* always add -std=c99 when netlink.h is not present

git-svn-id: file:///home/lennart/svn/public/avahi/trunk@847 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe

diff --git a/configure.ac b/configure.ac
index ecc112081b674a75025648ed5e23e584aadde154..f4080f7a52b9f06d5ed4b117225dea26cc8eb37b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -157,24 +157,28 @@ 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 $DESIRED_FLAGS"
-        AC_MSG_RESULT([yes])
+    if test "x$HAVE_NETLINK" = "xyes" ; then
+        # 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"
     else
-        AC_MSG_RESULT([no])
+        DESIRED_FLAGS="-std=c99 $DESIRED_FLAGS"
     fi
 
-    CFLAGS="$OLDCFLAGS"
-
     for flag in $DESIRED_FLAGS ; do
         AC_MSG_CHECKING([whether $CC accepts $flag])
         if test_gcc_flag $flag ; then