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], ["${AUTOUPDATE-autoupdate}"])
39 dnl We call AC_PROG_CC in an unusual way, and only for use in our
40 dnl testsuite, so also use 'no-dependencies' and 'no-define' among
41 dnl the automake options to avoid bloating and potential problems.
42 AM_INIT_AUTOMAKE([dist-xz filename-length-max=99 color-tests
43 parallel-tests silent-rules no-define no-dependencies])
45 ## Keep this on a line of its own, since it must be found and processed
46 ## by the 'update-copyright' rule in out Makefile.
48 AC_SUBST([RELEASE_YEAR])
50 # The API version is the base version. We must guarantee
51 # compatibility for all releases with the same API version.
52 # Our current rule is that:
53 # * All releases, including the prereleases, in an X.Y series
54 # are compatible. So 1.5.1c is compatible with 1.5.
55 # * Prereleases on the trunk are all incompatible -- 1.5b and 1.5c
57 APIVERSION=`echo "$VERSION" | sed -e 's/^\([[0-9]]*\.[[0-9]]*[[a-z]]*\).*$/\1/'`
58 AC_SUBST([APIVERSION])
60 AC_SUBST([pkgvdatadir], ["\${datadir}/$PACKAGE-$APIVERSION"])
61 AC_SUBST([scriptdir], ["\${pkgvdatadir}"])
62 AC_SUBST([amdir], ["\${pkgvdatadir}/am"])
63 AC_SUBST([automake_acdir], ["\${datadir}/aclocal-$APIVERSION"])
64 AC_SUBST([system_acdir], ["\${datadir}/aclocal"])
66 # $AUTOMAKE and $ACLOCAL are always run after a "cd $top_srcdir",
67 # hence '.' is really what we want for perllibdir, libdir, and acdir.
68 # Use '-I' with aclocal so that our own *.m4 files in m4/ gets included,
69 # not copied, in aclocal.m4.
71 perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/aclocal\" \
72 --automake-acdir=m4 --system-acdir=m4/acdir -I m4"
74 perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/automake\" \
77 AC_PATH_PROG([PERL], [perl])
78 if test -z "$PERL"; then
79 AC_MSG_ERROR([perl not found])
81 # Save details about the selected perl interpreter in config.log.
82 AM_RUN_LOG([$PERL --version])
83 $PERL -e 'require 5.006;' || {
85 [perl 5.6 or better is required; perl 5.8.2 or better
86 is recommended. If you have several perl versions
87 installed, select the one Automake should use using
88 ./configure PERL=/path/to/perl])
91 # We require ithreads support, and version 5.7.2 for CLONE.
92 AC_CACHE_CHECK([whether $PERL supports ithreads], [am_cv_prog_PERL_ithreads],
96 if ($Config{useithreads})
100 require Thread::Queue;
101 import Thread::Queue;
104 exit 1;' >&AS_MESSAGE_LOG_FD 2>&1
106 am_cv_prog_PERL_ithreads=yes
108 am_cv_prog_PERL_ithreads=no
110 if test $am_cv_prog_PERL_ithreads = yes; then
115 AC_SUBST([PERL_THREADS])
117 # The test suite will skip some tests if tex is absent.
118 AC_CHECK_PROG([TEX], [tex], [tex])
119 # Save details about the selected TeX program in config.log.
120 # Redirect input from /dev/null, as TeX might otherwise hang waiting
121 # for input from the terminal.
122 AM_RUN_LOG([$TEX --version </dev/null])
124 # The test suite will skip some tests if no lex or yacc program is
126 # We don't use AC_PROG_LEX nor AC_PROG_YACC here because:
127 # 1. we don't want flex (resp. bison) to be preferred to system lex
128 # (resp. system yacc);
129 # 2. we don't want $LEX (resp. $YACC) to be defined to ':' (resp. 'yacc')
131 # 3. we prefer not to have the variables YFLAGS, LEX_OUTPUT_ROOT and
132 # LEXLIB to be calculated and/or AC_SUBST'd;
133 # 4. we prefer that the YACC and LEX variables are not reported in the
134 # configure help screen.
135 AC_CHECK_PROGS([YACC], [yacc byacc 'bison -y'], [false])
136 AC_CHECK_PROGS([LEX], [lex flex], [false])
138 # Test for Autoconf. We run Autoconf in a subdirectory to ease
139 # deletion of any files created (such as those added to
140 # autom4te.cache). We used to perform only the last of the three
141 # following tests, but some users were unable to figure out that their
142 # installation was broken since --version appeared to work.
