Switch default C environment from c99 to gnu99
Since TF uses GCC extensions, switch the C environment
from c99 to gnu99.
This change allows armclang to build TF.
Change-Id: Iaacb2726ba1458af59faf607ae9405d6eedb9962
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
diff --git a/Makefile b/Makefile
index d9a29bd..5396c0e 100644
--- a/Makefile
+++ b/Makefile
@@ -135,8 +135,8 @@
-D__ASSEMBLY__ -ffreestanding \
-Wa,--fatal-warnings
TF_CFLAGS += $(CPPFLAGS) $(TF_CFLAGS_$(ARCH)) \
- -ffreestanding -fno-builtin -Wall -std=c99 -Os \
- -ffunction-sections -fdata-sections
+ -ffreestanding -fno-builtin -Wall -std=gnu99 \
+ -Os -ffunction-sections -fdata-sections
LDFLAGS += --fatal-warnings -O1
LDFLAGS += --gc-sections