| 1 | # Configure template for GNU Bison. -*-Autoconf-*- |
| 2 | # |
| 3 | # Copyright (C) 2001-2012 Free Software Foundation, Inc. |
| 4 | # |
| 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 3 of the License, or |
| 8 | # (at your option) any later version. |
| 9 | # |
| 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. |
| 14 | # |
| 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/>. |
| 17 | |
| 18 | # In order for some versions of Sun Studio to compile our C++ test cases |
| 19 | # correctly, we need Autoconf 2.64 or better to handle the restrict |
| 20 | # keyword in at least string.h from gnulib. We need Autoconf 2.68 or |
| 21 | # better to avoid a typo in the `configure --help' entry for the YACC |
| 22 | # environment variable. |
| 23 | AC_PREREQ([2.68]) |
| 24 | m4_pattern_forbid([^gl_[A-Z]]) |
| 25 | |
| 26 | AC_INIT([GNU Bison], |
| 27 | m4_esyscmd([build-aux/git-version-gen .tarball-version]), |
| 28 | [bug-bison@gnu.org]) |
| 29 | AC_SUBST([PACKAGE_COPYRIGHT_YEAR], [2012]) |
| 30 | AC_DEFINE_UNQUOTED([PACKAGE_COPYRIGHT_YEAR], [$PACKAGE_COPYRIGHT_YEAR], |
| 31 | [The copyright year for this package]) |
| 32 | |
| 33 | AC_CONFIG_AUX_DIR([build-aux]) |
| 34 | AC_CONFIG_MACRO_DIR([m4]) |
| 35 | |
| 36 | # Automake 1.10.3 and 1.11.1 fix a security flaw discussed here: |
| 37 | # |
| 38 | # http://thread.gmane.org/gmane.comp.sysutils.autotools.announce/131 |
| 39 | # |
| 40 | # To avoid 1.11, we make 1.11.1 the minimum version. |
| 41 | # |
| 42 | # We want gnits strictness only when rolling a stable release. For |
| 43 | # release candidates, we use version strings like 2.4.3_rc1, but gnits |
| 44 | # doesn't like that, so we let the underscore disable gnits. Between |
| 45 | # releases, we want to be able run make dist without being required to |
| 46 | # add a bogus NEWS entry. In that case, the version string |
| 47 | # automatically contains a dash, which we also let disable gnits. |
| 48 | AM_INIT_AUTOMAKE([1.11.1 dist-xz silent-rules] |
| 49 | m4_bmatch(m4_defn([AC_PACKAGE_VERSION]), [[-_]], |
| 50 | [gnu], [gnits])) |
| 51 | AM_SILENT_RULES([yes]) |
| 52 | AC_CONFIG_HEADERS([lib/config.h:lib/config.in.h]) |
| 53 | |
| 54 | # Checks for the compiler. |
| 55 | AC_PROG_CC_STDC |
| 56 | AC_PROG_CXX |
| 57 | |
| 58 | # Gnulib (early checks). |
| 59 | gl_EARLY |
| 60 | |
| 61 | AC_ARG_ENABLE([gcc-warnings], |
| 62 | [ --enable-gcc-warnings turn on lots of GCC warnings (not recommended)], |
| 63 | [case $enable_gcc_warnings in |
| 64 | yes|no) ;; |
| 65 | *) AC_MSG_ERROR([invalid value for --gcc-warnings: $enable_gcc_warnings]);; |
| 66 | esac], |
| 67 | [enable_gcc_warnings=no]) |
| 68 | if test "$enable_gcc_warnings" = yes; then |
| 69 | warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align |
| 70 | -Wcast-qual -Wformat -Wpointer-arith -Wwrite-strings' |
| 71 | warn_c='-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes |
| 72 | -Wshadow -Wstrict-prototypes' |
| 73 | warn_cxx='-Wnoexcept' |
| 74 | AC_LANG_PUSH([C]) |
| 75 | for i in $warn_common $warn_c; |
| 76 | do |
| 77 | gl_WARN_ADD([$i], [WARN_CFLAGS]) |
| 78 | done |
| 79 | gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) |
| 80 | # Warnings for the test suite only. |
| 81 | gl_WARN_ADD([-Wundef], [WARN_CFLAGS_TEST]) |
| 82 | gl_WARN_ADD([-pedantic], [WARN_CFLAGS_TEST]) |
| 83 | AC_LANG_POP([C]) |
| 84 | |
| 85 | AC_LANG_PUSH([C++]) |
| 86 | for i in $warn_common $warn_cxx; |
| 87 | do |
| 88 | gl_WARN_ADD([$i], [WARN_CXXFLAGS]) |
| 89 | done |
| 90 | gl_WARN_ADD([ -Wzero-as-null-pointer-constant], [WARN_CXXFLAGS], |
