dnl Check for tools
dnl
AC_PROG_CC_C99
+AC_USE_SYSTEM_EXTENSIONS
AM_PROG_CC_C_O
AC_PROG_CXX
-eval "${CXX} --version" >/dev/null 2>&1 || CXX=""
-if test "${CXX}" != ""; then
- AC_PROG_CXXCPP
-fi
+AC_PROG_OBJC
+_AM_DEPENDENCIES([OBJC])
+AC_PROG_EGREP
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AM_PROG_AS
-dnl AC_PROG_EGREP only exists in autoconf 2.54+, so we use AC_EGREP_CPP right
-dnl now otherwise it might be set in an obscure if statement.
-AC_EGREP_CPP(foo,foo)
-
-dnl AC_PROG_OBJC doesn't seem to exist, this is the KDE workaround
-AC_MSG_CHECKING(for an Objective-C compiler)
-OBJC="${CXX}"
-AC_SUBST(OBJC)
-OBJCFLAGS="${CXXFLAGS} -fgnu-runtime -fconstant-string-class=NSConstantString"
-AC_SUBST(OBJCFLAGS)
-dnl _AM_DEPENDENCIES(OBJC) doesn't work, so hard code OBJCDEPMODE here
-#OBJCDEPMODE="depmode=gcc3"
-#AC_SUBST(OBJCDEPMODE)
-_AM_DEPENDENCIES(OBJC)
-AC_MSG_RESULT(not implemented yet)
-
dnl Find the right ranlib, even when cross-compiling
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(STRIP, strip, :)
# fi
#done
-AC_CACHE_CHECK([if \$CC accepts -Wall],
+AC_CACHE_CHECK([if $CC accepts -Wall],
[ac_cv_c_Wall],
[CFLAGS="-Wall ${CFLAGS_save}"
AC_TRY_COMPILE([],,ac_cv_c_Wall=yes, ac_cv_c_Wall=no)])
-AC_CACHE_CHECK([if \$CC accepts -Wconversion],
+AC_CACHE_CHECK([if $CC accepts -Wextra],
+ [ac_cv_c_Werror],
+ [CFLAGS="-Werror ${CFLAGS_save}"
+ AC_TRY_COMPILE([],,ac_cv_c_Werror=yes, ac_cv_c_Werror=no)])
+
+AC_CACHE_CHECK([if $CC accepts -Wconversion],
[ac_cv_c_Wconversion],
[CFLAGS="-Wconversion ${CFLAGS_save}"
AC_TRY_COMPILE([],,ac_cv_c_Wconversion=yes, ac_cv_c_Wconversion=no)])
-AC_CACHE_CHECK([if \$CC accepts -Wunreachable-code],
+AC_CACHE_CHECK([if $CC accepts -Wunreachable-code],
[ac_cv_c_Wunreachable_code],
[CFLAGS="-Wunreachable-code ${CFLAGS_save}"
AC_TRY_COMPILE([],,ac_cv_c_Wunreachable_code=yes, ac_cv_c_Wunreachable_code=no)])
-AC_CACHE_CHECK([if \$CC accepts -Wsign-compare],
+AC_CACHE_CHECK([if $CC accepts -Wsign-compare],
[ac_cv_c_Wsign_compare],
[CFLAGS="-Wsign-compare ${CFLAGS_save}"
AC_TRY_COMPILE([],,ac_cv_c_Wsign_compare=yes, ac_cv_c_Wsign_compare=no)])
OBJCFLAGS_save="-Wall ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
fi
+if test "${ac_cv_c_Wextra}" != "no"; then
+ CFLAGS_save="-Wextra ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
+ CXXFLAGS_save="-Wextra ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
+ OBJCFLAGS_save="-Wextra ${OBJCFLAGS_save}"; OBJCFLAGS="${OBJCFLAGS_save}"
+fi
+
if test "${ac_cv_c_Wsign_compare}" != "no"; then
CFLAGS_save="-Wsign-compare ${CFLAGS_save}"; CFLAGS="${CFLAGS_save}"
CXXFLAGS_save="-Wsign-compare ${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
# Replacements for autoconf 2.59 and older
# Please make official source tarballs with recent autoconf only.
+# Copyright (C) 2006 Rémi Denis-Courmont.
+# Distribution and usage of this file, verbatim or modified, is permitted
+# with no limitations.
AC_DEFUN([AC_PROG_CC_C00],
[ AC_REQUIRE([AC_PROG_CC])dnl
CC="$CC -std=c99"
])
+
+AC_DEFUN([AC_PROG_OBJC], [ ])
+
+AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
+[ AC_DEFINE([_GNU_SOURCE], [ ], [Enable lots of stuff with glibc.])
+])
+