mirror/autoconf
2
0
Fork 0
mirror of git://git.sv.gnu.org/autoconf synced 2024-11-27 01:49:56 +08:00
Code Issues Packages Projects Releases Wiki Activity

support --program* options

Browse Source
This commit is contained in:
David MacKenzie 1994-09-07 03:06:34 +00:00
parent 242839f259
commit c6ce56db69
8 changed files with 462 additions and 117 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
NEWS
View File

@ -22,6 +22,9 @@ Major changes in release 2.0:
* AC_CONFIG_AUX_DIR, AC_CANONICAL_SYSTEM, AC_CANONICAL_HOST, AC_LINK_FILES to
support deciding unguessable features based on the host and target types.
* AC_CONFIG_SUBDIRS to recursively configure a source tree.
* AC_ARG_PROGRAM, which uses the options --program-prefix,
--program-suffix, and --program-transform-name to change the names
of programs being installed.
* AC_CHECK_TYPE, which checks whether sys/types.h defines a given type.
* AC_CHECK_LIB, which checks for a particular function in a library.
* AC_MSG_CHECKING and AC_MSG_RESULT to print test results, on a single line,
@ -42,6 +45,7 @@ Major changes in release 2.0:
* AC_OUTPUT and AC_CONFIG_HEADER allow you to override the input-file names.
* AC_OUTPUT automatically substitutes the values of CFLAGS, CXXFLAGS,
CPPFLAGS, and LDFLAGS from the environment, with default values.
* AC_PROG_CC and AC_PROG_CXX now set CFLAGS and CXXFLAGS, respectively.
* AC_PROG_INSTALL looks for install.sh in the directory specified by
AC_CONFIG_AUXDIR, or srcdir or srcdir/.. or srcdir/../.. by default.
* AC_DEFINE, AC_DEFINE_UNQUOTED, and AC_SUBST are more robust and smaller.
@ -57,7 +61,7 @@ Major changes in release 2.0:
better maintained with them.
* AC_ARG_ARRAY removed because no one was likely using it.
* AC_HAVE_POUNDBANG replaced with AC_SYS_INTERPRETER, which doesn't
take arguments.
take arguments, for consistency with all of the other specific checks.
** New utilities:
* autoscan to generate a preliminary configure.in for a package by

7
TODO
View File

@ -1,17 +1,20 @@
-*- outline -*-
Things it would be nice to maybe do someday:
Things it might be nice to do someday:
------------------------------------------------------------------------------
* Replace the current ad-hoc macros for Dynix, SCO, ISC, etc.
Perhaps there should be macros for certain functions (statfs, wait) or
classes of functions (POSIX, NIS) that do everything necessary, instead.
Select the right CONFIG_SHELL automatically (Ultrix, Lynx esp.)
Select the right C compiler and POSIX/ANSI C options automatically.
------------------------------------------------------------------------------
* Select the right CONFIG_SHELL automatically (for Ultrix, Lynx especially.)
------------------------------------------------------------------------------
* Support copying and adding "dir" commands to .gdbinit.
------------------------------------------------------------------------------

69
acgeneral.m4
View File

@ -139,8 +139,7 @@ AC_DEFUN(AC_INIT_PARSE_ARGS,
[# Save the original args to write them into config.status later.
configure_args="[$]@"
# Omit some internal, obsolete, or unimplemented options to make the
# list less imposing.
# Omit some internal or obsolete options to make the list less imposing.
changequote(, )dnl
ac_usage="Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
@ -150,10 +149,12 @@ Configuration:
--no-create do not create output files
--quiet, --silent do not print \`checking...' messages
--version print the version of autoconf that created configure
Directories:
Directory and file names:
--exec-prefix=PREFIX install host dependent files in PREFIX [/usr/local]
--prefix=PREFIX install host independent files in PREFIX [/usr/local]
--srcdir=DIR find the sources in DIR [configure dir or ..]
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
Host type:
--build=BUILD configure for building on BUILD [BUILD=HOST]
--host=HOST configure for HOST [guessed]
@ -179,9 +180,9 @@ no_create=
nonopt=NONE
no_recursion=
prefix=NONE
program_prefix=
program_suffix=
program_transform_name=
program_prefix=NONE
program_suffix=NONE
program_transform_name=NONE
silent=
srcdir=
target=NONE
@ -457,8 +458,7 @@ This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
" 1>&AC_FD_CC
# Save the original args if we used an alternate arg parser.
ac_configure_temp="${configure_args-[$]@}"
ac_configure_temp="$configure_args"
# Strip out --no-create and --no-recursion so they do not pile up.
# Also quote any args containing spaces.
configure_args=
@ -578,6 +578,30 @@ AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])dnl
])
dnl ### Transforming program names.
dnl AC_ARG_PROGRAM()
AC_DEFUN(AC_ARG_PROGRAM,
[test "${program_transform_name}" = NONE && program_transform_name=
if test -n "${program_transform_name}"; then
# Double any \ or $.
echo 's,\\,\\\\,g; s,\$,$$,g' > conftestsed
program_transform_name="-e `echo ${program_transform_name} | sed -f conftestsed`"
rm -f conftestsed
fi
test "${program_prefix}" != NONE &&
program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
# Use a double $ so make ignores it.
test "${program_suffix}" != NONE &&
program_transform_name="-e s,\$\$,${program_suffix}, ${program_transform_name}"
# sed with no file args requires a program.
test "${program_transform_name}" = "" && program_transform_name="-e s,x,x,"
AC_SUBST(program_transform_name)dnl
])
dnl ### Version numbers
@ -655,6 +679,7 @@ AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
dnl Canonicalize the host, target, and build system types.
AC_DEFUN(AC_CANONICAL_SYSTEM,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_BEFORE([$0], [AC_ARG_PROGRAM])
# Do some error checking and defaulting for the host and target type.
# The inputs are:
# configure --host=HOST --target=TARGET --build=BUILD NONOPT
@ -684,6 +709,9 @@ fi
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_CANONICAL_BUILD
test "${host_alias}" != "${target_alias}" &&
test "${program_prefix}${program_suffix}${program_transform_name}" = \
NONENONENONE && program_prefix=${target_alias}-
])
dnl Subroutines of AC_CANONICAL_SYSTEM.
@ -1299,6 +1327,18 @@ ifelse([$3], , , [$3
fi
])
dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS,
[for ac_hdr in $1
do
AC_CHECK_HEADER(${ac_hdr},
[changequote(, )dnl
ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done
])
dnl AC_CHECK_FUNC(FUNCTION, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_FUNC,
[AC_MSG_CHECKING([for $1])
@ -1341,19 +1381,6 @@ changequote([, ])dnl
done
])
dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS,
[AC_REQUIRE_CPP()dnl Make sure the cpp check happens outside the loop.
for ac_hdr in $1
do
AC_CHECK_HEADER(${ac_hdr},
[changequote(, )dnl
ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done
])
dnl AC_REPLACE_FUNCS(FUNCTION-NAME...)
AC_DEFUN(AC_REPLACE_FUNCS,
[for ac_func in $1

