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- # Process this file with autoconf to produce a configure script.
- # Copyright (C) 1995-2017 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, see <http://www.gnu.org/licenses/>.
- AC_PREREQ([2.69])
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- AC_SUBST([am_AUTOHEADER], ["${AUTOHEADER-autoheader}"])
- AC_SUBST([am_AUTOUPDATE], ["${AUTOUPDATE-autoupdate}"])
- dnl We call AC_PROG_CC in an unusual way, and only for use in our
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- AC_SUBST([RELEASE_YEAR])
- # The API version is the base version. We must guarantee
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- # Our current rule is that:
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- AC_MSG_ERROR(
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- # (resp. system yacc);
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- # by default;
- # 3. we prefer not to have the variables YFLAGS, LEX_OUTPUT_ROOT and
- # LEXLIB to be calculated and/or AC_SUBST'd;
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- # configure help screen.
- AC_CHECK_PROGS([YACC], [yacc byacc 'bison -y'], [false])
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- dnl FIXME: could we extract this in a simpler way through autoconf
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- dnl
- dnl Arguments to this macro:
- dnl
- dnl $1 - shell to test
- dnl $2 - description of the tested feature
- dnl $3 - shell code used to check the feature; to indicate success,
- dnl it can either exit with status 77, or have the last command
- dnl returning with exit status of zero
- dnl $4 - shell code to execute if the check on the shell is successful
- dnl (defaults to nothing)
- dnl $5 - shell code to execute if the check on the shell is not
- dnl successful (defaults to nothing)
- dnl
- AC_DEFUN([_AM_CHECK_SHELL_FEATURE],
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- AC_MSG_CHECKING([whether $1 $2])
- if { $1 -c "$am_bourne_compatible
- AS_ESCAPE([$3])
- test \$? -eq 0 || exit 1
- # Use 77 to indicate success (rather than 0), in case some shell
- # acts like Solaris 10's /bin/sh, exiting successfully on some
- # syntax errors.
- exit 77" >&AS_MESSAGE_LOG_FD 2>&1; test $? -eq 77; }
- then
- AC_MSG_RESULT([yes])
- $4
- else
- AC_MSG_RESULT([no])
- $5
- fi])
- # AM_CHECK_CANDIDATE_TEST_SHELL(SHELL-PATH)
- # -----------------------------------------
- #
- # Check if the given shell is good enough to run our test scripts.
- # Inspired to gnulib's 'tests/init.sh'.
- #
- # We require POSIX and XSI features (e.g., '$(...)' for command
- # substitutions, '$((...))' for shell arithmetic, and support for
- # '${var#...}' and '${var%...}' parameter expansions).
- #
- # We require that the shell can correctly trap EXIT when 'set -e' is in
- # effect (OSF1/Tru64 sh failed to do so, see commit v1.10b-52-g9fe8259).
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- # We want to able to define shell aliases with the same name of shell
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- #
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- # Use '$am_score' to indicate the degree of acceptability of the shell.
- # A score of "10" means that the shell is good enough for our needs;
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- #
- AC_DEFUN([_AM_CHECK_CANDIDATE_SHELL],
- [am_score=10
- while :; do
- _AM_CHECK_SHELL_FEATURE([$1],
- [supports \$(cmd)],
- [test "$(echo x)" = x],
- [], [am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [supports \$((expr))],
- [test $((1 + 2 * 3)) = 7],
- [], [am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [supports \${@%:@var}],
- [zero='' one='x' twelve=' foobar baz!' \
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- && test ${@%:@one} -eq 1 \
- && test ${@%:@twelve} -eq 12],
- [], [am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [supports \${var@%:@glob} and \${var%glob}],
- [v=a/b/c \
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- && test ${v@%:@@%:@*/} = c \
- && test ${v%/*} = a/b \
- && test ${v%%/*} = a],
- [], [am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [preserves exit traps with "set -e"],
- [set -e; trap 'exit $?' 0; (exit 77); exit 77],
- [], [am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [can define exit traps in a shell function],
- [fail=0 && foo() { trap 'fail=1' 0; } && foo && test $fail = 0],
- [], [am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [corrupts stderr with "set -x"],
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- echo 'return 34' > conftest-return.sh
- echo 'ok=no' >> conftest-return.sh
- _AM_CHECK_SHELL_FEATURE([$1],
- [can return early from "dot-sourced" files],
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- echo 'alias false=echo' > conftest-alias.sh
- echo 'false && test "$(false 97)" = 97' >> conftest-alias.sh
- _AM_CHECK_SHELL_FEATURE([$1],
- [supports alias named like shell builtins],
- [. ./conftest-alias.sh],
- [rm -f conftest-alias.sh],
- [rm -f conftest-alias.sh; am_score=1; break])
- _AM_CHECK_SHELL_FEATURE([$1],
- [supports "test -e"],
- [test -e config.log && test -e . && test ! -e nonesuch],
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- break
- done])
- # These messages only goes to the config.log file.
