1 # Process this file with autoconf to produce a configure script.
3 # Copyright (C) 1995-2012 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2, or (at your option)
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 AC_INIT([GNU Automake], [1.12a], [bug-automake@gnu.org])
21 AC_CONFIG_SRCDIR([automake.in])
22 AC_CONFIG_AUX_DIR([lib])
24 AM_SILENT_RULES([yes])
29 # Save the AUTOCONF setting before AM_INIT_AUTOMAKE overrides it; this
30 # way we can run Autoconf tests from configure (or from the test
31 # suite) without being bothered by 'missing'. Likewise for autom4te,
32 # autoreconf, autoheader, and autoupdate.
33 AC_SUBST([am_AUTOCONF], ["${AUTOCONF-autoconf}"])
34 AC_SUBST([am_AUTOM4TE], ["${AUTOM4TE-autom4te}"])
35 AC_SUBST([am_AUTORECONF], ["${AUTORECONF-autoreconf}"])
36 AC_SUBST([am_AUTOHEADER], ["${AUTOHEADER-autoheader}"])
37 AC_SUBST([am_AUTOUPDATE], ["${AUTOUPDATE-autoupdate}"])
39 dnl We call AC_PROG_CC in an unusual way, and only for use in our
40 dnl testsuite, so also use 'no-dependencies' and 'no-define' among
41 dnl the automake options to avoid bloating and potential problems.
42 AM_INIT_AUTOMAKE([dist-xz filename-length-max=99 color-tests
43 parallel-tests silent-rules no-define no-dependencies])
45 # The API version is the base version. We must guarantee
46 # compatibility for all releases with the same API version.
47 # Our current rule is that:
48 # * All releases, including the prereleases, in an X.Y series
49 # are compatible. So 1.5.1c is compatible with 1.5.
50 # * Prereleases on the trunk are all incompatible -- 1.5b and 1.5c
52 APIVERSION=`echo "$VERSION" | sed -e 's/^\([[0-9]]*\.[[0-9]]*[[a-z]]*\).*$/\1/'`
53 AC_SUBST([APIVERSION])
55 AC_SUBST([pkgvdatadir], ["\${datadir}/$PACKAGE-$APIVERSION"])
56 AC_SUBST([scriptdir], ["\${pkgvdatadir}"])
57 AC_SUBST([amdir], ["\${pkgvdatadir}/am"])
58 AC_SUBST([automake_acdir], ["\${datadir}/aclocal-$APIVERSION"])
59 AC_SUBST([system_acdir], ["\${datadir}/aclocal"])
61 # $AUTOMAKE and $ACLOCAL are always run after a "cd $top_srcdir",
62 # hence '.' is really what we want for perllibdir, libdir, and acdir.
63 # Use '-I' with aclocal so that our own *.m4 files in m4/ gets included,
64 # not copied, in aclocal.m4.
66 perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/aclocal\" \
67 --automake-acdir=m4 --system-acdir=m4/acdir -I m4"
69 perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/automake\" \
72 AC_PATH_PROG([PERL], [perl])
73 if test -z "$PERL"; then
74 AC_MSG_ERROR([perl not found])
76 # Save details about the selected perl interpreter in config.log.
77 AM_RUN_LOG([$PERL --version])
78 $PERL -e 'require 5.006;' || {
80 [perl 5.6 or better is required; perl 5.8.2 or better
81 is recommended. If you have several perl versions
82 installed, select the one Automake should use using
83 ./configure PERL=/path/to/perl])
86 # We require ithreads support, and version 5.7.2 for CLONE.
87 AC_CACHE_CHECK([whether $PERL supports ithreads], [am_cv_prog_PERL_ithreads],
91 if ($Config{useithreads})
95 require Thread::Queue;
99 exit 1;' >&AS_MESSAGE_LOG_FD 2>&1
101 am_cv_prog_PERL_ithreads=yes
103 am_cv_prog_PERL_ithreads=no
105 if test $am_cv_prog_PERL_ithreads = yes; then
110 AC_SUBST([PERL_THREADS])
112 # The test suite will skip some tests if tex is absent.
