mesa: match against *-gnu* instead of *-gnu in configure.ac

Fixes build on arm-linux-gnueabi

diff --git a/configure.ac b/configure.ac
index d3a93645e801daf44c12a58b6cfc2e59b68808ea..6a99f3031e263ebafa0610a3e1c63344a67e4e87 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -83,7 +83,7 @@ dnl Compiler macros
 DEFINES=""
 AC_SUBST([DEFINES])
 case "$host_os" in
-*-gnu)
+*-gnu*)
 if test "x$GCC" = xyes; then
     DEFINES="$DEFINES -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_BSD_SOURCE"
 fi