Always compile the kvm-unit-tests with -fno-common
The new GCC v10 uses -fno-common by default. To avoid that we commit
code that declares global variables twice and thus fails to link with
the latest version, we should also compile with -fno-common when using
older versions of the compiler. However, this now also means that we
can not play the trick with the common auxinfo struct anymore. Thus
declare it as extern in the header now and link auxinfo.c on x86, too.
Message-Id: <20200514192626.9950-6-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/Makefile b/Makefile
index 754ed65..3ff2f91 100644
--- a/Makefile
+++ b/Makefile
@@ -49,7 +49,7 @@
cc-option = $(shell if $(CC) -Werror $(1) -S -o /dev/null -xc /dev/null \
> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
-COMMON_CFLAGS += -g $(autodepend-flags) -fno-strict-aliasing
+COMMON_CFLAGS += -g $(autodepend-flags) -fno-strict-aliasing -fno-common
COMMON_CFLAGS += -Wall -Wwrite-strings -Wempty-body -Wuninitialized
COMMON_CFLAGS += -Wignored-qualifiers -Werror