102
acspecific.m4
View File

@ -61,10 +61,27 @@ fi])dnl
AC_MSG_RESULT($ac_cv_prog_gcc)
if test $ac_cv_prog_gcc = yes; then
GCC=yes
test "${CFLAGS+set}" = set || CFLAGS='-g -O'
if test "${CFLAGS+set}" != set; then
AC_MSG_CHECKING(whether ${CC-cc} accepts -g)
AC_CACHE_VAL(ac_cv_prog_gcc_g,
[echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
ac_cv_prog_gcc_g=yes
else
ac_cv_prog_gcc_g=no
fi
rm -f conftest*
])dnl
AC_MSG_RESULT($ac_cv_prog_gcc_g)
if test $ac_cv_prog_gcc_g = yes; then
CFLAGS="-g -O"
else
CFLAGS="-O"
fi
fi
else
GCC=
test "${CFLAGS+set}" = set || CFLAGS='-g'
test "${CFLAGS+set}" = set || CFLAGS="-g"
fi
])
@ -86,10 +103,27 @@ else
fi])dnl
if test $ac_cv_prog_gxx = yes; then
GXX=yes
test "${CXXFLAGS+set}" = set || CXXFLAGS='-g -O'
if test "${CXXFLAGS+set}" != set; then
AC_MSG_CHECKING(whether ${CXX-gcc} accepts -g)
AC_CACHE_VAL(ac_cv_prog_gxx_g,
[echo 'void f(){}' > conftest.cc
if test -z "`${CXX-gcc} -g -c conftest.cc 2>&1`"; then
ac_cv_prog_gxx_g=yes
else
ac_cv_prog_gxx_g=no
fi
rm -f conftest*
])dnl
AC_MSG_RESULT($ac_cv_prog_gxx_g)
if test $ac_cv_prog_gxx_g = yes; then
CXXFLAGS="-g -O"
else
CXXFLAGS="-O"
fi
fi
else
GXX=
test "${CXXFLAGS+set}" = set || CXXFLAGS='-g'
test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
fi
])
@ -97,7 +131,7 @@ AC_DEFUN(AC_PROG_GCC_TRADITIONAL,
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
if test $ac_cv_prog_gcc = yes; then
AC_MSG_CHECKING(whether -traditional is needed)
AC_MSG_CHECKING(whether ${CC-cc} needs -traditional)
AC_CACHE_VAL(ac_cv_prog_gcc_traditional,
[ ac_pattern="Autoconf.*'x'"
AC_EGREP_CPP($ac_pattern, [#include <sgtty.h>
@ -288,7 +322,9 @@ AC_SUBST(LEX_OUTPUT_ROOT)dnl
AC_DEFUN(AC_PROG_INSTALL,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Make sure to not get an incompatible install:
# Find a good install program. We prefer a C program (faster),
# so one script is as good as another. But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
@ -305,7 +341,7 @@ AC_CACHE_VAL(ac_cv_path_install,
''|.|/etc|/usr/sbin|/usr/etc|/sbin|/usr/afsws/bin|/usr/ucb) ;;
*)
# OSF1, X11, and SCO ODT 3.0 have their own names for install.
for ac_prog in ginstall installbsd bsdinst scoinst install; do
for ac_prog in ginstall installbsd scoinst install; do
if test -f $ac_dir/$ac_prog; then
if test $ac_prog = install &&
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
@ -445,17 +481,49 @@ fi
])
AC_DEFUN(AC_HEADER_DIRENT,
[ac_header_dir=no
AC_CHECK_HEADERS(dirent.h sys/ndir.h sys/dir.h ndir.h,
[ac_header_dir=$ac_hdr; break])
[ac_header_dirent=no
AC_CHECK_HEADERS_DIRENT(dirent.h sys/ndir.h sys/dir.h ndir.h,
[ac_header_dirent=$ac_hdr; break])
])
dnl Like AC_CHECK_HEADER, except also make sure that HEADER-FILE
dnl defines the type `DIR'. dirent.h on NextStep 3.2 doesn't.
dnl AC_CHECK_HEADER_DIRENT(HEADER-FILE, ACTION-IF-FOUND)
AC_DEFUN(AC_CHECK_HEADER_DIRENT,
[ac_safe=`echo "$1" | tr './' '__'`
AC_MSG_CHECKING([for $1 that defines DIR])
AC_CACHE_VAL(ac_cv_header_dirent_$ac_safe,
[AC_TRY_LINK([#include <sys/types.h>
#include <$1>], [DIR *dirp = 0;],
eval "ac_cv_header_dirent_$ac_safe=yes",
eval "ac_cv_header_dirent_$ac_safe=no")])dnl
if eval "test \"`echo '$ac_cv_header_dirent_'$ac_safe`\" = yes"; then
AC_MSG_RESULT(yes)
$2
else
AC_MSG_RESULT(no)
fi
])
dnl Like AC_CHECK_HEADERS, except succeed only for a HEADER-FILE that
dnl defines `DIR'.
dnl AC_CHECK_HEADERS_DIRENT(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS_DIRENT,
[for ac_hdr in $1
do
AC_CHECK_HEADER_DIRENT(${ac_hdr},
[changequote(, )dnl
ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done])
AC_DEFUN(AC_FUNC_CLOSEDIR_VOID,
[AC_REQUIRE([AC_HEADER_DIRENT])dnl
AC_MSG_CHECKING(whether closedir returns void)
AC_CACHE_VAL(ac_cv_func_closedir_void,
[AC_TRY_RUN([#include <sys/types.h>
#include <$ac_header_dir>
#include <$ac_header_dirent>
int closedir(); main() { exit(closedir(opendir(".")) != 0); }],
ac_cv_func_closedir_void=no, ac_cv_func_closedir_void=yes)])dnl
AC_MSG_RESULT($ac_cv_func_closedir_void)
@ -466,12 +534,12 @@ fi
dnl Obsolete.
AC_DEFUN(AC_DIR_HEADER,
[ac_header_dir=no
[ac_header_dirent=no
for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
AC_CHECK_HEADER($ac_hdr, [ac_header_dir=$ac_hdr; break])
AC_CHECK_HEADER_DIRENT($ac_hdr, [ac_header_dirent=$ac_hdr; break])
done
case "$ac_header_dir" in
case "$ac_header_dirent" in
dirent.h) AC_DEFINE(DIRENT) ;;
sys/ndir.h) AC_DEFINE(SYSNDIR) ;;
sys/dir.h) AC_DEFINE(SYSDIR) ;;
@ -481,7 +549,7 @@ esac
AC_MSG_CHECKING(whether closedir returns void)
AC_CACHE_VAL(ac_cv_func_closedir_void,
[AC_TRY_RUN([#include <sys/types.h>
#include <$ac_header_dir>
#include <$ac_header_dirent>
int closedir(); main() { exit(closedir(opendir(".")) != 0); }],
ac_cv_func_closedir_void=no, ac_cv_func_closedir_void=yes)])dnl
AC_MSG_RESULT($ac_cv_func_closedir_void)
@ -1211,7 +1279,7 @@ AC_DEFUN(AC_C_CROSS,
[# If we cannot run a trivial program, we must be cross compiling.
AC_MSG_CHECKING(whether cross-compiling)
AC_CACHE_VAL(ac_cv_c_cross,
[AC_TRY_RUN([main(){exit(0);}],
[AC_TRY_RUN([main(){return(0);}],
ac_cv_c_cross=no, ac_cv_c_cross=yes, ac_cv_cross=yes)])dnl
cross_compiling=$ac_cv_c_cross
AC_MSG_RESULT($ac_cv_c_cross)
@ -1748,7 +1816,7 @@ AC_EGREP_CPP(yes,
], [AC_MSG_RESULT(yes); XENIX=yes], [AC_MSG_RESULT(no); XENIX=])
if test "$XENIX" = yes; then
LIBS="$LIBS -lx"
if test $ac_header_dir != sys/ndir.h; then
if test $ac_header_dirent != sys/ndir.h; then
LIBS="-ldir $LIBS" # Make sure -ldir precedes -lx.
fi
fi

