#! @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: $0 [OPTION] ... [TEMPLATE-FILE] Generate a configuration script from a TEMPLATE-FILE if given, or \`configure.in' by default. Output is sent to the standard output if TEMPLATE-FILE is given, else into \`configure'. Operation modes: -h, --help print this help, then exit -V, --version print version number, then exit -v, --verbose verbosely report processing -d, --debug don't remove temporary files -m, --macrodir=DIR directory storing Autoconf's macro files -l, --localdir=DIR directory storing the \`aclocal.m4' file -o, --output=FILE save output in FILE (stdout is the default) -W, --warnings=CATEGORY report the warnings falling in CATEGORY [syntax] Warning categories include: \`cross' cross compilation issues \`obsolete' obsolete constructs \`syntax' dubious syntactic constructs \`all' all the warnings \`noCATEGORY' turn off the warnings on CATEGORY \`none' turn off all the warnings \`error' warnings are error The environment variable \`WARNINGS' is honored. Tracing: -t, --trace=MACRO report the list of calls to MACRO -i, --initialization also trace Autoconf's initialization process In tracing mode, no configuration script is created. Report bugs to ." version="\ autoconf (GNU @PACKAGE@) @VERSION@ Written by David J. MacKenzie. Copyright (C) 1992, 93, 94, 96, 99, 2000 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help="\ Try \`$me --help' for more information." exit_missing_arg="\ echo \"$me: option \\\`\$1' requires an argument\" >&2 echo \"\$help\" >&2 exit 1" # NLS nuisances. # Only set these to C if already set. These must not be set unconditionally # because not all systems understand e.g. LANG=C (notably SCO). # Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'! # Non-C LC_CTYPE values break the ctype check. if test "${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: # - 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 optarg=`expr "$1" : '--[^=]*=\(.*\)' \| \ "$1" : '-.\(.*\)'` case $1 in --version | --vers* | -V ) echo "$version" ; exit 0 ;; --help | --h* | -h ) echo "$usage"; exit 0 ;; --debug | --d* | -d ) debug=:; shift ;; --verbose | --verb* | -v ) verbose=echo shift;; --localdir=* | --l*=* ) localdir=$optarg shift ;; --localdir | --l* | -l ) test $# = 1 && eval "$exit_missing_arg" shift localdir=$1 shift ;; --macrodir=* | --m*=* ) AC_MACRODIR=$optarg shift ;; --macrodir | --m* | -m ) test $# = 1 && eval "$exit_missing_arg" shift AC_MACRODIR=$1 shift ;; --trace | -t ) test $# = 1 && eval "$exit_missing_arg" task=trace shift traces="$traces '"`echo "$1" | sed "s/'/'\\\\\\\\''/g"`"'" shift ;; --trace=* ) task=trace traces="$traces '"`echo "$optarg" | sed "s/'/'\\\\\\\\''/g"`"'" shift ;; --initialization | -i ) initialization=: shift;; --output | -o ) test $# = 1 && eval "$exit_missing_arg" shift outfile=$1 shift ;; --output=* ) outfile=$optarg shift ;; -o* ) outfile=$optarg shift ;; --warnings | -W ) test $# = 1 && eval "$exit_missing_arg" shift warnings=$warnings,$1 shift ;; --warnings=* ) warnings=$warnings,$optarg shift ;; -W* ) # People are used to -Wall, -Werror etc. warnings=$warnings,$optarg shift ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) exec >&2 echo "$me: invalid option $1" echo "$help" exit 1 ;; * ) break ;; esac done # The warnings are the concatenation of 1. application's defaults, # 2. $WARNINGS, $3 command line options, in that order. # Set them in the order expected by the M4 macros: the converse. _ac_warnings= for warning in `IFS=,; echo syntax,$WARNINGS,$warnings | tr 'A-Z' 'a-z'` do test -n $warning || continue _ac_warnings="$warning"`test -n "$_ac_warnings" && echo ",$_ac_warnings"` done # Trap on 0 to stop playing with `rm'. $debug || { trap 'status=$?; rm -rf $tmp && exit $status' 0 trap 'exit $?' 