+ACX_PTHREAD(,AC_MSG_ERROR([Missing POSIX Threads support]))
+
+#
+# Detecting the linux distribution for specific things like init scripts.
+#
+AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO],[Specify the Linux distribution to target: One of debian, gentoo, archlinux or none]))
+if test "z$with_distro" = "z"; then
+ AC_CHECK_FILE(/etc/SuSE-release,with_distro="suse")
+ AC_CHECK_FILE(/etc/gentoo-release,with_distro="gentoo")
+ AC_CHECK_FILE(/etc/arch-release,with_distro="archlinux")
+ AC_CHECK_FILE(/etc/debian_version,with_distro="debian")
+fi
+with_distro=`echo ${with_distro} | tr '[[:upper:]]' '[[:lower:]]' `
+
+if test "z$with_distro" = "z"; then
+ AC_MSG_ERROR([Linux distribution autodetection failed, you must specify the distribution to target using --with-distro=DISTRO, set DISTRO to none if your distribution is not supported.])
+ exit 1
+else
+case $with_distro in
+ debian|gentoo|archlinux|suse|none)
+ ;;
+ *)
+ AC_MSG_ERROR([Your distribution (${with_distro}) is not yet supported, init scripts and dbus configuration will not be installed! (patches welcome), you can specify --with-distro=none to skip this check])
+ ;;
+esac
+fi
+
+AM_CONDITIONAL(TARGET_SUSE, test x"$with_distro" = xsuse)
+AM_CONDITIONAL(TARGET_GENTOO, test x"$with_distro" = xgentoo)
+AM_CONDITIONAL(TARGET_DEBIAN, test x"$with_distro" = xdebian)
+AM_CONDITIONAL(TARGET_ARCHLINUX, test x"$with_distro" = xarchlinux)
+
+test_gcc_flag() {
+ AC_LANG_CONFTEST([int main() {}])
+ $CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null
+ ret=$?
+ rm -f conftest.o
+ return $ret
+}
+
+# If using GCC specify some additional parameters
+if test "x$GCC" = "xyes" ; then
+
+ DESIRED_FLAGS="-Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wlarger-than-4000 -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter"
+
+ # Test whether rtnetlink.h can be included when compiled with -std=c99
+ # some distributions (e.g. archlinux) have broken headers that dont
+ # define __u64 with -std=c99
+ AC_MSG_CHECKING([checking whether rtnetlink.h can be included with -std=c99])
+ OLDCFLAGS="$CFLAGS"
+ CFLAGS="-std=c99"
+ AC_TRY_COMPILE([#include <linux/rtnetlink.h>], [],
+ use_stdc99=yes, use_stdc99=no)
+
+ if test x"$use_stdc99" = xyes; then
+ DESIRED_FLAGS="-std=c99 $DESIRED_FLAGS"
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+
+ CFLAGS="$OLDCFLAGS"
+
+ for flag in $DESIRED_FLAGS ; do
+ AC_MSG_CHECKING([whether $CC accepts $flag])
+ if test_gcc_flag $flag ; then
+ CFLAGS="$CFLAGS $flag"
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+ done
+fi
+