aclocal.m4 revision 106163
1# ./aclocal.m4 generated automatically by aclocal 1.5
2
3# Copyright 1996, 1997, 1998, 1999, 2000, 2001
4# Free Software Foundation, Inc.
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14AC_DEFUN(hs_ULONG_CONST,
15[ AC_EGREP_CPP(Circus,
16 [#define ACAT(a,b)a ## b
17ACAT(Cir,cus)
18], AC_DEFINE([ULONG_CONST(a)], [a ## UL]),
19    AC_EGREP_CPP(Reiser,
20[#define RCAT(a,b)a/**/b
21RCAT(Rei,ser)
22], AC_DEFINE([ULONG_CONST(a)], [a/**/L]),
23    AC_MSG_ERROR([How do we create an unsigned long constant?])))])
24dnl @synopsis AC_DEFINE_DIR(VARNAME, DIR [, DESCRIPTION])
25dnl
26dnl This macro defines (with AC_DEFINE) VARNAME to the expansion of the DIR
27dnl variable, taking care of fixing up ${prefix} and such.
28dnl
29dnl Note that the 3 argument form is only supported with autoconf 2.13 and
30dnl later (i.e. only where AC_DEFINE supports 3 arguments).
31dnl
32dnl Examples:
33dnl
34dnl    AC_DEFINE_DIR(DATADIR, datadir)
35dnl    AC_DEFINE_DIR(PROG_PATH, bindir, [Location of installed binaries])
36dnl
37dnl @version $Id$
38dnl @author Alexandre Oliva <oliva@lsd.ic.unicamp.br>
39
40AC_DEFUN(AC_DEFINE_DIR, [
41	ac_expanded=`(
42	    test "x$prefix" = xNONE && prefix="$ac_default_prefix"
43	    test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
44	    eval echo \""[$]$2"\"
45        )`
46	ifelse($3, ,
47	  AC_DEFINE_UNQUOTED($1, "$ac_expanded"),
48	  AC_DEFINE_UNQUOTED($1, "$ac_expanded", $3))
49])
50
51# Like AC_CONFIG_HEADER, but automatically create stamp file.
52
53# serial 3
54
55# When config.status generates a header, we must update the stamp-h file.
56# This file resides in the same directory as the config header
57# that is generated.  We must strip everything past the first ":",
58# and everything past the last "/".
59
60AC_PREREQ([2.12])
61
62AC_DEFUN([AM_CONFIG_HEADER],
63[ifdef([AC_FOREACH],dnl
64	 [dnl init our file count if it isn't already
65	 m4_ifndef([_AM_Config_Header_Index], m4_define([_AM_Config_Header_Index], [0]))
66	 dnl prepare to store our destination file list for use in config.status
67	 AC_FOREACH([_AM_File], [$1],
68		    [m4_pushdef([_AM_Dest], m4_patsubst(_AM_File, [:.*]))
69		    m4_define([_AM_Config_Header_Index], m4_incr(_AM_Config_Header_Index))
70		    dnl and add it to the list of files AC keeps track of, along
71		    dnl with our hook
72		    AC_CONFIG_HEADERS(_AM_File,
73dnl COMMANDS, [, INIT-CMDS]
74[# update the timestamp
75echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h]_AM_Config_Header_Index["
76][$2]m4_ifval([$3], [, [$3]]))dnl AC_CONFIG_HEADERS
77		    m4_popdef([_AM_Dest])])],dnl
78[AC_CONFIG_HEADER([$1])
79  AC_OUTPUT_COMMANDS(
80   ifelse(patsubst([$1], [[^ ]], []),
81	  [],
82	  [test -z "$CONFIG_HEADERS" || echo timestamp >dnl
83	   patsubst([$1], [^\([^:]*/\)?.*], [\1])stamp-h]),dnl
84[am_indx=1
85for am_file in $1; do
86  case " \$CONFIG_HEADERS " in
87  *" \$am_file "*)
88    am_dir=\`echo \$am_file |sed 's%:.*%%;s%[^/]*\$%%'\`
89    if test -n "\$am_dir"; then
90      am_tmpdir=\`echo \$am_dir |sed 's%^\(/*\).*\$%\1%'\`
91      for am_subdir in \`echo \$am_dir |sed 's%/% %'\`; do
92        am_tmpdir=\$am_tmpdir\$am_subdir/
93        if test ! -d \$am_tmpdir; then
