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Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..ab6af5c --- /dev/null +++ b/configure.ac @@ -0,0 +1,161 @@ +# Configure template for GNU Diffutils. + +# Copyright (C) 1994-1995, 1998, 2001-2002, 2004, 2006, 2009-2010 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 3 of the License, 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(2.61) + +AC_INIT([GNU diffutils], + m4_esyscmd([build-aux/git-version-gen .tarball-version]), + [bug-diffutils@gnu.org]) + +AC_CONFIG_SRCDIR([src/diff.c]) +AC_CONFIG_AUX_DIR([build-aux]) +AC_CONFIG_MACRO_DIR([m4]) + +AM_INIT_AUTOMAKE([1.11 dist-xz color-tests parallel-tests]) +AM_SILENT_RULES([yes]) # make --enable-silent-rules the default. + +AC_CONFIG_HEADER([lib/config.h:lib/config.hin]) + +AC_PROG_AWK +AC_PROG_CC +AM_PROG_CC_STDC +AM_MISSING_PROG([HELP2MAN], [help2man]) +AC_PROG_RANLIB +gl_EARLY +gl_USE_SYSTEM_EXTENSIONS +AC_SYS_LARGEFILE +gl_INIT + +AC_ARG_ENABLE([gcc-warnings], + [AS_HELP_STRING([--enable-gcc-warnings], + [turn on lots of GCC warnings (for developers)])], + [case $enableval in + yes|no) ;; + *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; + esac + gl_gcc_warnings=$enableval], + [gl_gcc_warnings=no] +) + +if test "$gl_gcc_warnings" = yes; then + gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) + AC_SUBST([WERROR_CFLAGS]) + + nw= + # This, $nw, is the list of warnings we disable. + nw="$nw -Wdeclaration-after-statement" # too useful to forbid + nw="$nw -Waggregate-return" # anachronistic + nw="$nw -Wlong-long" # C90 is anachronistic (lib/gethrxtime.h) + nw="$nw -Wc++-compat" # We don't care about C++ compilers + nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib + nw="$nw -Wtraditional" # Warns on #elif which we use often + nw="$nw -Wcast-qual" # Too many warnings for now + nw="$nw -Wconversion" # Too many warnings for now + nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings + nw="$nw -Wsign-conversion" # Too many warnings for now + nw="$nw -Wtraditional-conversion" # Too many warnings for now + nw="$nw -Wunreachable-code" # Too many warnings for now + nw="$nw -Wpadded" # Our structs are not padded + nw="$nw -Wredundant-decls" # openat.h declares e.g., mkdirat + nw="$nw -Wlogical-op" # any use of fwrite provokes this + nw="$nw -Wformat-nonliteral" # who.c and pinky.c strftime uses + nw="$nw -Wvla" # warnings in gettext.h + nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__ + nw="$nw -Wswitch-enum" # Too many warnings for now + nw="$nw -Wswitch-default" # Too many warnings for now + nw="$nw -Wstack-protector" # not worth working around + # things I might fix soon: + nw="$nw -Wfloat-equal" # sort.c, seq.c + nw="$nw -Wmissing-format-attribute" # copy.c + nw="$nw -Wunsafe-loop-optimizations" # a few src/*.c + nw="$nw -Winline" # system.h's readdir_ignoring_dot_and_dotdot + nw="$nw -Wstrict-overflow" # expr.c, pr.c, tr.c, factor.c + nw="$nw -Wformat-extra-args" # sdiff.c + # ?? -Wstrict-overflow + + gl_MANYWARN_ALL_GCC([ws]) + gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw]) + for w in $ws; do + gl_WARN_ADD([$w]) + done + gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one + gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now + gl_WARN_ADD([-Wno-pointer-sign]) # Too many warnings for now + gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now + + # In spite of excluding -Wlogical-op above, it is enabled, as of + # gcc 4.5.0 20090517, and it provokes warnings in cat.c, dd.c, truncate.c + gl_WARN_ADD([-Wno-logical-op]) + + gl_WARN_ADD([-fdiagnostics-show-option]) + gl_WARN_ADD([-funit-at-a-time]) + + AC_SUBST([WARN_CFLAGS]) + + AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.]) + AC_DEFINE([_FORTIFY_SOURCE], [2], + [enable compile-time and run-time bounds-checking, and some warnings]) + AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks]) + + # We use a slightly smaller set of warning options for lib/. + # Remove the following and save the result in GNULIB_WARN_CFLAGS. + nw= + nw="$nw -Wunused-macros" + nw="$nw -Wmissing-prototypes" + nw="$nw -Wold-style-definition" + gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw]) + AC_SUBST([GNULIB_WARN_CFLAGS]) +fi + +AC_C_INLINE +AC_C_VARARRAYS + +AC_DEFINE([DEFAULT_EDITOR_PROGRAM], ["ed"], + [Name of editor program, unless overridden.]) + +AC_PATH_PROG([PR_PROGRAM], [pr], [""]) +AC_DEFINE_UNQUOTED([PR_PROGRAM], ["$PR_PROGRAM"], [Name of "pr" program.]) + +AC_CHECK_MEMBERS([struct stat.st_blksize]) +AC_CHECK_MEMBERS([struct stat.st_rdev]) +AC_HEADER_DIRENT +AC_HEADER_SYS_WAIT +AC_TYPE_PID_T + +AC_CHECK_FUNCS_ONCE([sigaction sigprocmask strcasecoll stricoll]) +if test $ac_cv_func_sigprocmask = no; then + AC_CHECK_FUNCS([sigblock]) +fi +AC_FUNC_CLOSEDIR_VOID +AC_FUNC_FORK + +AM_GNU_GETTEXT([external], [need-ngettext]) +AM_GNU_GETTEXT_VERSION([0.17]) +XGETTEXT="AWK='$AWK' \$(SHELL) \$(top_srcdir)/exgettext $XGETTEXT" + +AC_CONFIG_FILES([ + Makefile doc/Makefile + lib/Makefile + src/Makefile + tests/Makefile + gnulib-tests/Makefile + man/Makefile + po/Makefile.in + ms/Makefile +]) +AC_OUTPUT |