[klibc] [kvm-unit-tests PATCH v3 3/4] Kbuild: Add "-fcommon" for clang builds

[Bill Wendling]

Clang defaults to "-fno-common" which causes linking errors because of
duplicate symbols in the BSS section.

Signed-off-by: Bill Wendling <morbo at google.com>
---
 scripts/Kbuild.klibc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/Kbuild.klibc b/scripts/Kbuild.klibc
index ca2539d6..59cc7cf4 100644
--- a/scripts/Kbuild.klibc
+++ b/scripts/Kbuild.klibc
@@ -70,6 +70,7 @@ KLIBCREQFLAGS     := $(call cc-option, -fno-stack-protector, ) \
                      $(call cc-option, -fwrapv, ) \
                      $(call cc-option, -fno-PIE, ) \
                      $(call cc-option, -fno-builtin-bcmp, ) \
+                     $(call cc-option, -fcommon, ) \
                      -ggdb
 KLIBCARCHREQFLAGS :=
 KLIBCOPTFLAGS     :=
-- 
2.26.0.rc2.310.g2932bb562d-goog