94          mkdir \$am_tmpdir
95        fi
96      done
97    fi
98    echo timestamp > "\$am_dir"stamp-h\$am_indx
99    ;;
100  esac
101  am_indx=\`expr \$am_indx + 1\`
102done])
103])]) # AM_CONFIG_HEADER
104
105# _AM_DIRNAME(PATH)
106# -----------------
107# Like AS_DIRNAME, only do it during macro expansion
108AC_DEFUN([_AM_DIRNAME],
109       [m4_if(m4_regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,
110	      m4_if(m4_regexp([$1], [^//\([^/]\|$\)]), -1,
111		    m4_if(m4_regexp([$1], [^/.*]), -1,
112			  [.],
113			  m4_patsubst([$1], [^\(/\).*], [\1])),
114		    m4_patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),
115	      m4_patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl
116]) # _AM_DIRNAME
117
118# Do all the work for Automake.  This macro actually does too much --
119# some checks are only needed if your package does certain things.
120# But this isn't really a big deal.
121
122# serial 5
123
124# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
125# written in clear, in which case automake, when reading aclocal.m4,
126# will think it sees a *use*, and therefore will trigger all it's
127# C support machinery.  Also note that it means that autoscan, seeing
128# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
129
130
131# We require 2.13 because we rely on SHELL being computed by configure.
132AC_PREREQ([2.13])
133
134# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
135# -----------------------------------------------------------
136# If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED.
137# The purpose of this macro is to provide the user with a means to
138# check macros which are provided without letting her know how the
139# information is coded.
140# If this macro is not defined by Autoconf, define it here.
141ifdef([AC_PROVIDE_IFELSE],
142      [],
143      [define([AC_PROVIDE_IFELSE],
144              [ifdef([AC_PROVIDE_$1],
145                     [$2], [$3])])])
146
147
148# AM_INIT_AUTOMAKE(PACKAGE,VERSION, [NO-DEFINE])
149# ----------------------------------------------
150AC_DEFUN([AM_INIT_AUTOMAKE],
151[AC_REQUIRE([AC_PROG_INSTALL])dnl
152# test to see if srcdir already configured
153if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" &&
154   test -f $srcdir/config.status; then
155  AC_MSG_ERROR([source directory already configured; run \"make distclean\" there first])
156fi
157
158# Define the identity of the package.
159PACKAGE=$1
160AC_SUBST(PACKAGE)dnl
161VERSION=$2
162AC_SUBST(VERSION)dnl
163ifelse([$3],,
164[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
165AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])
166
167# Autoconf 2.50 wants to disallow AM_ names.  We explicitly allow
168# the ones we care about.
169ifdef([m4_pattern_allow],
170      [m4_pattern_allow([^AM_[A-Z]+FLAGS])])dnl
171
172# Autoconf 2.50 always computes EXEEXT.  However we need to be
173# compatible with 2.13, for now.  So we always define EXEEXT, but we
174# don't compute it.
175AC_SUBST(EXEEXT)
176# Similar for OBJEXT -- only we only use OBJEXT if the user actually
177# requests that it be used.  This is a bit dumb.
178: ${OBJEXT=o}
179AC_SUBST(OBJEXT)
180
181# Some tools Automake needs.