112
autoconf.texi
View File

@ -133,6 +133,7 @@ Controlling Autoconf Operation
* Input:: Where Autoconf should find files.
* Output:: Controlling Autoconf output files.
* Package Options:: Selecting optional features.
* Transforming Names:: Changing program names when installing.
* Versions:: Version numbers in producing @code{configure}.
Existing Tests
@ -169,7 +170,7 @@ Library Functions
Primitives For Building Tests
* C System Output:: Checking output of C compiler system.
* C System Output:: Checking output of the C compiler system.
* Setting Variables:: Setting shell and @code{make} variables.
* Printing Messages:: Notifying users of progress or problems.
* Language Choice:: Selecting which language to use for testing.
@ -720,6 +721,7 @@ optional features of the user's package.
* Input:: Where Autoconf should find files.
* Output:: Controlling Autoconf output files.
* Package Options:: Selecting optional features.
* Transforming Names:: Changing program names when installing.
* Versions:: Version numbers in producing @code{configure}.
@end menu
@ -835,7 +837,7 @@ substitutions performed on them in @code{configure}. You can use
@var{extra-cmds}.
@end defmac
@node Package Options, Versions, Output, Operation
@node Package Options, Transforming Names, Output, Operation
@section Checking for Package Options
These macros check whether the user gave @code{configure} command line
@ -923,7 +925,75 @@ This is an obsolete version of @code{AC_ARG_WITH} that does not
support providing a help string.
@end defmac
@node Versions, , Package Options, Operation
@node Transforming Names, Versions, Package Options, Operation
@section Transforming Program Names When Installing
Autoconf supports giving @code{configure} the following command line
options to change the names of programs being installed:
@table @code
@item --program-prefix=@var{prefix}
prepend @var{prefix} to the names;
@item --program-suffix=@var{suffix}
append @var{suffix} to the names;
@item --program-transform-name=@var{expression}
perform @code{sed} substitution @var{expression} on the names. The main
use for this option is to prevent the automatic addition of a target
name prefix to program names (see below) by giving an empty
@var{expression}. As another possibility,
@samp{--program-transform-name='s,^\(........\).*,\1.exe,'} could be used to
truncate installed program names to 8 characters and append @file{.exe}.
@end table
In order to use the values given to those options, @file{configure.in}
must call the macro @code{AC_ARG_PROGRAM}.
@defmac AC_ARG_PROGRAM
@maindex ARG_PROGRAM
Place in @file{Makefile} variable @code{program_transform_name} a
sequence of @code{sed} commands for changing the names of installed
programs.
If any of the above options are given to @code{configure}, program names
are transformed accordingly. Otherwise, if @code{AC_CANONICAL_SYSTEM}
has been called and a @samp{--target} value is given that differs from
the host type (specified with @samp{--host} or defaulted by
@code{config.sub}), the target type followed by a dash is used as a
prefix. Otherwise, no program name transformation is done.
These transformations are useful with programs that can be part of a
cross-compilation development environment. For example, a
cross-assembler running on a Sun 4 configured with
@samp{--target=i960-vxworks} is normally installed as
@file{i960-vxworks-as}, rather than @file{as}, which could be confused
with a native Sun 4 assembler.
They can also force a program name to begin with @file{g}, if you don't
want GNU programs installed on your system to shadow system programs by
the same name. For example, if GNU @code{make} used this macro, you
could configure it with @samp{--program-prefix=g} and when you ran
@samp{make install}, it would be installed as
@file{/usr/local/bin/gmake}.
Use the variable @code{program_transform_name} as in this example for
an assembler, compiled as @file{as.new}. The shell variable @code{t}
is needed in case @code{program_transform_name} contains any shell
special characters. With quoting and variable substitutions, whitespace
still properly separates @code{sed} arguments, but other special
characters have no effect.
@example
program_transform_name=@@program_transform_name@@
install: all
name=`t='$(program_transform_name)'; echo as | sed $$t` ; \
$(INSTALL_PROGRAM) as.new $(bindir)/$$name
@end example
@end defmac
@node Versions, , Transforming Names, Operation
@section Controlling Autoconf Versions
The following macros manage version numbers for @code{configure} scripts.
@ -1056,10 +1126,12 @@ finds.
Determine a C compiler to use. If @code{CC} is not already set in the
environment, check for @code{gcc}, and use @code{cc} if it's not found.
Set @code{make} variable @code{CC} to the name of the compiler found.
Set shell variable @code{GCC} to @samp{yes} if using the GNU C
compiler, empty otherwise, and if @code{make} variable @code{CFLAGS} was
not already set, set it to @samp{-g -O} for the GNU C compiler or
@samp{-g} for other compilers.
If using the GNU C compiler, set shell variable @code{GCC} to
@samp{yes}, empty otherwise. If @code{make} variable @code{CFLAGS} was
not already set, set it to @samp{-g -O} for the GNU C compiler
(@samp{-O} on systems where GCC does not accept @samp{-g}), or @samp{-g}
for other compilers.
@end defmac
@defmac AC_PROG_CC_C_O
@ -1091,10 +1163,13 @@ Determine a C++ compiler to use. Check if the environment variable
variable @code{CXX} to its value. Otherwise search for a C++ compiler
under likely names (@code{c++}, @code{g++}, @code{gcc}, @code{CC}, and
@code{cxx}). If none of those checks succeed, as a last resort set
@code{CXX} to @code{gcc}. Also set shell variable @code{GXX} to
@samp{yes} if using the GNU C++ compiler, empty otherwise, and if
@code{make} variable @code{CXXFLAGS} was not already set, set it to
@samp{-g -O} for the GNU C++ compiler or @samp{-g} for other compilers.
@code{CXX} to @code{gcc}.
If using the GNU C++ compiler, set shell variable @code{GXX} to
@samp{yes}, empty otherwise. If @code{make} variable @code{CXXFLAGS} was
not already set, set it to @samp{-g -O} for the GNU C++ compiler
(@samp{-O} on systems where G++ does not accept @samp{-g}), or @samp{-g}
for other compilers.
@end defmac
@defmac AC_PROG_CXXCPP
@ -1278,10 +1353,7 @@ This macro is equivalent to calling @code{AC_CHECK_LIB} with a
be written as any of @samp{foo}, @samp{-lfoo}, or @samp{libfoo.a}. In
all of those cases, the compiler is passed @samp{-lfoo}. However,
@var{library} can not be a shell variable; it must be a literal name.
This macro is considered obsolete, because some linkers (e.g., Apollo's)
do not fail when asked to link with a nonexistent library if there are
no unresolved sybols.
This macro is considered obsolete.
@end defmac
@node Header Files, Typedefs, Libraries, Existing Tests
@ -1347,7 +1419,7 @@ define @code{VOID_CLOSEDIR}.
@cvindex HAVE_SYS_DIR_H
@cvindex HAVE_SYS_NDIR_H
Check for the the following header files, and for the first one that is
found, define the listed C preprocessor macro:
found and defines @samp{DIR}, define the listed C preprocessor macro:
@table @file
@item dirent.h
@ -2188,7 +2260,7 @@ kinds of features are available and report the results. Within each
section below, the macros are listed in alphabetical order.
@menu
* C System Output:: Checking output of C compiler system.
* C System Output:: Checking output of the C compiler system.
* Setting Variables:: Setting shell and @code{make} variables.
* Printing Messages:: Notifying users of progress or problems.
* Language Choice:: Selecting which language to use for testing.
@ -2842,7 +2914,7 @@ therefore be called after any macros that change which C compiler is
being used, such as @code{AC_PROG_CC}. So @code{AC_PROG_CC} contains:
@example
AC_BEFORE([$0], [AC_PROG_CPP])
AC_BEFORE([$0], [AC_PROG_CPP])dnl
@end example
@noindent
@ -3429,7 +3501,9 @@ values by enclosing their names in @samp{@@} characters.
@ifinfo
@xref{Makefiles}, for more information on @samp{@@} substitutions.
@end ifinfo
The variables that are defined by the Autoconf macros are:
The variables that are automatically defined by the Autoconf macros are
listed here. Some of the Autoconf macros define additional variables,
which are mentioned in the descriptions for those macros.
@defvar exec_prefix
The installation prefix for architecture-specific files.