113 AC_CHECK_PROG([TEX], [tex], [tex])
114 # Save details about the selected TeX program in config.log.
115 # Redirect input from /dev/null, as TeX might otherwise hang waiting
116 # for input from the terminal.
117 AM_RUN_LOG([$TEX --version </dev/null])
119 # The test suite will skip some tests if no lex or yacc program is
121 # We don't use AC_PROG_LEX nor AC_PROG_YACC here because:
122 # 1. we don't want flex (resp. bison) to be preferred to system lex
123 # (resp. system yacc);
124 # 2. we don't want $LEX (resp. $YACC) to be defined to ':' (resp. 'yacc')
126 # 3. we prefer not to have the variables YFLAGS, LEX_OUTPUT_ROOT and
127 # LEXLIB to be calculated and/or AC_SUBST'd;
128 # 4. we prefer that the YACC and LEX variables are not reported in the
129 # configure help screen.
130 AC_CHECK_PROGS([YACC], [yacc byacc 'bison -y'], [false])
131 AC_CHECK_PROGS([LEX], [lex flex], [false])
133 # Test for Autoconf. We run Autoconf in a subdirectory to ease
134 # deletion of any files created (such as those added to
135 # autom4te.cache). We used to perform only the last of the three
136 # following tests, but some users were unable to figure out that their
137 # installation was broken since --version appeared to work.
139 required_autoconf_version=2.62
140 AC_CACHE_CHECK([whether autoconf is installed], [am_cv_autoconf_installed],
141 [if AM_RUN_LOG([$am_AUTOCONF --version]);
143 am_cv_autoconf_installed=yes
145 am_cv_autoconf_installed=no
147 if test "$am_cv_autoconf_installed" = no; then
148 AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.
149 Please make sure it is installed and in your PATH.])
152 AC_CACHE_CHECK([whether autoconf works], [am_cv_autoconf_works],
154 echo 'AC''_INIT' > conftest/conftest.ac
155 if AM_RUN_LOG([cd conftest && $am_AUTOCONF -o /dev/null conftest.ac]);
157 am_cv_autoconf_works=yes
159 am_cv_autoconf_works=no
162 if test "$am_cv_autoconf_works" = no; then
163 AC_MSG_ERROR([The installed version of autoconf does not work.
164 Please check config.log for error messages before this one.])
167 AC_CACHE_CHECK([whether autoconf is recent enough], [am_cv_autoconf_version],
169 dnl Creative quoting required to avoid spurious expansion of AC_PREREQ macro
170 echo 'AC'"_PREREQ([[$required_autoconf_version]])" > conftest/conftest.ac
171 if AM_RUN_LOG([cd conftest && $am_AUTOCONF -o /dev/null conftest.ac]);
173 am_cv_autoconf_version=yes
175 am_cv_autoconf_version=no
178 if test "$am_cv_autoconf_version" = no; then
179 AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.])
182 # Test for ln. We need use it to install the versioned binaries.
183 AC_MSG_CHECKING([whether ln works])
184 AC_CACHE_VAL([am_cv_prog_ln], [
185 rm -f conftest conftest.file
187 if ln conftest.file conftest 2>/dev/null; then
190 am_cv_prog_ln='cp -p'
192 rm -f conftest conftest.file])
193 AC_SUBST([LN], [$am_cv_prog_ln])
195 test "x$am_cv_prog_ln" = xln && result=yes
196 AC_MSG_RESULT([$result])
198 # The amount we should wait after modifying files depends on the platform.
199 # On Windows '95, '98 and ME, files modifications have 2-seconds
200 # granularity and can be up to 3 seconds in the future w.r.t. the
201 # system clock. When it is important to ensure one file is older
202 # than another we wait at least 5 seconds between creations.
