android: pass -std=c99 by default
Several modules expect a C99 compiler already. It is also the default for
Makefile build.
diff --git a/Android.common.mk b/Android.common.mk
index f28ddc2..e8b9006 100644
--- a/Android.common.mk
+++ b/Android.common.mk
@@ -21,6 +21,15 @@
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
+# use c99 compiler by default
+ifeq ($(LOCAL_CC),)
+ifeq ($(LOCAL_IS_HOST_MODULE),true)
+LOCAL_CC := $(HOST_CC) -std=c99
+else
+LOCAL_CC := $(TARGET_CC) -std=c99
+endif
+endif
+
LOCAL_C_INCLUDES += \
$(MESA_TOP)/include