112
doc/autoconf.texi
View File

@ -133,6 +133,7 @@ Controlling Autoconf Operation
* Input:: Where Autoconf should find files.
* Output:: Controlling Autoconf output files.
* Package Options:: Selecting optional features.
* Transforming Names:: Changing program names when installing.
* Versions:: Version numbers in producing @code{configure}.
Existing Tests
@ -169,7 +170,7 @@ Library Functions
Primitives For Building Tests
* C System Output:: Checking output of C compiler system.
* C System Output:: Checking output of the C compiler system.
* Setting Variables:: Setting shell and @code{make} variables.
* Printing Messages:: Notifying users of progress or problems.
* Language Choice:: Selecting which language to use for testing.
@ -720,6 +721,7 @@ optional features of the user's package.
* Input:: Where Autoconf should find files.
* Output:: Controlling Autoconf output files.
* Package Options:: Selecting optional features.
* Transforming Names:: Changing program names when installing.
* Versions:: Version numbers in producing @code{configure}.
@end menu
@ -835,7 +837,7 @@ substitutions performed on them in @code{configure}. You can use
@var{extra-cmds}.
@end defmac
@node Package Options, Versions, Output, Operation
@node Package Options, Transforming Names, Output, Operation
@section Checking for Package Options
These macros check whether the user gave @code{configure} command line
@ -923,7 +925,75 @@ This is an obsolete version of @code{AC_ARG_WITH} that does not
support providing a help string.
@end defmac
@node Versions, , Package Options, Operation
@node Transforming Names, Versions, Package Options, Operation
@section Transforming Program Names When Installing
Autoconf supports giving @code{configure} the following command line
options to change the names of programs being installed:
@table @code
@item --program-prefix=@var{prefix}
prepend @var{prefix} to the names;
@item --program-suffix=@var{suffix}
append @var{suffix} to the names;
@item --program-transform-name=@var{expression}
perform @code{sed} substitution @var{expression} on the names. The main
use for this option is to prevent the automatic addition of a target
name prefix to program names (see below) by giving an empty
@var{expression}. As another possibility,
@samp{--program-transform-name='s,^\(........\).*,\1.exe,'} could be used to
truncate installed program names to 8 characters and append @file{.exe}.
@end table
In order to use the values given to those options, @file{configure.in}
must call the macro @code{AC_ARG_PROGRAM}.
@defmac AC_ARG_PROGRAM
@maindex ARG_PROGRAM
Place in @file{Makefile} variable @code{program_transform_name} a
sequence of @code{sed} commands for changing the names of installed
programs.
If any of the above options are given to @code{configure}, program names
are transformed accordingly. Otherwise, if @code{AC_CANONICAL_SYSTEM}
has been called and a @samp{--target} value is given that differs from
the host type (specified with @samp{--host} or defaulted by
@code{config.sub}), the target type followed by a dash is used as a
prefix. Otherwise, no program name transformation is done.
These transformations are useful with programs that can be part of a
cross-compilation development environment. For example, a
cross-assembler running on a Sun 4 configured with
@samp{--target=i960-vxworks} is normally installed as
@file{i960-vxworks-as}, rather than @file{as}, which could be confused
with a native Sun 4 assembler.
They can also force a program name to begin with @file{g}, if you don't
want GNU programs installed on your system to shadow system programs by
the same name. For example, if GNU @code{make} used this macro, you
could configure it with @samp{--program-prefix=g} and when you ran
@samp{make install}, it would be installed as
@file{/usr/local/bin/gmake}.
Use the variable @code{program_transform_name} as in this example for
an assembler, compiled as @file{as.new}. The shell variable @code{t}
is needed in case @code{program_transform_name} contains any shell
special characters. With quoting and variable substitutions, whitespace
still properly separates @code{sed} arguments, but other special
characters have no effect.