204 *-pc-msdosdjgpp) MODIFICATION_DELAY=5;;
205 *) MODIFICATION_DELAY=2;;
207 AC_SUBST([MODIFICATION_DELAY])
209 # Test for things needed by the test suite.
213 AC_CACHE_CHECK([whether $SHELL has working 'set -e' with exit trap],
214 [am_cv_sh_errexit_works],
215 [if $SHELL -ec "trap 'exit \$?' 0; (exit 77); exit 77"; test $? = 77
217 am_cv_sh_errexit_works=yes
219 am_cv_sh_errexit_works=no
222 if test $am_cv_sh_errexit_works = no; then
223 AC_MSG_WARN(["${MAKE-make} check" will leave leftover directories t/*.dir])
224 AC_MSG_WARN([you can clean them up manually using "${MAKE-make} clean" or])
225 AC_MSG_WARN(["cd t && ${MAKE-make} clean-local-check'])
227 AC_SUBST([sh_errexit_works], [$am_cv_sh_errexit_works])
230 ###########################################################################
232 # Look for C, C++ and fortran compilers to be used in the testsuite.
234 dnl We don't want to abort our configuration script if no C compiler is
235 dnl available, as such a compiler is only required to run part of the
236 dnl testsuite, not to build or install Automake. Ditto for C++, Fortran
237 dnl and Fortran 77 compilers. Unfortunately, autoconf does not offer an
238 dnl easy way to obtain this behaviour, so we'll need a few hacks.
240 dnl We want the body of this macro to expand as a single shell statement,
241 dnl thus we wrap it into { ... } brackets.
242 AC_DEFUN([_AM_WRAP_MSG_ERROR], [ {
248 AC_DEFUN([_AM_COMPILER_CAN_FAIL], [
249 m4_pushdef([AC_MSG_FAILURE], m4_defn([_AM_WRAP_MSG_ERROR]))
250 m4_pushdef([AC_MSG_ERROR], m4_defn([_AM_WRAP_MSG_ERROR]))
256 AS_IF([test $am__failed = yes], [$2])
257 # We have to clear these cache variables, so that future checks on
258 # compilers for different languages won't be confused.
259 unset ac_cv_objext ac_cv_exeext
260 # We also need to meddle with the autoconf internals to ensure that
261 # checks to find object and executable extensions will be run anew.
262 # FIXME: In the long run, the better thing to do would be to fix
263 # FIXME: autoconf instead ...
264 m4_undefine([m4_provide(_AC_COMPILER_OBJEXT)])
265 m4_undefine([m4_provide(_AC_COMPILER_EXEEXT)])
266 m4_popdef([AC_MSG_FAILURE])
267 m4_popdef([AC_MSG_ERROR])
270 AC_DEFUN([_AM_SKIP_COMP_TESTS],
271 [AC_MSG_NOTICE([tests requiring the $1 compiler will be skipped])])
273 # Prefer generic compilers to GNU ones when possible. This will ensure
274 # more testsuite coverage "in the wild".
275 # Note that we don't look for the MSVC C/C++ compiler here. This is
276 # deliberate; for more discussion and rationale, see:
277 # <http://lists.gnu.org/archive/html/automake-patches/2012-01/msg00130.html>
279 AC_MSG_NOTICE([will now look for generic compilers])
282 _AM_COMPILER_CAN_FAIL(dnl
283 [AC_PROG_CC([cc gcc])],
284 [CC=false; _AM_SKIP_COMP_TESTS([C])])
286 AS_IF([test x"$GCC" = x"yes"], [am_CC_is_GNU=yes], [am_CC_is_GNU=no])
288 # The list of C++ compilers here has been copied, pasted and edited
289 # from 'lib/autoconf/c.m4:AC_PROG_CXX' in the Autoconf distribution.