1 2 13 15 } # Create a (secure) tmp directory for tmp files. : ${TMPDIR=/tmp} { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/acXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" } || { tmp=$TMPDIR/ac$$ && (umask 077 && mkdir $tmp) } || { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 exit 1; } # Running m4. test -f "$AC_MACRODIR/acsite.m4" && acsite_m4="$AC_MACRODIR/acsite.m4" test -f "$localdir/aclocal.m4" && aclocal_m4="$localdir/aclocal.m4" m4_common="$acsite_m4 $aclocal_m4 -I $AC_MACRODIR -I $localdir" run_m4="$M4 $AC_MACRODIR/autoconf.m4 $m4_common" run_m4f="$M4 --reload $AC_MACRODIR/autoconf.m4f $m4_common" # Find the input file. case $# in 0) infile=configure.in test $task = script && test -z "$outfile" && outfile=configure;; 1) infile=$1 ;; *) exec >&2 echo "$me: invalid number of arguments." echo "$help" exit 1 ;; esac # Unless specified, the output is stdout. test -z "$outfile" && outfile=- # 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-) # Output to stdout exec 4>&1 ;; * ) exec 4>$outfile;; esac # Initializations are performed. Proceed to the main task. case $task in ## --------------------------------- ## ## Generate the `configure' script. ## ## --------------------------------- ## script) # M4 expansion. $run_m4f -D_AC_WARNINGS=$_ac_warnings $infile >$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*** $macro" done | sort -u >&2 status=1 fi if test "x$outfile" != x-; 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++ if ($0 ~ /__oline__/) while (sub(/__oline__/, oline)) continue while (sub(/@<:@/, "[")) continue while (sub(/@:>@/, "]")) continue while (sub(/@S\|@/, "$")) continue while (sub(/@%:@/, "#")) continue print }' <$tmp/configure >&4 ;; # End of the task script. ## -------------- ## ## Trace macros. ## ## -------------- ## trace) # trace.m4 # -------- # Routines to process formatted m4 traces. cat >$tmp/trace.m4 <<\EOF divert(-1) changequote([, ]) # _MODE(SEPARATOR, ELT1, ELT2...) # ------------------------------- # List the elements, separating then with SEPARATOR. # MODE can be: # `at' -- the elements are enclosed in brackets. # `star' -- the elements are listed as are. # `percent' -- the elements are `smashed': spaces are singled out, # and no new line remains. define([_at], [ifelse([$#], [1], [], [$#], [2], [[[$2]]], [[[$2]][$1]$0([$1], shift(shift($@)))])]) define([_percent], [ifelse([$#], [1], [], [$#], [2], [smash([$2])], [smash([$2])[$1]$0([$1], shift(shift($@)))])]) define([_star], [ifelse([$#], [1], [], [$#], [2], [[$2]], [[$2][$1]$0([$1], shift(shift($@)))])]) # Smash quotes its result. define([smash], [patsubst(patsubst(patsubst([[[$1]]], [\\ ]), [[ ]+], [ ]), [^ *\(.*\) *$], [[\1]])]) define([args], [shift(shift(shift(shift(shift($@)))))]) define([at], [_$0([$1], args($@))]) define([percent], [_$0([$1], args($@))]) define([star], [_$0([$1], args($@))]) EOF # trace2m4.sed # ------------ # Transform the traces from m4 into an m4 input file. # Typically, transform: # | m4trace:configure.in:3: -1- AC_SUBST([exec_prefix], [NONE]) # into # | AT_AC_SUBST([configure.in], [3], [1], [AC_SUBST], [exec_prefix], [NONE]) # Pay attention that the file name might include colons, if under DOS # for instance, so we don't use `[^:][^:]*'. # The first s/// catches multiline traces, the second, traces as above. preamble='m4trace:\(..*\):\([0-9][0-9]*\): -\([0-9][0-9]*\)-' cat >$tmp/trace2m4.sed <$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 : ",") "], $@)[" # $%, list of smashed unquoted effective arguments. if (arg == "%") return "]percent([" (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? # `errprint' must be silent, otherwise there can be warnings mixed # with traces in m4's stderr. if $initialization; then run_m4_trace="$run_m4 $trace_opt -daflq -Derrprint" else run_m4_trace="$run_m4f $trace_opt -daflq -Derrprint" fi # Run m4 on the input file to get traces. $verbose "$me: running $run_m4_trace $infile | $M4 $tmp/trace.m4" >&2 $run_m4_trace $infile 2>&1 >/dev/null | sed -f $tmp/trace2m4.sed | # 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 ;; ## ------------ ## ## Unknown task ## ## ------------ ## *)echo "$me: internal error: unknown task: $task" >&2 exit 1 esac exit $status