[S] Change in coreboot[master]: soc/cavium: Guard gcc specific compiler flag

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74540 )

Change subject: soc/cavium: Guard gcc specific compiler flag
......................................................................

soc/cavium: Guard gcc specific compiler flag

TEST: BUILD_TIMELESS=1 remains the same.

Change-Id: I740b59574303145fc673a97556367daefe8d1540
Signed-off-by: Arthur Heymans 
---
M src/soc/cavium/common/Makefile.inc
1 file changed, 14 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/74540/1

diff --git a/src/soc/cavium/common/Makefile.inc b/src/soc/cavium/common/Makefile.inc
index 3ca81e7..6fa2c31 100644
--- a/src/soc/cavium/common/Makefile.inc
+++ b/src/soc/cavium/common/Makefile.inc
@@ -5,7 +5,9 @@
 subdirs-y += pci

# -Wstack-usage doesn't recognize hexadecimal numbers.
+ifeq ($(CONFIG_COMPILER_GCC),y)
 CFLAGS_arm64   += -Wstack-usage=$(shell printf "%d" $(CONFIG_STACK_SIZE))
+endif

bootblock-$(CONFIG_BOOTBLOCK_CUSTOM) += bootblock.c