144 required_autoconf_version=2.62
145 AC_CACHE_CHECK([whether autoconf is installed], [am_cv_autoconf_installed],
146 [if AM_RUN_LOG([$am_AUTOCONF --version]);
148 am_cv_autoconf_installed=yes
150 am_cv_autoconf_installed=no
152 if test "$am_cv_autoconf_installed" = no; then
153 AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.
154 Please make sure it is installed and in your PATH.])
157 AC_CACHE_CHECK([whether autoconf works], [am_cv_autoconf_works],
159 echo 'AC''_INIT' > conftest/conftest.ac
160 if AM_RUN_LOG([cd conftest && $am_AUTOCONF -o /dev/null conftest.ac]);
162 am_cv_autoconf_works=yes
164 am_cv_autoconf_works=no
167 if test "$am_cv_autoconf_works" = no; then
168 AC_MSG_ERROR([The installed version of autoconf does not work.
169 Please check config.log for error messages before this one.])
172 AC_CACHE_CHECK([whether autoconf is recent enough], [am_cv_autoconf_version],
174 dnl Creative quoting required to avoid spurious expansion of AC_PREREQ macro
175 echo 'AC'"_PREREQ([[$required_autoconf_version]])" > conftest/conftest.ac
176 if AM_RUN_LOG([cd conftest && $am_AUTOCONF -o /dev/null conftest.ac]);
178 am_cv_autoconf_version=yes
180 am_cv_autoconf_version=no
183 if test "$am_cv_autoconf_version" = no; then
184 AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.])
187 # Test for ln. We need use it to install the versioned binaries.
188 AC_MSG_CHECKING([whether ln works])
189 AC_CACHE_VAL([am_cv_prog_ln], [
190 rm -f conftest conftest.file
192 if ln conftest.file conftest 2>/dev/null; then
195 am_cv_prog_ln='cp -p'
197 rm -f conftest conftest.file])
198 AC_SUBST([LN], [$am_cv_prog_ln])
200 test "x$am_cv_prog_ln" = xln && result=yes
201 AC_MSG_RESULT([$result])
203 # The amount we should wait after modifying files depends on the platform.
204 # On Windows '95, '98 and ME, files modifications have 2-seconds
205 # granularity and can be up to 3 seconds in the future w.r.t. the
206 # system clock. When it is important to ensure one file is older
207 # than another we wait at least 5 seconds between creations.
209 *-pc-msdosdjgpp) MODIFICATION_DELAY=5;;
210 *) MODIFICATION_DELAY=2;;
212 AC_SUBST([MODIFICATION_DELAY])
214 # Test for things needed by the test suite.
218 AC_CACHE_CHECK([whether $SHELL has working 'set -e' with exit trap],
219 [am_cv_sh_errexit_works],
220 [if $SHELL -ec "trap 'exit \$?' 0; (exit 77); exit 77"; test $? = 77
222 am_cv_sh_errexit_works=yes
224 am_cv_sh_errexit_works=no
227 if test $am_cv_sh_errexit_works = no; then
228 AC_MSG_WARN(["${MAKE-make} check" will leave leftover directories t/*.dir])
229 AC_MSG_WARN([you can clean them up manually using "${MAKE-make} clean" or])
230 AC_MSG_WARN(["cd t && ${MAKE-make} clean-local-check'])
232 AC_SUBST([sh_errexit_works], [$am_cv_sh_errexit_works])
235 ###########################################################################
237 # Look for C, C++ and fortran compilers to be used in the testsuite.
239 dnl We don't want to abort our configuration script if no C compiler is
240 dnl available, as such a compiler is only required to run part of the
241 dnl testsuite, not to build or install Automake. Ditto for C++, Fortran
242 dnl and Fortran 77 compilers. Unfortunately, autoconf does not offer an
243 dnl easy way to obtain this behaviour, so we'll need a few hacks.
245 dnl We want the body of this macro to expand as a single shell statement,
246 dnl thus we wrap it into { ... } brackets.
247 AC_DEFUN([_AM_WRAP_MSG_ERROR], [ {
253 AC_DEFUN([_AM_COMPILER_CAN_FAIL], [
254 m4_pushdef([AC_MSG_FAILURE], m4_defn([_AM_WRAP_MSG_ERROR]))
255 m4_pushdef([AC_MSG_ERROR], m4_defn([_AM_WRAP_MSG_ERROR]))
261 AS_IF([test $am__failed = yes], [$2])
262 # We have to clear these cache variables, so that future checks on
263 # compilers for different languages won't be confused.
264 unset ac_cv_objext ac_cv_exeext
265 # We also need to meddle with the autoconf internals to ensure that
266 # checks to find object and executable extensions will be run anew.
267 # FIXME: In the long run, the better thing to do would be to fix
268 # FIXME: autoconf instead ...
