159 lines
5.6 KiB
Plaintext
159 lines
5.6 KiB
Plaintext
# Copyright (C) 1993, 1997-1999, 2002-2003, 2006, 2009, 2011-2013, 2015, 2018
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# Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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AC_PREREQ([2.65])
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AC_INIT([GNU patch],
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m4_esyscmd([build-aux/git-version-gen .tarball-version]),
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[bug-patch@gnu.org])
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AC_CONFIG_SRCDIR([src/patch.c])
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AC_CONFIG_AUX_DIR([build-aux])
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AC_CONFIG_MACRO_DIR([m4])
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AC_ARG_ENABLE([merge],
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[AS_HELP_STRING([--disable-merge],
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[disable support for merging])])
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AM_CONDITIONAL([ENABLE_MERGE], [test "$enableval" != no])
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AM_CONDITIONAL([ALPHA_VERSION],
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[[echo "$PACKAGE_VERSION" | grep -- "-[0-9a-f][0-9a-f]*\\(-dirty\\)\\?$" >/dev/null]])
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AM_INIT_AUTOMAKE([1.11.2 -Wall gnu dist-bzip2 dist-xz color-tests parallel-tests])
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AM_SILENT_RULES([yes])
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AC_CONFIG_HEADERS([config.h:config.hin])
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AC_PROG_CC
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AC_PROG_CC_STDC
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gl_EARLY
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gl_USE_SYSTEM_EXTENSIONS
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AC_HEADER_STDC
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gl_INIT
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AM_PROG_AR
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AC_ARG_ENABLE([gcc-warnings],
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[AS_HELP_STRING([--enable-gcc-warnings],
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[turn on lots of GCC warnings (for developers)])],
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[case $enableval in
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yes|no) ;;
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*) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
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esac
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gl_gcc_warnings=$enableval],
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[gl_gcc_warnings=no]
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)
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if test "$gl_gcc_warnings" = yes; then
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gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
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AC_SUBST([WERROR_CFLAGS])
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nw=
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# This, $nw, is the list of warnings we disable.
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nw="$nw -Wdeclaration-after-statement" # too useful to forbid
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nw="$nw -Waggregate-return" # anachronistic
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nw="$nw -Wlong-long" # C90 is anachronistic (lib/gethrxtime.h)
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nw="$nw -Wc++-compat" # We don't care about C++ compilers
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nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
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nw="$nw -Wtraditional" # Warns on #elif which we use often
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nw="$nw -Wcast-qual" # Too many warnings for now
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nw="$nw -Wconversion" # Too many warnings for now
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nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
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nw="$nw -Wsign-conversion" # Too many warnings for now
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nw="$nw -Wtraditional-conversion" # Too many warnings for now
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nw="$nw -Wunreachable-code" # Too many warnings for now
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nw="$nw -Wpadded" # Our structs are not padded
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nw="$nw -Wredundant-decls" # openat.h declares e.g., mkdirat
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nw="$nw -Wlogical-op" # any use of fwrite provokes this
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nw="$nw -Wformat-nonliteral" # who.c and pinky.c strftime uses
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nw="$nw -Wvla" # warnings in gettext.h
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nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
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nw="$nw -Wswitch-enum" # Too many warnings for now
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nw="$nw -Wswitch-default" # Too many warnings for now
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nw="$nw -Wstack-protector" # not worth working around
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nw="$nw -Wmissing-format-attribute" # not worth working around in patch
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nw="$nw -Wsuggest-attribute=format" # warns about util.c
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# things to fix soon:
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nw="$nw -Wshadow"
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nw="$nw -Wstrict-overflow"
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nw="$nw -Wunsafe-loop-optimizations"
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# nw="$nw -Wfloat-equal" # sort.c, seq.c
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# nw="$nw -Wmissing-format-attribute" # copy.c
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# nw="$nw -Winline" # system.h's readdir_ignoring_dot_and_dotdot
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# ?? -Wstrict-overflow
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gl_MANYWARN_ALL_GCC([ws])
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gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
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for w in $ws; do
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gl_WARN_ADD([$w])
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done
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gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
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gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
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gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
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# In spite of excluding -Wlogical-op above, it is enabled, as of
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# gcc 4.5.0 20090517, and it provokes warnings in cat.c, dd.c, truncate.c
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gl_WARN_ADD([-Wno-logical-op])
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gl_WARN_ADD([-fdiagnostics-show-option])
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gl_WARN_ADD([-funit-at-a-time])
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gl_WARN_ADD([-Wno-format-nonliteral])
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AC_SUBST([WARN_CFLAGS])
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AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
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AC_DEFINE([_FORTIFY_SOURCE], [2],
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[enable compile-time and run-time bounds-checking, and some warnings])
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AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
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# We use a slightly smaller set of warning options for lib/.
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# Remove the following and save the result in GNULIB_WARN_CFLAGS.
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nw=
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nw="$nw -Wuninitialized"
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nw="$nw -Wunused-macros"
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nw="$nw -Wmissing-prototypes"
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nw="$nw -Wold-style-definition"
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gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
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AC_SUBST([GNULIB_WARN_CFLAGS])
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# For gnulib-tests, the set is slightly smaller still.
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nw=
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nw="$nw -Wstrict-prototypes"
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gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
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[$GNULIB_WARN_CFLAGS], [$nw])
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AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
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fi
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AC_TYPE_MODE_T
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AC_TYPE_OFF_T
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gl_SIZE_MAX
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gl_FUNC_XATTR
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AC_CHECK_FUNCS(geteuid getuid raise sigaction sigprocmask sigsetmask)
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AC_FUNC_SETMODE_DOS
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AC_PATH_PROG([ED], [ed], [ed])
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AC_DEFINE_UNQUOTED([EDITOR_PROGRAM], ["$ED"], [Name of editor program.])
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AC_CONFIG_FILES([
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Makefile
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lib/Makefile
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src/Makefile
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tests/Makefile
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])
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AC_OUTPUT
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