#! @SHELL@ # autoconf -- create `configure' using m4 macros # Copyright (C) 1992, 93, 94, 96, 99, 2000 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. # If given no args, create `configure' from template file `configure.in'. # With one arg, create a configure script on standard output from # the given template file. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: autoconf [OPTION] ... [TEMPLATE-FILE] Generate a configuration script from a TEMPLATE-FILE if given, or \`configure.in' by default. Output is sent to the standard output if TEMPLATE-FILE is given, else into \`configure'. If the option \`--trace' is used, no configuration script is created. -h, --help print this help, then exit -V, --version print version number, then exit -v, --verbose verbosely report processing -d, --debug don't remove temporary files -m, --macrodir=DIR directory storing Autoconf's macro files -l, --localdir=DIR directory storing the \`aclocal.m4' file -t, --trace=MACRO report the list of calls to MACRO -i, --initialization also trace Autoconf's initialization process -o, --output=FILE save output in FILE (stdout is the default) Report bugs to ." version="\ autoconf (GNU @PACKAGE@) @VERSION@ Written by David J. MacKenzie. Copyright (C) 1992, 93, 94, 96, 99, 2000 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help="\ Try \`$me --help' for more information." # NLS nuisances. # Only set these to C if already set. These must not be set unconditionally # because not all systems understand e.g. LANG=C (notably SCO). # Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'! # Non-C LC_CTYPE values break the ctype check. if test "${LANG+set}" = set; then LANG=C; export LANG; fi if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi if test "${LC_CTYPE+set}" = set; then LC_CTYPE=C; export LC_CTYPE; fi # ac_LF_and_DOT # We use echo to avoid assuming a particular line-breaking character. # The extra dot is to prevent the shell from consuming trailing # line-breaks from the sub-command output. A line-break within # single-quotes doesn't work because, if this script is created in a # platform that uses two characters for line-breaks (e.g., DOS), tr # would break. ac_LF_and_DOT=`echo; echo .` # Find GNU m4. # Handle the case that m4 has moved since we were configured. # It may have been found originally in a build directory. : ${M4=@M4@} case "$M4" in /*) test -f "$M4" || M4=m4 ;; esac # Some non-GNU m4's don't reject the --help option, so give them /dev/null. case `$M4 --help &1` in *reload-state*);; *) echo "$me: Autoconf requires GNU m4 1.4 or later" >&2; exit 1 ;; esac # Variables. : ${AC_MACRODIR=@datadir@} : ${AC_ACLOCALDIR=`(aclocal --print-ac-dir) 2>/dev/null`} : ${AWK=@AWK@} debug=false # Trace Autoconf's initialization? initialization=false localdir= outfile= # Exit status. status=0 # Tasks: # - install # Install links to the needed *.m4 extensions. # - trace # Trace the first arguments of some macros # - script # Produce the configure script (default) task=script tmp= verbose=: # Parse command line while test $# -gt 0 ; do case "$1" in --version | --vers* | -V ) echo "$version" ; exit 0 ;; --help | --h* | -h ) echo "$usage"; exit 0 ;; --debug | --d* | -d ) debug=:; shift ;; --verbose | --verb* | -v ) verbose=echo shift;; --localdir=* | --l*=* ) localdir=`echo "$1" | sed -e 's/^[^=]*=//'` shift ;; --localdir | --l* | -l ) shift test $# = 0 && { echo "$help" >&2; exit 1; } localdir=$1 shift ;; --macrodir=* | --m*=* ) AC_MACRODIR=`echo "$1" | sed -e 's/^[^=]*=//'` shift ;; --macrodir | --m* | -m ) shift test $# = 0 && { echo "$help" >&2; exit 1; } AC_MACRODIR=$1 shift ;; --install ) task=install shift;; --trace | -t ) task=trace shift test $# = 0 && { echo "$help" >&2; exit 1; } traces="$traces '$1'" shift ;; --trace=* ) task=trace traces="$traces '"`echo "$1" | sed -e 's/^[^=]*=//;s/:.