@example
program_transform_name=@@program_transform_name@@
install: all
name=`t='$(program_transform_name)'; echo as | sed $$t` ; \
$(INSTALL_PROGRAM) as.new $(bindir)/$$name
@end example
@end defmac
@node Versions, , Transforming Names, Operation
@section Controlling Autoconf Versions
The following macros manage version numbers for @code{configure} scripts.
@ -1056,10 +1126,12 @@ finds.
Determine a C compiler to use. If @code{CC} is not already set in the
environment, check for @code{gcc}, and use @code{cc} if it's not found.
Set @code{make} variable @code{CC} to the name of the compiler found.
Set shell variable @code{GCC} to @samp{yes} if using the GNU C
compiler, empty otherwise, and if @code{make} variable @code{CFLAGS} was
not already set, set it to @samp{-g -O} for the GNU C compiler or
@samp{-g} for other compilers.
If using the GNU C compiler, set shell variable @code{GCC} to
@samp{yes}, empty otherwise. If @code{make} variable @code{CFLAGS} was
not already set, set it to @samp{-g -O} for the GNU C compiler
(@samp{-O} on systems where GCC does not accept @samp{-g}), or @samp{-g}
for other compilers.
@end defmac
@defmac AC_PROG_CC_C_O
@ -1091,10 +1163,13 @@ Determine a C++ compiler to use. Check if the environment variable
variable @code{CXX} to its value. Otherwise search for a C++ compiler
under likely names (@code{c++}, @code{g++}, @code{gcc}, @code{CC}, and
@code{cxx}). If none of those checks succeed, as a last resort set
@code{CXX} to @code{gcc}. Also set shell variable @code{GXX} to
@samp{yes} if using the GNU C++ compiler, empty otherwise, and if
@code{make} variable @code{CXXFLAGS} was not already set, set it to
@samp{-g -O} for the GNU C++ compiler or @samp{-g} for other compilers.
@code{CXX} to @code{gcc}.
If using the GNU C++ compiler, set shell variable @code{GXX} to
@samp{yes}, empty otherwise. If @code{make} variable @code{CXXFLAGS} was
not already set, set it to @samp{-g -O} for the GNU C++ compiler
(@samp{-O} on systems where G++ does not accept @samp{-g}), or @samp{-g}
for other compilers.
@end defmac
@defmac AC_PROG_CXXCPP
@ -1278,10 +1353,7 @@ This macro is equivalent to calling @code{AC_CHECK_LIB} with a
be written as any of @samp{foo}, @samp{-lfoo}, or @samp{libfoo.a}. In
all of those cases, the compiler is passed @samp{-lfoo}. However,
@var{library} can not be a shell variable; it must be a literal name.
This macro is considered obsolete, because some linkers (e.g., Apollo's)
do not fail when asked to link with a nonexistent library if there are
no unresolved sybols.
This macro is considered obsolete.
@end defmac
@node Header Files, Typedefs, Libraries, Existing Tests
@ -1347,7 +1419,7 @@ define @code{VOID_CLOSEDIR}.
@cvindex HAVE_SYS_DIR_H
@cvindex HAVE_SYS_NDIR_H
Check for the the following header files, and for the first one that is
found, define the listed C preprocessor macro:
found and defines @samp{DIR}, define the listed C preprocessor macro:
@table @file
@item dirent.h
@ -2188,7 +2260,7 @@ kinds of features are available and report the results. Within each
section below, the macros are listed in alphabetical order.
@menu
* C System Output:: Checking output of C compiler system.
* C System Output:: Checking output of the C compiler system.
* Setting Variables:: Setting shell and @code{make} variables.
* Printing Messages:: Notifying users of progress or problems.
* Language Choice:: Selecting which language to use for testing.
@ -2842,7 +2914,7 @@ therefore be called after any macros that change which C compiler is
being used, such as @code{AC_PROG_CC}. So @code{AC_PROG_CC} contains:
@example
AC_BEFORE([$0], [AC_PROG_CPP])
AC_BEFORE([$0], [AC_PROG_CPP])dnl
@end example
@noindent
@ -3429,7 +3501,9 @@ values by enclosing their names in @samp{@@} characters.
@ifinfo
@xref{Makefiles}, for more information on @samp{@@} substitutions.
@end ifinfo
The variables that are defined by the Autoconf macros are:
The variables that are automatically defined by the Autoconf macros are
listed here. Some of the Autoconf macros define additional variables,
which are mentioned in the descriptions for those macros.
@defvar exec_prefix
The installation prefix for architecture-specific files.