182AC_REQUIRE([AM_SANITY_CHECK])dnl
183AC_REQUIRE([AC_ARG_PROGRAM])dnl
184AM_MISSING_PROG(ACLOCAL, aclocal)
185AM_MISSING_PROG(AUTOCONF, autoconf)
186AM_MISSING_PROG(AUTOMAKE, automake)
187AM_MISSING_PROG(AUTOHEADER, autoheader)
188AM_MISSING_PROG(MAKEINFO, makeinfo)
189AM_MISSING_PROG(AMTAR, tar)
190AM_PROG_INSTALL_SH
191AM_PROG_INSTALL_STRIP
192# We need awk for the "check" target.  The system "awk" is bad on
193# some platforms.
194AC_REQUIRE([AC_PROG_AWK])dnl
195AC_REQUIRE([AC_PROG_MAKE_SET])dnl
196AC_REQUIRE([AM_DEP_TRACK])dnl
197AC_REQUIRE([AM_SET_DEPDIR])dnl
198AC_PROVIDE_IFELSE([AC_PROG_][CC],
199                  [_AM_DEPENDENCIES(CC)],
200                  [define([AC_PROG_][CC],
201                          defn([AC_PROG_][CC])[_AM_DEPENDENCIES(CC)])])dnl
202AC_PROVIDE_IFELSE([AC_PROG_][CXX],
203                  [_AM_DEPENDENCIES(CXX)],
204                  [define([AC_PROG_][CXX],
205                          defn([AC_PROG_][CXX])[_AM_DEPENDENCIES(CXX)])])dnl
206])
207
208#
209# Check to make sure that the build environment is sane.
210#
211
212# serial 3
213
214# AM_SANITY_CHECK
215# ---------------
216AC_DEFUN([AM_SANITY_CHECK],
217[AC_MSG_CHECKING([whether build environment is sane])
218# Just in case
219sleep 1
220echo timestamp > conftest.file
221# Do `set' in a subshell so we don't clobber the current shell's
222# arguments.  Must try -L first in case configure is actually a
223# symlink; some systems play weird games with the mod time of symlinks
224# (eg FreeBSD returns the mod time of the symlink's containing
225# directory).
226if (
227   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
228   if test "$[*]" = "X"; then
229      # -L didn't work.
230      set X `ls -t $srcdir/configure conftest.file`
231   fi
232   rm -f conftest.file
233   if test "$[*]" != "X $srcdir/configure conftest.file" \
234      && test "$[*]" != "X conftest.file $srcdir/configure"; then
235
236      # If neither matched, then we have a broken ls.  This can happen
237      # if, for instance, CONFIG_SHELL is bash and it inherits a
238      # broken ls alias from the environment.  This has actually
239      # happened.  Such a system could not be considered "sane".
240      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
241alias in your environment])
242   fi
243
244   test "$[2]" = conftest.file
245   )
246then
247   # Ok.
248   :
249else
250   AC_MSG_ERROR([newly created file is older than distributed files!
251Check your system clock])
252fi
253AC_MSG_RESULT(yes)])
254
255
256# serial 2
257
258# AM_MISSING_PROG(NAME, PROGRAM)
259# ------------------------------
260AC_DEFUN([AM_MISSING_PROG],
261[AC_REQUIRE([AM_MISSING_HAS_RUN])
262$1=${$1-"${am_missing_run}$2"}
263AC_SUBST($1)])
264
265
266# AM_MISSING_HAS_RUN
267# ------------------
268# Define MISSING if not defined so far and test if it supports --run.
269# If it does, set am_missing_run to use it, otherwise, to nothing.
270AC_DEFUN([AM_MISSING_HAS_RUN],
271[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
272test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
273# Use eval to expand $SHELL
274if eval "$MISSING --run true"; then
275  am_missing_run="$MISSING --run "
276else
277  am_missing_run=
278  am_backtick='`'
279  AC_MSG_WARN([${am_backtick}missing' script is too old or missing])
280fi
281])
282
283# AM_AUX_DIR_EXPAND
284
285# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
286# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
287# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
288#
289# Of course, Automake must honor this variable whenever it calls a
290# tool from the auxiliary directory.  The problem is that $srcdir (and
291# therefore $ac_aux_dir as well) can be either absolute or relative,
292# depending on how configure is run.  This is pretty annoying, since
293# it makes $ac_aux_dir quite unusable in subdirectories: in the top
294# source directory, any form will work fine, but in subdirectories a
295# relative path needs to be adjusted first.