*//'`"'" shift ;; --initialization | -i ) initialization=: shift;; --output | -o ) shift test $# = 0 && { echo "$help" >&2; exit 1; } outfile=$1 shift ;; --output=* ) outfile=`echo "$1" | sed -e 's/^[^=]*=//'` shift ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) exec >&2 echo "$me: invalid option $1" echo "$help" exit 1 ;; * ) break ;; esac done # Trap on 0 to stop playing with `rm'. $debug || { trap 'status=$?; rm -rf $tmp && exit $status' 0 trap 'exit $?' 1 2 13 15 } # Temporary files. : ${TMPDIR=/tmp} { tmp=`(mktemp -d -q "$TMPDIR/acXXXXXX") 2>/dev/null` && test -n "$tmp"; } || { tmp=$TMPDIR/ac$$ && (umask 077 && mkdir $tmp); } || { echo "$me: cannot create a temporary directory in $TMPDIR" >&2; exit 1; } # Running m4. test -n "$localdir" && use_localdir="-I$localdir" run_m4="$M4 $use_localdir -I $AC_MACRODIR autoconf.m4" run_m4f="$M4 $use_localdir --reload $AC_MACRODIR/autoconf.m4f" # Find the input file. case $# in 0) infile=configure.in test $task = script && test "x$outfile" = x && outfile=configure;; 1) infile=$1 ;; *) exec >&2 echo "$me: invalid number of arguments." echo "$help" exit 1 ;; esac # We need an actual file. if test z$infile = z-; then infile=$tmp/stdin cat >$infile elif test ! -r "$infile"; then echo "$me: $infile: No such file or directory" >&2 exit 1 fi # Output is produced into FD 4. Prepare it. case "x$outfile" in x- | x ) # Output to stdout exec 4>&1 ;; * ) exec 4>$outfile;; esac # Initializations are performed. Proceed to the main task. case $task in ## --------------------- ## ## Generate the script. ## ## --------------------- ## script) $run_m4f $infile >$tmp/configure || exit 2 # You could add your own prefixes to pattern if you wanted to check for # them too, e.g. pattern='\(AC_\|ILT_\)', except that UNIX sed doesn't do # alternation. pattern="A[CHM]_" if grep "^[^#]*$pattern" $tmp/configure >/dev/null 2>&1; then echo "$me: undefined macros:" >&2 sed -n "s/^[^#]*\\($pattern[_A-Za-z0-9]*\\).*/\\1/p" $tmp/configure | while read macro; do grep -n "^[^#]*$macro" $infile /dev/null test $? = 1 && echo "***BUG in Autoconf--please report*** $macro" done | sort -u >&2 status=1 fi if test -n "$outfile"; then chmod +x $outfile fi # Put the real line numbers into configure to make config.log more # helpful. Because quoting can sometimes get really painful in m4, # there are special @tokens@ to substitute. $AWK ' { sub(/[ ]*$/, "") if ($0 == "") { if (!duplicate) print duplicate = 1 next } duplicate = 0 oline++ while (sub(/__oline__/, oline)) continue while (sub(/@<:@/, "[")) continue while (sub(/@:>@/, "]")) continue while (sub(/@S\|@/, "$")) continue while (sub(/@%:@/, "#")) continue print }' <$tmp/configure >&4 ;; # End of the task script. ## -------------- ## ## Trace macros. ## ## -------------- ## trace) # `errprint' must be silent when we run `m4 --trace', otherwise there # can be