69
lib/autoconf/general.m4
View File

@ -139,8 +139,7 @@ AC_DEFUN(AC_INIT_PARSE_ARGS,
[# Save the original args to write them into config.status later.
configure_args="[$]@"
# Omit some internal, obsolete, or unimplemented options to make the
# list less imposing.
# Omit some internal or obsolete options to make the list less imposing.
changequote(, )dnl
ac_usage="Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
@ -150,10 +149,12 @@ Configuration:
--no-create do not create output files
--quiet, --silent do not print \`checking...' messages
--version print the version of autoconf that created configure
Directories:
Directory and file names:
--exec-prefix=PREFIX install host dependent files in PREFIX [/usr/local]
--prefix=PREFIX install host independent files in PREFIX [/usr/local]
--srcdir=DIR find the sources in DIR [configure dir or ..]
--program-prefix=PREFIX prepend PREFIX to installed program names
--program-suffix=SUFFIX append SUFFIX to installed program names
Host type:
--build=BUILD configure for building on BUILD [BUILD=HOST]
--host=HOST configure for HOST [guessed]
@ -179,9 +180,9 @@ no_create=
nonopt=NONE
no_recursion=
prefix=NONE
program_prefix=
program_suffix=
program_transform_name=
program_prefix=NONE
program_suffix=NONE
program_transform_name=NONE
silent=
srcdir=
target=NONE
@ -457,8 +458,7 @@ This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
" 1>&AC_FD_CC
# Save the original args if we used an alternate arg parser.
ac_configure_temp="${configure_args-[$]@}"
ac_configure_temp="$configure_args"
# Strip out --no-create and --no-recursion so they do not pile up.
# Also quote any args containing spaces.
configure_args=
@ -578,6 +578,30 @@ AC_ARG_WITH([$1], [ --with-$1], [$2], [$3])dnl
])
dnl ### Transforming program names.
dnl AC_ARG_PROGRAM()
AC_DEFUN(AC_ARG_PROGRAM,
[test "${program_transform_name}" = NONE && program_transform_name=
if test -n "${program_transform_name}"; then
# Double any \ or $.
echo 's,\\,\\\\,g; s,\$,$$,g' > conftestsed
program_transform_name="-e `echo ${program_transform_name} | sed -f conftestsed`"
rm -f conftestsed
fi
test "${program_prefix}" != NONE &&
program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
# Use a double $ so make ignores it.
test "${program_suffix}" != NONE &&
program_transform_name="-e s,\$\$,${program_suffix}, ${program_transform_name}"
# sed with no file args requires a program.
test "${program_transform_name}" = "" && program_transform_name="-e s,x,x,"
AC_SUBST(program_transform_name)dnl
])
dnl ### Version numbers
@ -655,6 +679,7 @@ AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
dnl Canonicalize the host, target, and build system types.
AC_DEFUN(AC_CANONICAL_SYSTEM,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
AC_BEFORE([$0], [AC_ARG_PROGRAM])
# Do some error checking and defaulting for the host and target type.
# The inputs are:
# configure --host=HOST --target=TARGET --build=BUILD NONOPT
@ -684,6 +709,9 @@ fi
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_CANONICAL_BUILD
test "${host_alias}" != "${target_alias}" &&
test "${program_prefix}${program_suffix}${program_transform_name}" = \
NONENONENONE && program_prefix=${target_alias}-
])
dnl Subroutines of AC_CANONICAL_SYSTEM.
@ -1299,6 +1327,18 @@ ifelse([$3], , , [$3
fi
])
dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS,
[for ac_hdr in $1
do
AC_CHECK_HEADER(${ac_hdr},
[changequote(, )dnl
ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done
])
dnl AC_CHECK_FUNC(FUNCTION, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
AC_DEFUN(AC_CHECK_FUNC,
[AC_MSG_CHECKING([for $1])
@ -1341,19 +1381,6 @@ changequote([, ])dnl
done
])
dnl AC_CHECK_HEADERS(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS,
[AC_REQUIRE_CPP()dnl Make sure the cpp check happens outside the loop.
for ac_hdr in $1
do
AC_CHECK_HEADER(${ac_hdr},
[changequote(, )dnl
ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done
])
dnl AC_REPLACE_FUNCS(FUNCTION-NAME...)
AC_DEFUN(AC_REPLACE_FUNCS,
[for ac_func in $1