- AC_MSG_NOTICE([will now look for a sturdy POSIX shell, for our testsuite])
- AC_CACHE_VAL(
- [ac_cv_AM_TEST_RUNNER_SHELL],
- [if test "$AM_TEST_RUNNER_SHELL"; then
- # Let the user override it.
- ac_cv_AM_TEST_RUNNER_SHELL=$AM_TEST_RUNNER_SHELL
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- ac_cv_AM_TEST_RUNNER_SHELL=no
- am_candidate_shells=${CONFIG_SHELL-}
- # For the benefit of Solaris.
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- if test -n "$am_candidate_sh"; then
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- AM_SUBST_NOTMAKE([am_candidate_sh])
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- AM_TEST_RUNNER_SHELL=$ac_cv_AM_TEST_RUNNER_SHELL])
- if test $AM_TEST_RUNNER_SHELL = no; then
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- else
- AC_MSG_NOTICE([will use $AM_TEST_RUNNER_SHELL as the testsuite shell])
- fi
- AC_ARG_VAR([AM_TEST_RUNNER_SHELL],
- [a sturdy POSIX shell for our testsuite])
- ###########################################################################
- # Look for C, C++ and fortran compilers to be used in the testsuite.
- dnl We don't want to abort our configuration script if no C compiler is
- dnl available, as such a compiler is only required to run part of the
- dnl testsuite, not to build or install Automake. Ditto for C++, Fortran
- dnl and Fortran 77 compilers. Unfortunately, autoconf does not offer an
- dnl easy way to obtain this behaviour, so we'll need a few hacks.
- dnl We want the body of this macro to expand as a single shell statement,
- dnl thus we wrap it into { ... } brackets.
- AC_DEFUN([_AM_WRAP_MSG_ERROR], [ {
- AC_MSG_WARN([$1])
- am__failed=yes
- break
- } ])
- AC_DEFUN([_AM_COMPILER_CAN_FAIL], [
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- am__failed=no
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- # We also need to meddle with the autoconf internals to ensure that
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- # FIXME: In the long run, the better thing to do would be to fix
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- m4_undefine([m4_provide(_AC_COMPILER_OBJEXT)])
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- ])
- AC_DEFUN([_AM_SKIP_COMP_TESTS],
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- # Prefer generic compilers to GNU ones when possible. This will ensure
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- # Note that we don't look for the MSVC C/C++ compiler here. This is
- # deliberate; for more discussion and rationale, see:
- # <http://lists.gnu.org/archive/html/automake-patches/2012-01/msg00130.html>
- AC_MSG_NOTICE([will now look for generic compilers])
- # C compiler.
- _AM_COMPILER_CAN_FAIL(dnl
- [AC_PROG_CC([cc gcc])],
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- AS_IF([test x"$GCC" = x"yes"], [am_CC_is_GNU=yes], [am_CC_is_GNU=no])
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- # we must avoid looking for 'CC', because that would be the same as
- # 'cc', and could cause $CXX to point to the C compiler, instead of
- # to a C++ compiler as expected (see automake bugs #11893 and #10766).
- # Similarly, we must avoid looking for 'RCC', as that can point to the
- # Qt4 "Resource Compiler": <http://doc.qt.digia.com/4.2/rcc.html>
- if test -f /bIn/rMdIr || test -f /uSr/bIn/rMdIr; then
- # Case-insensitive file system, don't look for CC.