290 # Keep it in sync, or better again, find out a way to avoid this code
292 _AM_COMPILER_CAN_FAIL([AC_PROG_CXX(dnl
293 [aCC CC FCC KCC RCC xlC_r xlC c++ cxx cc++ gpp g++])],
294 [CXX=false; _AM_SKIP_COMP_TESTS([C++])])
296 AS_IF([test x"$GXX" = x"yes"], [am_CXX_is_GNU=yes], [am_CXX_is_GNU=no])
298 # The lists of Fortran compilers here has been copied, pasted and edited
299 # from file 'lib/autoconf/fortran.m4' in the Autoconf distribution.
300 # Keep it in sync, or better again, find out a way to avoid this code
303 _AM_COMPILER_CAN_FAIL([AC_PROG_FC(dnl
304 [xlf95 f95 fort ifort ifc efc pgfortran pgf95 lf95 ftn nagfor] dnl
305 [xlf90 f90 pgf90 pghpf epcf90 g95 gfortran])],
306 [FC=false; _AM_SKIP_COMP_TESTS([Fortran])])
308 AS_IF([test x"$GFC" = x"yes"], [am_FC_is_GNU=yes], [am_FC_is_GNU=no])
310 _AM_COMPILER_CAN_FAIL([AC_PROG_F77(dnl
311 [xlf f77 frt pgf77 cf77 fort77 fl32 af77 g77 gfortran])],
312 [F77=false; _AM_SKIP_COMP_TESTS([Fortran 77])])
314 AS_IF([test x"$G77" = x"yes"], [am_F77_is_GNU=yes], [am_F77_is_GNU=no])
316 # Some tests will need the GNU compilers. Searching for them here would
317 # be overkill, since our testsuite already handles their search and setup
318 # pretty well. But in case the compilers already found are the GNU ones,
319 # we want to use them in the testsuite where GNU compilers are required.
320 # Also, in case the compilers detected above (at configure time) are not
321 # the GNU ones, we cannot use the values of CFLAGS, CXXFLAGS, FCFLAGS and
322 # FFLAGS detected for them with the GNU compilers too, since it's likely
323 # they won't be compatible. So we allow the user to define variants of
324 # these variables for the GNU compilers separately.
326 AC_MSG_NOTICE([will now look for GNU compilers])
329 AC_ARG_VAR([GNU_CC], [GNU C compiler])
330 AC_ARG_VAR([GNU_CFLAGS], [GNU C compiler flags])
331 if test $am_CC_is_GNU = yes; then
332 AC_MSG_NOTICE([$CC is already a GNU C compiler])
333 GNU_CC=$CC GNU_CFLAGS=${GNU_CFLAGS-$CFLAGS}
335 AC_CHECK_TOOLS([GNU_CC], [gcc], [false])
337 AS_IF([AM_RUN_LOG([$GNU_CC --version && $GNU_CC -v])], [],
338 [AC_MSG_WARN([botched installation for GNU C compiler])
339 _AM_SKIP_COMP_TESTS([GNU C])])
342 AC_ARG_VAR([GNU_CXX], [GNU C++ compiler])
343 AC_ARG_VAR([GNU_CXXFLAGS], [GNU C++ compiler flags])
344 if test $am_CXX_is_GNU = yes; then
345 AC_MSG_NOTICE([$CXX is already a GNU C++ compiler])
347 GNU_CXXFLAGS=${GNU_CXXFLAGS-$CXXFLAGS}
349 AC_CHECK_TOOLS([GNU_CXX], [g++ gpp], [false])
351 AS_IF([AM_RUN_LOG([$GNU_CXX --version && $GNU_CXX -v])], [],
352 [AC_MSG_WARN([botched installation for GNU C++ compiler])
353 _AM_SKIP_COMP_TESTS([GNU C++])])
355 # GNU Fortran compiler.