102
lib/autoconf/specific.m4
View File

@ -61,10 +61,27 @@ fi])dnl
AC_MSG_RESULT($ac_cv_prog_gcc)
if test $ac_cv_prog_gcc = yes; then
GCC=yes
test "${CFLAGS+set}" = set || CFLAGS='-g -O'
if test "${CFLAGS+set}" != set; then
AC_MSG_CHECKING(whether ${CC-cc} accepts -g)
AC_CACHE_VAL(ac_cv_prog_gcc_g,
[echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
ac_cv_prog_gcc_g=yes
else
ac_cv_prog_gcc_g=no
fi
rm -f conftest*
])dnl
AC_MSG_RESULT($ac_cv_prog_gcc_g)
if test $ac_cv_prog_gcc_g = yes; then
CFLAGS="-g -O"
else
CFLAGS="-O"
fi
fi
else
GCC=
test "${CFLAGS+set}" = set || CFLAGS='-g'
test "${CFLAGS+set}" = set || CFLAGS="-g"
fi
])
@ -86,10 +103,27 @@ else
fi])dnl
if test $ac_cv_prog_gxx = yes; then
GXX=yes
test "${CXXFLAGS+set}" = set || CXXFLAGS='-g -O'
if test "${CXXFLAGS+set}" != set; then
AC_MSG_CHECKING(whether ${CXX-gcc} accepts -g)
AC_CACHE_VAL(ac_cv_prog_gxx_g,
[echo 'void f(){}' > conftest.cc
if test -z "`${CXX-gcc} -g -c conftest.cc 2>&1`"; then
ac_cv_prog_gxx_g=yes
else
ac_cv_prog_gxx_g=no
fi
rm -f conftest*
])dnl
AC_MSG_RESULT($ac_cv_prog_gxx_g)
if test $ac_cv_prog_gxx_g = yes; then
CXXFLAGS="-g -O"
else
CXXFLAGS="-O"
fi
fi
else
GXX=
test "${CXXFLAGS+set}" = set || CXXFLAGS='-g'
test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
fi
])
@ -97,7 +131,7 @@ AC_DEFUN(AC_PROG_GCC_TRADITIONAL,
[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
if test $ac_cv_prog_gcc = yes; then
AC_MSG_CHECKING(whether -traditional is needed)
AC_MSG_CHECKING(whether ${CC-cc} needs -traditional)
AC_CACHE_VAL(ac_cv_prog_gcc_traditional,
[ ac_pattern="Autoconf.*'x'"
AC_EGREP_CPP($ac_pattern, [#include <sgtty.h>
@ -288,7 +322,9 @@ AC_SUBST(LEX_OUTPUT_ROOT)dnl
AC_DEFUN(AC_PROG_INSTALL,
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
# Make sure to not get an incompatible install:
# Find a good install program. We prefer a C program (faster),
# so one script is as good as another. But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
@ -305,7 +341,7 @@ AC_CACHE_VAL(ac_cv_path_install,
''|.|/etc|/usr/sbin|/usr/etc|/sbin|/usr/afsws/bin|/usr/ucb) ;;
*)
# OSF1, X11, and SCO ODT 3.0 have their own names for install.
for ac_prog in ginstall installbsd bsdinst scoinst install; do
for ac_prog in ginstall installbsd scoinst install; do
if test -f $ac_dir/$ac_prog; then
if test $ac_prog = install &&
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
@ -445,17 +481,49 @@ fi
])
AC_DEFUN(AC_HEADER_DIRENT,
[ac_header_dir=no
AC_CHECK_HEADERS(dirent.h sys/ndir.h sys/dir.h ndir.h,
[ac_header_dir=$ac_hdr; break])
[ac_header_dirent=no
AC_CHECK_HEADERS_DIRENT(dirent.h sys/ndir.h sys/dir.h ndir.h,
[ac_header_dirent=$ac_hdr; break])
])
dnl Like AC_CHECK_HEADER, except also make sure that HEADER-FILE
dnl defines the type `DIR'. dirent.h on NextStep 3.2 doesn't.
