--- DevIL-1.7.2/configure.ac.orig	2008-10-22 22:30:53.081626650 +0200
+++ DevIL-1.7.2/configure.ac	2008-10-22 22:44:29.328824639 +0200
@@ -75,11 +75,23 @@
 	[AC_DEFINE(RESTRICT_KEYWORD,,restric keyword available)]
 	[AC_MSG_RESULT(yes)]
 	[CFLAGS="$TMP_CFLAGS"]
-	[ADD_CFLAGS(-std=gnu99 -fgnu89-inline)]
+	[ADD_CFLAGS(-std=gnu99)]
 	,[AC_MSG_RESULT(no)]
 	 [CFLAGS="$TMP_CFLAGS"])
 ])
 
+dnl checking if the -fgnu89-inline flag is available
+TMP_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -fgnu89-inline"
+AC_MSG_CHECKING([gnu89-inline option])
+AC_COMPILE_IFELSE([[void main(void){}]],
+	[AC_MSG_RESULT(yes)]
+	[CFLAGS="$TMP_CFLAGS"]
+	[ADD_CFLAGS(-fgnu89-inline)]
+	,[AC_MSG_RESULT(no)]
+	 [CFLAGS="$TMP_CFLAGS"])
+
+
 dnl must add AC_CACHE_CHECK support where possible
 
 AM_INIT_AUTOMAKE("DevIL", $DEVIL_MAJOR.$DEVIL_MINOR.$DEVIL_REVISION)