269 m4_undefine([m4_provide(_AC_COMPILER_OBJEXT)])
270 m4_undefine([m4_provide(_AC_COMPILER_EXEEXT)])
271 m4_popdef([AC_MSG_FAILURE])
272 m4_popdef([AC_MSG_ERROR])
275 AC_DEFUN([_AM_SKIP_COMP_TESTS],
276 [AC_MSG_NOTICE([tests requiring the $1 compiler will be skipped])])
278 # Prefer generic compilers to GNU ones when possible. This will ensure
279 # more testsuite coverage "in the wild".
280 # Note that we don't look for the MSVC C/C++ compiler here. This is
281 # deliberate; for more discussion and rationale, see:
282 # <http://lists.gnu.org/archive/html/automake-patches/2012-01/msg00130.html>
284 AC_MSG_NOTICE([will now look for generic compilers])
287 _AM_COMPILER_CAN_FAIL(dnl
288 [AC_PROG_CC([cc gcc])],
289 [CC=false; _AM_SKIP_COMP_TESTS([C])])
291 AS_IF([test x"$GCC" = x"yes"], [am_CC_is_GNU=yes], [am_CC_is_GNU=no])
293 # The list of C++ compilers here has been copied, pasted and edited
294 # from 'lib/autoconf/c.m4:AC_PROG_CXX' in the Autoconf distribution.
295 # Keep it in sync, or better again, find out a way to avoid this code
297 _AM_COMPILER_CAN_FAIL([AC_PROG_CXX(dnl
298 [aCC CC FCC KCC RCC xlC_r xlC c++ cxx cc++ gpp g++])],
299 [CXX=false; _AM_SKIP_COMP_TESTS([C++])])
301 AS_IF([test x"$GXX" = x"yes"], [am_CXX_is_GNU=yes], [am_CXX_is_GNU=no])
303 # The lists of Fortran compilers here has been copied, pasted and edited
304 # from file 'lib/autoconf/fortran.m4' in the Autoconf distribution.
305 # Keep it in sync, or better again, find out a way to avoid this code
308 _AM_COMPILER_CAN_FAIL([AC_PROG_FC(dnl
309 [xlf95 f95 fort ifort ifc efc pgfortran pgf95 lf95 ftn nagfor] dnl
310 [xlf90 f90 pgf90 pghpf epcf90 g95 gfortran])],
311 [FC=false; _AM_SKIP_COMP_TESTS([Fortran])])
313 AS_IF([test x"$GFC" = x"yes"], [am_FC_is_GNU=yes], [am_FC_is_GNU=no])
315 _AM_COMPILER_CAN_FAIL([AC_PROG_F77(dnl
316 [xlf f77 frt pgf77 cf77 fort77 fl32 af77 g77 gfortran])],
317 [F77=false; _AM_SKIP_COMP_TESTS([Fortran 77])])
319 AS_IF([test x"$G77" = x"yes"], [am_F77_is_GNU=yes], [am_F77_is_GNU=no])
321 # Some tests will need the GNU compilers. Searching for them here would
322 # be overkill, since our testsuite already handles their search and setup
323 # pretty well. But in case the compilers already found are the GNU ones,
324 # we want to use them in the testsuite where GNU compilers are required.
325 # Also, in case the compilers detected above (at configure time) are not
326 # the GNU ones, we cannot use the values of CFLAGS, CXXFLAGS, FCFLAGS and
327 # FFLAGS detected for them with the GNU compilers too, since it's likely
328 # they won't be compatible. So we allow the user to define variants of
329 # these variables for the GNU compilers separately.
331 AC_MSG_NOTICE([will now look for GNU compilers])
334 AC_ARG_VAR([GNU_CC], [GNU C compiler])
335 AC_ARG_VAR([GNU_CFLAGS], [GNU C compiler flags])
336 if test $am_CC_is_GNU = yes; then
337 AC_MSG_NOTICE([$CC is already a GNU C compiler])
338 GNU_CC=$CC GNU_CFLAGS=${GNU_CFLAGS-$CFLAGS}
340 AC_CHECK_TOOLS([GNU_CC], [gcc], [false])
342 AS_IF([AM_RUN_LOG([$GNU_CC --version && $GNU_CC -v])], [],
343 [AC_MSG_WARN([botched installation for GNU C compiler])
344 _AM_SKIP_COMP_TESTS([GNU C])])
347 AC_ARG_VAR([GNU_CXX], [GNU C++ compiler])
348 AC_ARG_VAR([GNU_CXXFLAGS], [GNU C++ compiler flags])
349 if test $am_CXX_is_GNU = yes; then
350 AC_MSG_NOTICE([$CXX is already a GNU C++ compiler])
352 GNU_CXXFLAGS=${GNU_CXXFLAGS-$CXXFLAGS}
354 AC_CHECK_TOOLS([GNU_CXX], [g++ gpp], [false])
356 AS_IF([AM_RUN_LOG([$GNU_CXX --version && $GNU_CXX -v])], [],
357 [AC_MSG_WARN([botched installation for GNU C++ compiler])
358 _AM_SKIP_COMP_TESTS([GNU C++])])
360 # GNU Fortran compiler.