dnl AC_CHECK_HEADER_DIRENT(HEADER-FILE, ACTION-IF-FOUND)
AC_DEFUN(AC_CHECK_HEADER_DIRENT,
[ac_safe=`echo "$1" | tr './' '__'`
AC_MSG_CHECKING([for $1 that defines DIR])
AC_CACHE_VAL(ac_cv_header_dirent_$ac_safe,
[AC_TRY_LINK([#include <sys/types.h>
#include <$1>], [DIR *dirp = 0;],
eval "ac_cv_header_dirent_$ac_safe=yes",
eval "ac_cv_header_dirent_$ac_safe=no")])dnl
if eval "test \"`echo '$ac_cv_header_dirent_'$ac_safe`\" = yes"; then
AC_MSG_RESULT(yes)
$2
else
AC_MSG_RESULT(no)
fi
])
dnl Like AC_CHECK_HEADERS, except succeed only for a HEADER-FILE that
dnl defines `DIR'.
dnl AC_CHECK_HEADERS_DIRENT(HEADER-FILE... [, ACTION])
AC_DEFUN(AC_CHECK_HEADERS_DIRENT,
[for ac_hdr in $1
do
AC_CHECK_HEADER_DIRENT(${ac_hdr},
[changequote(, )dnl
ac_tr_hdr=HAVE_`echo $ac_hdr | tr '[a-z]./' '[A-Z]__'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED(${ac_tr_hdr}) $2])dnl
done])
AC_DEFUN(AC_FUNC_CLOSEDIR_VOID,
[AC_REQUIRE([AC_HEADER_DIRENT])dnl
AC_MSG_CHECKING(whether closedir returns void)
AC_CACHE_VAL(ac_cv_func_closedir_void,
[AC_TRY_RUN([#include <sys/types.h>
#include <$ac_header_dir>
#include <$ac_header_dirent>
int closedir(); main() { exit(closedir(opendir(".")) != 0); }],
ac_cv_func_closedir_void=no, ac_cv_func_closedir_void=yes)])dnl
AC_MSG_RESULT($ac_cv_func_closedir_void)
@ -466,12 +534,12 @@ fi
dnl Obsolete.
AC_DEFUN(AC_DIR_HEADER,
[ac_header_dir=no
[ac_header_dirent=no
for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
AC_CHECK_HEADER($ac_hdr, [ac_header_dir=$ac_hdr; break])
AC_CHECK_HEADER_DIRENT($ac_hdr, [ac_header_dirent=$ac_hdr; break])
done
case "$ac_header_dir" in
case "$ac_header_dirent" in
dirent.h) AC_DEFINE(DIRENT) ;;
sys/ndir.h) AC_DEFINE(SYSNDIR) ;;
sys/dir.h) AC_DEFINE(SYSDIR) ;;
@ -481,7 +549,7 @@ esac
AC_MSG_CHECKING(whether closedir returns void)
AC_CACHE_VAL(ac_cv_func_closedir_void,
[AC_TRY_RUN([#include <sys/types.h>
#include <$ac_header_dir>
#include <$ac_header_dirent>
int closedir(); main() { exit(closedir(opendir(".")) != 0); }],
ac_cv_func_closedir_void=no, ac_cv_func_closedir_void=yes)])dnl
AC_MSG_RESULT($ac_cv_func_closedir_void)
@ -1211,7 +1279,7 @@ AC_DEFUN(AC_C_CROSS,
[# If we cannot run a trivial program, we must be cross compiling.
AC_MSG_CHECKING(whether cross-compiling)
AC_CACHE_VAL(ac_cv_c_cross,
[AC_TRY_RUN([main(){exit(0);}],
[AC_TRY_RUN([main(){return(0);}],
ac_cv_c_cross=no, ac_cv_c_cross=yes, ac_cv_cross=yes)])dnl
cross_compiling=$ac_cv_c_cross
AC_MSG_RESULT($ac_cv_c_cross)
@ -1748,7 +1816,7 @@ AC_EGREP_CPP(yes,
], [AC_MSG_RESULT(yes); XENIX=yes], [AC_MSG_RESULT(no); XENIX=])
if test "$XENIX" = yes; then
LIBS="$LIBS -lx"
if test $ac_header_dir != sys/ndir.h; then
if test $ac_header_dirent != sys/ndir.h; then
LIBS="-ldir $LIBS" # Make sure -ldir precedes -lx.
fi
fi