- am_CC= am_RCC=
- else
- am_CC=CC am_RCC=RCC
- fi
- # The list of C++ compilers here has been copied, pasted and edited
- # from 'lib/autoconf/c.m4:AC_PROG_CXX' in the Autoconf distribution.
- # Keep it in sync, or better again, find out a way to avoid this code
- # duplication.
- _AM_COMPILER_CAN_FAIL([AC_PROG_CXX(dnl
- [aCC $am_CC FCC KCC $am_RCC xlC_r xlC c++ cxx cc++ gpp g++])],
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- AS_IF([test x"$GXX" = x"yes"], [am_CXX_is_GNU=yes], [am_CXX_is_GNU=no])
- # The lists of Fortran compilers here has been copied, pasted and edited
- # from file 'lib/autoconf/fortran.m4' in the Autoconf distribution.
- # Keep it in sync, or better again, find out a way to avoid this code
- # duplication.
- _AM_COMPILER_CAN_FAIL([AC_PROG_FC(dnl
- [xlf95 f95 fort ifort ifc efc pgfortran pgf95 lf95 ftn nagfor] dnl
- [xlf90 f90 pgf90 pghpf epcf90 g95 gfortran])],
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- AS_IF([test x"$GFC" = x"yes"], [am_FC_is_GNU=yes], [am_FC_is_GNU=no])
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- [xlf f77 frt pgf77 cf77 fort77 fl32 af77 g77 gfortran])],
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- AS_IF([test x"$G77" = x"yes"], [am_F77_is_GNU=yes], [am_F77_is_GNU=no])
- # Some tests will need the GNU compilers. Searching for them here would
- # be overkill, since our testsuite already handles their search and setup
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- # they won't be compatible. So we allow the user to define variants of
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- # GNU C compiler.
- AC_ARG_VAR([GNU_CC], [GNU C compiler])
- AC_ARG_VAR([GNU_CFLAGS], [GNU C compiler flags])
- if test $am_CC_is_GNU = yes; then
- AC_MSG_NOTICE([$CC is already a GNU C compiler])
- GNU_CC=$CC GNU_CFLAGS=${GNU_CFLAGS-$CFLAGS}
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- AC_CHECK_TOOLS([GNU_CC], [gcc], [false])
- fi
- if test "$GNU_CC" != false; then
- AS_IF([AM_RUN_LOG([$GNU_CC --version && $GNU_CC -v])], [],
- [AC_MSG_WARN([botched installation for GNU C compiler])
- _AM_SKIP_COMP_TESTS([GNU C])])
- fi
- # GNU C++ compiler.
- AC_ARG_VAR([GNU_CXX], [GNU C++ compiler])
- AC_ARG_VAR([GNU_CXXFLAGS], [GNU C++ compiler flags])
- if test $am_CXX_is_GNU = yes; then
- AC_MSG_NOTICE([$CXX is already a GNU C++ compiler])
- GNU_CXX=$CXX
- GNU_CXXFLAGS=${GNU_CXXFLAGS-$CXXFLAGS}
- else
- AC_CHECK_TOOLS([GNU_CXX], [g++ gpp], [false])
- fi
- if test "$GNU_CXX" != false; then
- AS_IF([AM_RUN_LOG([$GNU_CXX --version && $GNU_CXX -v])], [],
- [AC_MSG_WARN([botched installation for GNU C++ compiler])
- _AM_SKIP_COMP_TESTS([GNU C++])])
- fi
- # GNU Fortran compiler.
- AC_ARG_VAR([GNU_FC], [GNU Fortran compiler])
- AC_ARG_VAR([GNU_FCFLAGS], [GNU Fortran compiler flags])
- if test $am_FC_is_GNU = yes; then
- AC_MSG_NOTICE([$FC is already a GNU Fortran compiler])
- GNU_FC=$FC
- GNU_FCFLAGS=${GNU_FCFLAGS-$FCFLAGS}
- else
- AC_CHECK_TOOLS([GNU_FC], [gfortran], [false])
- fi
- if test "$GNU_FC" != false; then
- AS_IF([AM_RUN_LOG([$GNU_FC --version && $GNU_FC -v])], [],
- [AC_MSG_WARN([botched installation for GNU Fortran compiler])
- _AM_SKIP_COMP_TESTS([GNU Fortran])])
- fi
- # GNU Fortran 77 compiler.