356 AC_ARG_VAR([GNU_FC], [GNU Fortran compiler])
357 AC_ARG_VAR([GNU_FCFLAGS], [GNU Fortran compiler flags])
358 if test $am_FC_is_GNU = yes; then
359 AC_MSG_NOTICE([$FC is already a GNU Fortran compiler])
361 GNU_FCFLAGS=${GNU_FCFLAGS-$FCFLAGS}
363 AC_CHECK_TOOLS([GNU_FC], [gfortran], [false])
365 AS_IF([AM_RUN_LOG([$GNU_FC --version && $GNU_FC -v])], [],
366 [AC_MSG_WARN([botched installation for GNU Fortran compiler])
367 _AM_SKIP_COMP_TESTS([GNU Fortran])])
369 # GNU Fortran 77 compiler.
370 AC_ARG_VAR([GNU_F77], [GNU Fortran 77 compiler])
371 AC_ARG_VAR([GNU_FFLAGS], [GNU Fortran 77 compiler flags])
372 if test $am_F77_is_GNU = yes; then
373 AC_MSG_NOTICE([$F77 is already a GNU Fortran 77 compiler])
375 GNU_FFLAGS=${GNU_FFLAGS-$FFLAGS}
377 AC_CHECK_TOOLS([GNU_F77], [g77 gfortran], [false])
379 AS_IF([AM_RUN_LOG([$GNU_F77 --version && $GNU_F77 -v])], [],
380 [AC_MSG_WARN([botched installation for GNU Fortran 77 compiler])
381 _AM_SKIP_COMP_TESTS([GNU Fortran 77])])
384 AC_ARG_VAR([GNU_GCJ], [GNU Java compiler])
385 AC_ARG_VAR([GNU_GCJFLAGS], [GNU Java compiler flags])
386 AC_CHECK_TOOLS([GNU_GCJ], [gcj], [false])
387 AS_IF([AM_RUN_LOG([$GNU_GCJ --version && $GNU_GCJ -v])], [],
388 [AC_MSG_WARN([botched installation for GNU Java compiler])
389 _AM_SKIP_COMP_TESTS([GNU Java])])
391 # If we have been able to find at least a working compiler above, we
392 # know what the object and executable extensions for this platform are.
393 OBJEXT=${ac_cv_objext-UNKNOWN}
394 EXEEXT=${ac_cv_exeext-UNKNOWN}
398 ###########################################################################
400 AC_CONFIG_FILES([Makefile])
402 AC_CONFIG_LINKS([GNUmakefile:GNUmakefile])
403 AC_CONFIG_LINKS([defs:defs])
405 AC_CONFIG_FILES([t/wrap/aclocal-${APIVERSION}:t/wrap/aclocal.in],
406 [chmod +x t/wrap/aclocal-${APIVERSION}],
407 [APIVERSION=$APIVERSION])
408 AC_CONFIG_FILES([t/wrap/automake-${APIVERSION}:t/wrap/automake.in],
409 [chmod +x t/wrap/automake-${APIVERSION}],
410 [APIVERSION=$APIVERSION])
414 # Inform the user if this version of automake is a beta release or
415 # a development snapshot.
416 # According to HACKING, the version of a development snapshot should
417 # end with an "odd" letter (a, c, ...), the version of a test release
418 # should end wit an "even" letter (b, d, ...).
420 am_stable_version_rx='[[1-9]\.[0-9]+(\.[0-9]+)?]'
421 am_beta_version_rx="[$am_stable_version_rx[bdfhjlnprtvxz]]"
423 am_release_type=`AS_ECHO(["$PACKAGE_VERSION"]) | LC_ALL=C awk ["
424 /^$am_stable_version_rx$/ { print \"stable\"; exit(0); }
425 /^$am_beta_version_rx$/ { print \"beta version\"; exit(0); }
426 { print \"development snapshot\"; }"]`
428 test "$am_release_type" = stable || cat <<EOF
430 WARNING: You are about to use a $am_release_type of automake.
431 WARNING: It might easily suffer from new bugs or regressions.
432 WARNING: You are strongly advised not to use it in production code.
434 Please report bugs, problems and feedback to <AC_PACKAGE_BUGREPORT>.