warnings mixed with traces in m4's stderr. cat >$tmp/silent.m4 <<\EOF define(`errprint')dnl EOF # A program to trace m4 macros. cat >$tmp/trace.m4 <<\EOF divert(-1) changequote([, ]) define([_at], [ifelse([$#], [1], [], [$#], [2], [[[$2]]], [[[$2]][$1]_at([$1], shift(shift($@)))])]) define([_star], [ifelse([$#], [1], [], [$#], [2], [smash([$2])], [smash([$2])[$1]_star([$1], shift(shift($@)))])]) # Smash quotes its result. define([smash], [patsubst(patsubst(patsubst([[[$1]]], [\\ ]), [[ ]+], [ ]), [^ *\(.*\) *$], [[\1]])]) define([args], [shift(shift(shift(shift(shift($@)))))]) define([at], [_at([$1], args($@))]) define([star], [_star([$1], args($@))]) EOF # A program to translate user tracing requests into m4 macros. cat >$tmp/translate.awk <<\EOF function trans (arg, sep) { # File name. if (arg == "f") return "$1" # Line number. if (arg == "l") return "$2" # Depth. if (arg == "d") return "$3" # Name (also available as $0). if (arg == "n") return "$4" # Escaped dollar. if (arg == "$") return "$" # $@, list of quoted effective arguments. if (arg == "@") return "]at([" (separator ? separator : ",") "], $@)[" # $*, list of unquoted effective arguments. if (arg == "*") return "]star([" (separator ? separator : ":") "], $@)[" } function error (message) { print message | "cat >&2" exit 1 } { # Accumulate the whole input. request = request $0 "\n" } END { # Chomp. request = substr (request, 1, length (request) - 1) # The default request is `$f:$l:$n:$*'. colon = index (request, ":") macro = colon ? substr (request, 1, colon - 1) : request request = colon ? substr (request, colon + 1) : "$f:$l:$n:$*" res = "" for (cp = request; cp; cp = substr (cp, 2)) { char = substr (cp, 1, 1) if (char == "$") { if (match (cp, /^\$[0-9]+/)) { # $n -> $(n + 4) res = res "$" (substr (cp, 2, RLENGTH - 1) + 4) cp = substr (cp, RLENGTH) } else if (substr (cp, 2, 1) ~ /[fldn$@*]/) { # $x, no separator given. res = res trans(substr (cp, 2, 1)) cp = substr (cp, 2) } else if (substr (cp, 2, 1) == "{") { # ${sep}x, long separator. end = index (cp, "}") if (!end) error("invalid escape: " cp) separator = substr (cp, 3, end - 3) if (substr (cp, end + 1, 1) ~ /[*@]/) res = res trans(substr (cp, end + 1, 1), separator) else error("invalid escape: " cp) cp = substr (cp, end + 1) } else if (substr (cp, 3, 1) ~ /[$@]/) { # $sx, short separator `s'. res = res trans(substr (cp, 3, 1), substr (cp, 2, 1)) cp = substr(cp, 3) } else { error("invalid escape: " substr (cp, 1, 2)) } } else res = res char } # Produce the definition of AT_ = the translation of the request. print "define([AT_" macro "], [[" res "]])" close("cat >&2") } EOF # Extract both the m4 program and the m4 options from TRACES. eval set dummy "$traces" shift for trace do # The request may be several lines long, hence sed has to quit. trace_opt="$trace_opt -t "`echo "$trace" | sed -e 's/:.*//;q'` echo "$trace" | $AWK -f $tmp/translate.awk >>$tmp/trace.m4 || exit 1 done echo "divert(0)dnl" >>$tmp/trace.m4 # Do we trace the initialization? if $initialization; then run_m4_trace="$run_m4 $trace_opt -daflq $tmp/silent.m4" else run_m4_trace="$run_m4f $trace_opt -daflq $tmp/silent.m4" fi # Run m4 on the input file to get traces. $verbose "Running $run_m4_trace $infile | $M4 $tmp/trace.m4" >&2 $run_m4_trace $infile 2>&1 >/dev/null | sed -e 's/^m4trace:\([^:][^:]*\):\([0-9][0-9]*\): -\([0-9][0-9]*\)- \([^(][^(]*\)(\(.