- AC_ARG_VAR([GNU_F77], [GNU Fortran 77 compiler])
- AC_ARG_VAR([GNU_FFLAGS], [GNU Fortran 77 compiler flags])
- if test $am_F77_is_GNU = yes; then
- AC_MSG_NOTICE([$F77 is already a GNU Fortran 77 compiler])
- GNU_F77=$F77
- GNU_FFLAGS=${GNU_FFLAGS-$FFLAGS}
- else
- AC_CHECK_TOOLS([GNU_F77], [g77 gfortran], [false])
- fi
- if test "$GNU_F77" != false; then
- AS_IF([AM_RUN_LOG([$GNU_F77 --version && $GNU_F77 -v])], [],
- [AC_MSG_WARN([botched installation for GNU Fortran 77 compiler])
- _AM_SKIP_COMP_TESTS([GNU Fortran 77])])
- fi
- # GNU Java compiler.
- AC_ARG_VAR([GNU_GCJ], [GNU Java compiler])
- AC_ARG_VAR([GNU_GCJFLAGS], [GNU Java compiler flags])
- AC_CHECK_TOOLS([GNU_GCJ], [gcj], [false])
- if test "$GNU_GCJ" != false; then
- AS_IF([AM_RUN_LOG([$GNU_GCJ --version && $GNU_GCJ -v])], [],
- [AC_MSG_WARN([botched installation for GNU Java compiler])
- _AM_SKIP_COMP_TESTS([GNU Java])])
- fi
- # If we have been able to find at least a working compiler above, we
- # know what the object and executable extensions for this platform are.
- OBJEXT=${ac_cv_objext-UNKNOWN}
- EXEEXT=${ac_cv_exeext-UNKNOWN}
- AC_SUBST([OBJEXT])
- AC_SUBST([EXEEXT])
- ###########################################################################
- ## ---------------------- ##
- ## Create output files. ##
- ## ---------------------- ##
- AC_CONFIG_FILES([Makefile])
- AC_CONFIG_LINKS([GNUmakefile:GNUmakefile])
- AC_CONFIG_FILES([t/wrap/aclocal-${APIVERSION}:t/wrap/aclocal.in],
- [chmod +x t/wrap/aclocal-${APIVERSION}],
- [APIVERSION=$APIVERSION])
- AC_CONFIG_FILES([t/wrap/automake-${APIVERSION}:t/wrap/automake.in],
- [chmod +x t/wrap/automake-${APIVERSION}],
- [APIVERSION=$APIVERSION])
- AC_OUTPUT
- # Inform the user if this version of automake is a beta release or
- # a development snapshot.
- # According to HACKING, the version of a development snapshot should
- # end with an "odd" letter (a, c, ...), the version of a test release
- # should end wit an "even" letter (b, d, ...).
- am_stable_version_rx='[[1-9]\.[0-9]+(\.[0-9]+)?]'
- am_beta_version_rx="[$am_stable_version_rx[bdfhjlnprtvxz]]"
- am_release_type=`AS_ECHO(["$PACKAGE_VERSION"]) | LC_ALL=C awk ["
- /^$am_stable_version_rx$/ { print \"stable\"; exit(0); }
- /^$am_beta_version_rx$/ { print \"beta version\"; exit(0); }
- { print \"development snapshot\"; }"]`
- # '$silent' is set to yes if configure is passed the '--quiet' option.
- test "$am_release_type" = stable || test "$silent" = yes || cat <<EOF
- WARNING: You are about to use a $am_release_type of automake.
- WARNING: It might easily suffer from new bugs or regressions.
- WARNING: You are strongly advised not to use it in production code.
- Please report bugs, problems and feedback to <AC_PACKAGE_BUGREPORT>.
- EOF
- AS_EXIT([0])
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