296#
297# $ac_aux_dir/missing
298#    fails when called from a subdirectory if $ac_aux_dir is relative
299# $top_srcdir/$ac_aux_dir/missing
300#    fails if $ac_aux_dir is absolute,
301#    fails when called from a subdirectory in a VPATH build with
302#          a relative $ac_aux_dir
303#
304# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
305# are both prefixed by $srcdir.  In an in-source build this is usually
306# harmless because $srcdir is `.', but things will broke when you
307# start a VPATH build or use an absolute $srcdir.
308#
309# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
310# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
311#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
312# and then we would define $MISSING as
313#   MISSING="\${SHELL} $am_aux_dir/missing"
314# This will work as long as MISSING is not called from configure, because
315# unfortunately $(top_srcdir) has no meaning in configure.
316# However there are other variables, like CC, which are often used in
317# configure, and could therefore not use this "fixed" $ac_aux_dir.
318#
319# Another solution, used here, is to always expand $ac_aux_dir to an
320# absolute PATH.  The drawback is that using absolute paths prevent a
321# configured tree to be moved without reconfiguration.
322
323AC_DEFUN([AM_AUX_DIR_EXPAND], [
324# expand $ac_aux_dir to an absolute path
325am_aux_dir=`CDPATH=:; cd $ac_aux_dir && pwd`
326])
327
328# AM_PROG_INSTALL_SH
329# ------------------
330# Define $install_sh.
331AC_DEFUN([AM_PROG_INSTALL_SH],
332[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
333install_sh=${install_sh-"$am_aux_dir/install-sh"}
334AC_SUBST(install_sh)])
335
336# One issue with vendor `install' (even GNU) is that you can't
337# specify the program used to strip binaries.  This is especially
338# annoying in cross-compiling environments, where the build's strip
339# is unlikely to handle the host's binaries.
340# Fortunately install-sh will honor a STRIPPROG variable, so we
341# always use install-sh in `make install-strip', and initialize
342# STRIPPROG with the value of the STRIP variable (set by the user).
343AC_DEFUN([AM_PROG_INSTALL_STRIP],
344[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
345INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
346AC_SUBST([INSTALL_STRIP_PROGRAM])])
347
348# serial 4						-*- Autoconf -*-
349
350
351
352# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
353# written in clear, in which case automake, when reading aclocal.m4,
354# will think it sees a *use*, and therefore will trigger all it's
355# C support machinery.  Also note that it means that autoscan, seeing
356# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
357
358
359
360# _AM_DEPENDENCIES(NAME)
361# ---------------------
362# See how the compiler implements dependency checking.
363# NAME is "CC", "CXX" or "OBJC".
364# We try a few techniques and use that to set a single cache variable.
365#
366# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
367# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
368# dependency, and given that the user is not expected to run this macro,
369# just rely on AC_PROG_CC.
370AC_DEFUN([_AM_DEPENDENCIES],
371[AC_REQUIRE([AM_SET_DEPDIR])dnl
372AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
373AC_REQUIRE([AM_MAKE_INCLUDE])dnl
374AC_REQUIRE([AM_DEP_TRACK])dnl
375
376ifelse([$1], CC,   [depcc="$CC"   am_compiler_list=],
377       [$1], CXX,  [depcc="$CXX"  am_compiler_list=],
378       [$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc']
379       [$1], GCJ,  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
380                   [depcc="$$1"   am_compiler_list=])
381
382AC_CACHE_CHECK([dependency style of $depcc],
383               [am_cv_$1_dependencies_compiler_type],
384[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
385  # We make a subdir and do the tests there.  Otherwise we can end up
386  # making bogus files that we don't know about and never remove.  For
387  # instance it was reported that on HP-UX the gcc test will end up
388  # making a dummy file named `D' -- because `-MD' means `put the output
389  # in D'.
