectively closing config.log, so it can be properly (re)opened and # appended to by config.status. When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: exec AS_MESSAGE_LOG_FD>/dev/null $SHELL $CONFIG_STATUS || ac_cs_success=false exec AS_MESSAGE_LOG_FD>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || AS_EXIT([1]) fi dnl config.status should not do recursion. AC_PROVIDE_IFELSE([AC_CONFIG_SUBDIRS], [_AC_OUTPUT_SUBDIRS()])dnl ])# AC_OUTPUT # _AC_OUTPUT_CONFIG_STATUS # ------------------------ # Produce config.status. Called by AC_OUTPUT. # Pay special attention not to have too long here docs: some old # shells die. Unfortunately the limit is not known precisely... m4_define([_AC_OUTPUT_CONFIG_STATUS], [AC_MSG_NOTICE([creating $CONFIG_STATUS]) cat >$CONFIG_STATUS <<_ACEOF #! $SHELL # Generated automatically by configure. # Run this file to recreate the current configuration. # Compiler output produced by configure, useful for debugging # configure, is in config.log if it exists. debug=false SHELL=\${CONFIG_SHELL-$SHELL} ac_cs_invocation="\$[0] \$[@]" _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF AS_SHELL_SANITIZE exec AS_MESSAGE_FD>&1 _ACEOF # Files that config.status was made for. if test -n "$ac_config_files"; then echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS fi if test -n "$ac_config_headers"; then echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS fi if test -n "$ac_config_links"; then echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS fi if test -n "$ac_config_commands"; then echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS fi cat >>$CONFIG_STATUS <<\EOF ac_cs_usage="\ \`$as_me' instantiates files from templates according to the current configuration. Usage: $[0] [[OPTIONS]] [[FILE]]... -h, --help print this help, then exit -V, --version print version number, then exit -d, --debug don't remove temporary files --recheck update $as_me by reconfiguring in the same conditions m4_ifset([AC_LIST_FILES], [[ --file=FILE[:TEMPLATE] instantiate the configuration file FILE ]])dnl m4_ifset([AC_LIST_HEADERS], [[ --header=FILE[:TEMPLATE] instantiate the configuration header FILE ]])dnl m4_ifset([AC_LIST_FILES], [Configuration files: $config_files ])dnl m4_ifset([AC_LIST_HEADERS], [Configuration headers: $config_headers ])dnl m4_ifset([AC_LIST_LINKS], [Configuration links: $config_links ])dnl m4_ifset([AC_LIST_COMMANDS], [Configuration commands: $config_commands ])dnl Report bugs to ." EOF cat >>$CONFIG_STATUS <>$CONFIG_STATUS <<\EOF # If no file are specified by the user, then we need to provide default # value. By we need to know if files were specified by the user. ac_need_defaults=: while test $[#] != 0 do case $[1] in --*=*) ac_option=`expr "x$[1]" : 'x\([[^=]]*\)='` ac_optarg=`expr "x$[1]" : 'x[[^=]]*=\(.*\)'` shift set dummy "$ac_option" "$ac_optarg" ${1+"$[@]"} shift ;; -*);; *) # This is not an option, so the user has probably given explicit # arguments. ac_need_defaults=false;; esac case $[1] in # Handling of the options. EOF cat >>$CONFIG_STATUS <>$CONFIG_STATUS <<\EOF --version | --vers* | -V ) echo "$ac_cs_version"; exit 0 ;; --he | --h) # Conflict between --help and --header AC_MSG_ERROR([ambiguous option: $[1] Try `$[0] --help' for more information.]);; --help | --hel | -h ) echo "$ac_cs_usage"; exit 0 ;; --debug | --d* | -d ) debug=: ;; --file | --fil | --fi | --f ) shift CONFIG_FILES="$CONFIG_FILES $[1]" ac_need_defaults=false;; --header | --heade | --head | --hea ) shift CONFIG_HEADERS="$CONFIG_HEADERS $[1]" ac_need_defaults=false;; # Handling of arguments. 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