361 AC_ARG_VAR([GNU_FC], [GNU Fortran compiler])
362 AC_ARG_VAR([GNU_FCFLAGS], [GNU Fortran compiler flags])
363 if test $am_FC_is_GNU = yes; then
364 AC_MSG_NOTICE([$FC is already a GNU Fortran compiler])
366 GNU_FCFLAGS=${GNU_FCFLAGS-$FCFLAGS}
368 AC_CHECK_TOOLS([GNU_FC], [gfortran], [false])
370 AS_IF([AM_RUN_LOG([$GNU_FC --version && $GNU_FC -v])], [],
371 [AC_MSG_WARN([botched installation for GNU Fortran compiler])
372 _AM_SKIP_COMP_TESTS([GNU Fortran])])
374 # GNU Fortran 77 compiler.
375 AC_ARG_VAR([GNU_F77], [GNU Fortran 77 compiler])
376 AC_ARG_VAR([GNU_FFLAGS], [GNU Fortran 77 compiler flags])
377 if test $am_F77_is_GNU = yes; then
378 AC_MSG_NOTICE([$F77 is already a GNU Fortran 77 compiler])
380 GNU_FFLAGS=${GNU_FFLAGS-$FFLAGS}
382 AC_CHECK_TOOLS([GNU_F77], [g77 gfortran], [false])
384 AS_IF([AM_RUN_LOG([$GNU_F77 --version && $GNU_F77 -v])], [],
385 [AC_MSG_WARN([botched installation for GNU Fortran 77 compiler])
386 _AM_SKIP_COMP_TESTS([GNU Fortran 77])])
389 AC_ARG_VAR([GNU_GCJ], [GNU Java compiler])
390 AC_ARG_VAR([GNU_GCJFLAGS], [GNU Java compiler flags])
391 AC_CHECK_TOOLS([GNU_GCJ], [gcj], [false])
392 AS_IF([AM_RUN_LOG([$GNU_GCJ --version && $GNU_GCJ -v])], [],
393 [AC_MSG_WARN([botched installation for GNU Java compiler])
394 _AM_SKIP_COMP_TESTS([GNU Java])])
396 # If we have been able to find at least a working compiler above, we
397 # know what the object and executable extensions for this platform are.
398 OBJEXT=${ac_cv_objext-UNKNOWN}
399 EXEEXT=${ac_cv_exeext-UNKNOWN}
403 ###########################################################################
405 AC_CONFIG_FILES([Makefile])
407 AC_CONFIG_LINKS([GNUmakefile:GNUmakefile])
408 AC_CONFIG_LINKS([defs:defs])
410 AC_CONFIG_FILES([t/wrap/aclocal-${APIVERSION}:t/wrap/aclocal.in],
411 [chmod +x t/wrap/aclocal-${APIVERSION}],
412 [APIVERSION=$APIVERSION])
413 AC_CONFIG_FILES([t/wrap/automake-${APIVERSION}:t/wrap/automake.in],
414 [chmod +x t/wrap/automake-${APIVERSION}],
415 [APIVERSION=$APIVERSION])
419 # Inform the user if this version of automake is a beta release or
420 # a development snapshot.
421 # According to HACKING, the version of a development snapshot should
422 # end with an "odd" letter (a, c, ...), the version of a test release
423 # should end wit an "even" letter (b, d, ...).
425 am_stable_version_rx='[[1-9]\.[0-9]+(\.[0-9]+)?]'
426 am_beta_version_rx="[$am_stable_version_rx[bdfhjlnprtvxz]]"
428 am_release_type=`AS_ECHO(["$PACKAGE_VERSION"]) | LC_ALL=C awk ["
429 /^$am_stable_version_rx$/ { print \"stable\"; exit(0); }
430 /^$am_beta_version_rx$/ { print \"beta version\"; exit(0); }
431 { print \"development snapshot\"; }"]`
433 test "$am_release_type" = stable || cat <<EOF
435 WARNING: You are about to use a $am_release_type of automake.
436 WARNING: It might easily suffer from new bugs or regressions.
437 WARNING: You are strongly advised not to use it in production code.
439 Please report bugs, problems and feedback to <AC_PACKAGE_BUGREPORT>.