390  mkdir conftest.dir
391  # Copy depcomp to subdir because otherwise we won't find it if we're
392  # using a relative directory.
393  cp "$am_depcomp" conftest.dir
394  cd conftest.dir
395
396  am_cv_$1_dependencies_compiler_type=none
397  if test "$am_compiler_list" = ""; then
398     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
399  fi
400  for depmode in $am_compiler_list; do
401    # We need to recreate these files for each test, as the compiler may
402    # overwrite some of them when testing with obscure command lines.
403    # This happens at least with the AIX C compiler.
404    echo '#include "conftest.h"' > conftest.c
405    echo 'int i;' > conftest.h
406    echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
407
408    case $depmode in
409    nosideeffect)
410      # after this tag, mechanisms are not by side-effect, so they'll
411      # only be used when explicitly requested
412      if test "x$enable_dependency_tracking" = xyes; then
413	continue
414      else
415	break
416      fi
417      ;;
418    none) break ;;
419    esac
420    # We check with `-c' and `-o' for the sake of the "dashmstdout"
421    # mode.  It turns out that the SunPro C++ compiler does not properly
422    # handle `-M -o', and we need to detect this.
423    if depmode=$depmode \
424       source=conftest.c object=conftest.o \
425       depfile=conftest.Po tmpdepfile=conftest.TPo \
426       $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
427       grep conftest.h conftest.Po > /dev/null 2>&1 &&
428       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
429      am_cv_$1_dependencies_compiler_type=$depmode
430      break
431    fi
432  done
433
434  cd ..
435  rm -rf conftest.dir
436else
437  am_cv_$1_dependencies_compiler_type=none
438fi
439])
440$1DEPMODE="depmode=$am_cv_$1_dependencies_compiler_type"
441AC_SUBST([$1DEPMODE])
442])
443
444
445# AM_SET_DEPDIR
446# -------------
447# Choose a directory name for dependency files.
448# This macro is AC_REQUIREd in _AM_DEPENDENCIES
449AC_DEFUN([AM_SET_DEPDIR],
450[rm -f .deps 2>/dev/null
451mkdir .deps 2>/dev/null
452if test -d .deps; then
453  DEPDIR=.deps
454else
455  # MS-DOS does not allow filenames that begin with a dot.
456  DEPDIR=_deps
457fi
458rmdir .deps 2>/dev/null
459AC_SUBST(DEPDIR)
460])
461
462
463# AM_DEP_TRACK
464# ------------
465AC_DEFUN([AM_DEP_TRACK],
466[AC_ARG_ENABLE(dependency-tracking,
467[  --disable-dependency-tracking Speeds up one-time builds
468  --enable-dependency-tracking  Do not reject slow dependency extractors])
469if test "x$enable_dependency_tracking" != xno; then
470  am_depcomp="$ac_aux_dir/depcomp"
471  AMDEPBACKSLASH='\'
472fi
473AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
474pushdef([subst], defn([AC_SUBST]))
475subst(AMDEPBACKSLASH)
476popdef([subst])
477])
478
479# Generate code to set up dependency tracking.
480# This macro should only be invoked once -- use via AC_REQUIRE.
481# Usage:
482# AM_OUTPUT_DEPENDENCY_COMMANDS
483
484#
485# This code is only required when automatic dependency tracking
486# is enabled.  FIXME.  This creates each `.P' file that we will
487# need in order to bootstrap the dependency handling code.
488AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],[
489AC_OUTPUT_COMMANDS([
490test x"$AMDEP_TRUE" != x"" ||
491for mf in $CONFIG_FILES; do
492  case "$mf" in
493  Makefile) dirpart=.;;
494  */Makefile) dirpart=`echo "$mf" | sed -e 's|/[^/]*$||'`;;
495  *) continue;;
496  esac
497  grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
498  # Extract the definition of DEP_FILES from the Makefile without
499  # running `make'.
500  DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
501  test -z "$DEPDIR" && continue
502  # When using ansi2knr, U may be empty or an underscore; expand it
503  U=`sed -n -e '/^U = / s///p' < "$mf"`
504  test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
505  # We invoke sed twice because it is the simplest approach to
506  # changing $(DEPDIR) to its actual value in the expansion.
507  for file in `sed -n -e '
508    /^DEP_FILES = .*\\\\$/ {
509      s/^DEP_FILES = //
510      :loop
511	s/\\\\$//
512	p
513	n
514	/\\\\$/ b loop
515      p
516    }
517    /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
518       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
519    # Make sure the directory exists.
520    test -f "$dirpart/$file" && continue
521    fdir=`echo "$file" | sed -e 's|/[^/]*$||'`
522    $ac_aux_dir/mkinstalldirs "$dirpart/$fdir" > /dev/null 2>&1
523    # echo "creating $dirpart/$file"
524    echo '# dummy' > "$dirpart/$file"
525  done
526done
527], [AMDEP_TRUE="$AMDEP_TRUE"
528ac_aux_dir="$ac_aux_dir"])])
529
530# AM_MAKE_INCLUDE()
531# -----------------
532# Check to see how make treats includes.
533AC_DEFUN([AM_MAKE_INCLUDE],
534[am_make=${MAKE-make}
535cat > confinc << 'END'
536doit:
537	@echo done
538END
539# If we don't find an include directive, just comment out the code.
540AC_MSG_CHECKING([for style of include used by $am_make])
541am__include='#'
542am__quote=
543_am_result=none
544# First try GNU make style include.
545echo "include confinc" > confmf
546# We grep out `Entering directory' and `Leaving directory'
547# messages which can occur if `w' ends up in MAKEFLAGS.
548# In particular we don't look at `^make:' because GNU make might
549# be invoked under some other name (usually "gmake"), in which
550# case it prints its new name instead of `make'.
551if test "`$am_make -s -f confmf 2> /dev/null | fgrep -v 'ing directory'`" = "done"; then
552   am__include=include
553   am__quote=
554   _am_result=GNU
555fi
556# Now try BSD make style include.
557if test "$am__include" = "#"; then
558   echo '.include "confinc"' > confmf
559   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
560      am__include=.include
561      am__quote='"'
562      _am_result=BSD
563   fi
564fi
565AC_SUBST(am__include)
566AC_SUBST(am__quote)
567AC_MSG_RESULT($_am_result)
568rm -f confinc confmf
569])
570
571# serial 3
572
573# AM_CONDITIONAL(NAME, SHELL-CONDITION)
574# -------------------------------------
575# Define a conditional.
576#
577# FIXME: Once using 2.50, use this:
578# m4_match([$1], [^TRUE\|FALSE$], [AC_FATAL([$0: invalid condition: $1])])dnl
579AC_DEFUN([AM_CONDITIONAL],
580[ifelse([$1], [TRUE],
581        [errprint(__file__:__line__: [$0: invalid condition: $1
582])dnl
583m4exit(1)])dnl
584ifelse([$1], [FALSE],
585       [errprint(__file__:__line__: [$0: invalid condition: $1
586])dnl
587m4exit(1)])dnl
588AC_SUBST([$1_TRUE])
589AC_SUBST([$1_FALSE])
590if $2; then
591  $1_TRUE=
592  $1_FALSE='#'
593else
594  $1_TRUE='#'
595  $1_FALSE=
596fi])
597
598
599# serial 1
600
601AC_DEFUN([AM_C_PROTOTYPES],
602[AC_REQUIRE([AM_PROG_CC_STDC])
603AC_REQUIRE([AC_PROG_CPP])
604AC_MSG_CHECKING([for function prototypes])
605if test "$am_cv_prog_cc_stdc" != no; then
606  AC_MSG_RESULT(yes)
607  AC_DEFINE(PROTOTYPES,1,[Define if compiler has function prototypes])
608  U= ANSI2KNR=
609else
610  AC_MSG_RESULT(no)
611  U=_ ANSI2KNR=./ansi2knr
612fi
613# Ensure some checks needed by ansi2knr itself.