| 91 | [AC_LANG_PROGRAM([], [nullptr])]) |
| 92 | gl_WARN_ADD([-Werror], [WERROR_CXXFLAGS]) |
| 93 | # Warnings for the test suite only. |
| 94 | gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST]) |
| 95 | gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST]) |
| 96 | AC_LANG_POP([C++]) |
| 97 | fi |
| 98 | |
| 99 | BISON_TEST_FOR_WORKING_C_COMPILER |
| 100 | BISON_TEST_FOR_WORKING_CXX_COMPILER |
| 101 | |
| 102 | AC_ARG_ENABLE([yacc], |
| 103 | [AC_HELP_STRING([--disable-yacc], |
| 104 | [do not build a yacc command or an -ly library])], |
| 105 | , [enable_yacc=yes]) |
| 106 | case $enable_yacc in |
| 107 | yes) |
| 108 | YACC_SCRIPT=yacc |
| 109 | YACC_LIBRARY=liby.a;; |
| 110 | *) |
| 111 | YACC_SCRIPT= |
| 112 | YACC_LIBRARY=;; |
| 113 | esac |
| 114 | AC_SUBST([YACC_SCRIPT]) |
| 115 | AC_SUBST([YACC_LIBRARY]) |
| 116 | |
| 117 | # Checks for programs. |
| 118 | AC_PROG_LEX |
| 119 | $LEX_IS_FLEX || AC_MSG_ERROR([Flex is required]) |
| 120 | AC_PROG_YACC |
| 121 | AC_PROG_RANLIB |
| 122 | AC_PROG_GNU_M4 |
| 123 | AC_DEFINE_UNQUOTED([M4], ["$M4"], [Define to the GNU M4 executable name.]) |
| 124 | AC_DEFINE_UNQUOTED([M4_GNU_OPTION], ["$M4_GNU"], [Define to "-g" if GNU M4 |
| 125 | supports -g, otherwise to "".]) |
| 126 | AM_MISSING_PROG([HELP2MAN], [help2man]) |
| 127 | AC_PATH_PROG([XSLTPROC], [xsltproc]) |
| 128 | AC_SUBST([XSLTPROC]) |
| 129 | |
| 130 | # Checks for header files. |
| 131 | AC_CHECK_HEADERS_ONCE([locale.h]) |
| 132 | |
| 133 | # Checks for compiler characteristics. |
| 134 | AC_C_INLINE |
| 135 | |
| 136 | # Gnulib (later checks). Putting them here rather than right after |
| 137 | # gl_EARLY avoids some redundant checks. |
| 138 | gl_INIT |
| 139 | |
| 140 | # Checks for library functions. |
| 141 | AC_CHECK_FUNCS_ONCE([setlocale]) |
| 142 | AM_WITH_DMALLOC |
| 143 | BISON_PREREQ_TIMEVAR |
| 144 | |
| 145 | # Gettext. |
| 146 | # We use gnulib, which is only guaranteed to work properly with the |
| 147 | # latest Gettext. |
| 148 | AM_GNU_GETTEXT([external], [need-ngettext]) |
| 149 | AM_GNU_GETTEXT_VERSION([0.18]) |
| 150 | BISON_I18N |
| 151 | |
| 152 | # Internationalized parsers. |
| 153 | AC_CONFIG_FILES([runtime-po/Makefile.in]) |
| 154 | # Autoconf macros for packages using internationalized parsers. |
| 155 | aclocaldir='${datadir}/aclocal' |
| 156 | AC_SUBST([aclocaldir]) |
| 157 | |
| 158 | # Create the benchmark script. |
| 159 | AC_CONFIG_FILES([etc/bench.pl], [chmod +x etc/bench.pl]) |
| 160 | |
| 161 | # Initialize the test suite. |
| 162 | AC_CONFIG_TESTDIR(tests) |
| 163 | AC_CONFIG_FILES([tests/Makefile tests/atlocal]) |
| 164 | AC_CONFIG_FILES([tests/bison], [chmod +x tests/bison]) |
| 165 | AC_CHECK_PROGS([VALGRIND], [valgrind]) |
| 166 | case $VALGRIND:$host_os in |
| 167 | '':*) ;; |
| 168 | *:darwin*) |
| 169 | # See README-hacking. |
| 170 | # VALGRIND+=' --suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind' |
| 171 | VALGRIND=;; |
| 172 | *:*) |
| 173 | AC_SUBST([VALGRIND_PREBISON], ["$VALGRIND -q"]);; |
| 174 | esac |
| 175 | |
| 176 | AM_MISSING_PROG([AUTOM4TE], [autom4te]) |
| 177 | # Needed by tests/atlocal.in. |
| 178 | AC_SUBST([GCC]) |
| 179 | |
| 180 | gt_JAVACOMP([1.3]) |
| 181 | gt_JAVAEXEC |
| 182 | |
| 183 | AC_CONFIG_FILES([Makefile |
| 184 | build-aux/Makefile |
| 185 | po/Makefile.in |
| 186 | data/Makefile |
| 187 | etc/Makefile |
| 188 | examples/Makefile |
| 189 | examples/calc++/Makefile |
| 190 | lib/Makefile src/Makefile |
| 191 | doc/Makefile |
| 192 | doc/yacc.1]) |
| 193 | AC_OUTPUT |