*\)$/AT_\4([\1], [\2], [\3], [\4], \5/' \ -e 's/^m4trace:\([^:][^:]*\):\([0-9][0-9]*\): -\([0-9][0-9]*\)- \(.*\)$/AT_\4([\1], [\2], [\3], [\4])/' | # Now we are ready to run m4 to process the trace file. $M4 $tmp/trace.m4 - | # It makes no sense to try to transform __oline__. sed ' s/@<:@/[/g s/@:>@/]/g s/@S|@/$/g s/@%:@/#/g ' >&4 ;; ## -------------------------------------------------------- ## ## Task --install. Install links to the library m4 files. ## ## -------------------------------------------------------- ## install) # An m4 program that reports what macros are requested, and where # they were defined. cat >$tmp/request.m4 <<\EOF dnl Keep the definition of the old AC_DEFUN define([AC_DEFUN_OLD], defn([AC_DEFUN])) dnl Define the macro so that the first time it is expanded, it reports dnl on stderr its name, and where it was defined. define([AC_DEFUN], [AC_DEFUN_OLD([$1], [ifdef([AC_DECLARED{$1}],, [define([AC_DECLARED{$1}])errprint(]]__file__:__line__:[[ [$1] )])dnl ][$2])]) dnl All the includes must be disabled. If they are not, since people don't dnl protect the first argument of AC_DEFUN, then, if read a second time dnl this argument will be expanded, and we'll get pure junk out of m4. define([AC_INCLUDE]) EOF # Run m4 with all the library files, discard stdout, save stderr in # $requested. run_m4_request="$run_m4f -dipa -t m4_include -t m4_sinclude $tmp/request.m4" $verbose $run_m4_request $localdir/*.m4 $AC_ACLOCALDIR/*.m4 $infile >&2 $run_m4_request $localdir/*.m4 $AC_ACLOCALDIR/*.m4 $infile 2>&1 >/dev/null | # Keep only the good lines, there may be other outputs grep '^[^: ]*:[0-9][0-9]*:[^:]*$' >$tmp/requested # Extract the files that are not in the local dir, and install the links. # Save in `installed' the list of installed links. $verbose "Required macros:" >&2 $verbose "`sed -e 's/^/| /' $tmp/requested`" >&2 cat $tmp/requested | while read line do file=`echo "$line" | sed -e 's/:.*//'` filename=`echo "$file" | sed -e 's,.*/,,'` macro=`echo "$line" | sed -e 's/.*:[ ]*//'` if test -f "$file" && test "x$file" != "x$infile"; then if test -f $localdir/$filename; then $verbose "$filename already installed" >&2 else $verbose "installing $file which provides $macro" >&2 ln -s "$file" "$localdir/$filename" || cp "$file" "$localdir/$filename" || { echo "$me: cannot link from $file to $localdir/$filename" >&2 exit 1 } fi echo "$localdir/$filename" >>$tmp/installed fi done # Now that we have installed the links, and that we know that the # user needs the FILES, check that there is an exact correspondence. # Use yourself to get the list of the included files. export AC_ACLOCALDIR export AC_MACRODIR # Not m4_s?include, because it would catch acsite and aclocal, which # we don't care about. $0 -l "$localdir" -t AC_INCLUDE:'$1' $infile | sort | uniq >$tmp/included # All the included files are needed. for file in `cat $tmp/included`; do if fgrep "$file" $tmp/installed >/dev/null 2>&1; then :; else echo "\`$file' is uselessly included" >&2 fi done # All the needed files are included. for file in `sort $tmp/installed | uniq`; do if fgrep "$file" $tmp/included >/dev/null 2>&1; then :; else echo "\`$file' is not included" >&2 fi done ;; ## ------------ ## ## Unknown task ## ## ------------ ## *)echo "$me: internal error: unknown task: $task" >&2 exit 1 esac exit $status