614AC_HEADER_STDC
615AC_CHECK_HEADERS(string.h)
616AC_SUBST(U)dnl
617AC_SUBST(ANSI2KNR)dnl
618])
619
620
621# serial 1
622
623# @defmac AC_PROG_CC_STDC
624# @maindex PROG_CC_STDC
625# @ovindex CC
626# If the C compiler in not in ANSI C mode by default, try to add an option
627# to output variable @code{CC} to make it so.  This macro tries various
628# options that select ANSI C on some system or another.  It considers the
629# compiler to be in ANSI C mode if it handles function prototypes correctly.
630#
631# If you use this macro, you should check after calling it whether the C
632# compiler has been set to accept ANSI C; if not, the shell variable
633# @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
634# code in ANSI C, you can make an un-ANSIfied copy of it by using the
635# program @code{ansi2knr}, which comes with Ghostscript.
636# @end defmac
637
638AC_DEFUN([AM_PROG_CC_STDC],
639[AC_REQUIRE([AC_PROG_CC])
640AC_BEFORE([$0], [AC_C_INLINE])
641AC_BEFORE([$0], [AC_C_CONST])
642dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
643dnl a magic option to avoid problems with ANSI preprocessor commands
644dnl like #elif.
645dnl FIXME: can't do this because then AC_AIX won't work due to a
646dnl circular dependency.
647dnl AC_BEFORE([$0], [AC_PROG_CPP])
648AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
649AC_CACHE_VAL(am_cv_prog_cc_stdc,
650[am_cv_prog_cc_stdc=no
651ac_save_CC="$CC"
652# Don't try gcc -ansi; that turns off useful extensions and
653# breaks some systems' header files.
654# AIX			-qlanglvl=ansi
655# Ultrix and OSF/1	-std1
656# HP-UX 10.20 and later	-Ae
657# HP-UX older versions	-Aa -D_HPUX_SOURCE
658# SVR4			-Xc -D__EXTENSIONS__
659for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
660do
661  CC="$ac_save_CC $ac_arg"
662  AC_TRY_COMPILE(
663[#include <stdarg.h>
664#include <stdio.h>
665#include <sys/types.h>
666#include <sys/stat.h>
667/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
668struct buf { int x; };
669FILE * (*rcsopen) (struct buf *, struct stat *, int);
670static char *e (p, i)
671     char **p;
672     int i;
673{
674  return p[i];
675}
676static char *f (char * (*g) (char **, int), char **p, ...)
677{
678  char *s;
679  va_list v;
680  va_start (v,p);
681  s = g (p, va_arg (v,int));
682  va_end (v);
683  return s;
684}
685int test (int i, double x);
686struct s1 {int (*f) (int a);};
687struct s2 {int (*f) (double a);};
688int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
689int argc;
690char **argv;
691], [
692return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
693],
694[am_cv_prog_cc_stdc="$ac_arg"; break])
695done
696CC="$ac_save_CC"
697])
698if test -z "$am_cv_prog_cc_stdc"; then
699  AC_MSG_RESULT([none needed])
700else
701  AC_MSG_RESULT([$am_cv_prog_cc_stdc])
702fi
703case "x$am_cv_prog_cc_stdc" in
704  x|xno) ;;
705  *) CC="$CC $am_cv_prog_cc_stdc" ;;
706esac
707])
708
709