meson: Add -fcommon to cc_flags

Now that we've fixed a bunch of build breakages on systems where
-fcommon is the default (gcc 10+), let's start building with -fcommon by
default so we can make sure things don't break with this in the future.
Supposedly it's supposed to be able to generate better code anyway!

Signed-off-by: Lyude Paul <lyude@redhat.com>
Acked-by: Petri Latvala <petri.latvala@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/meson.build b/meson.build
index bcb69e1c7..0d7092bde 100644
--- a/meson.build
+++ b/meson.build
@@ -70,6 +70,7 @@ cc_args = [
 # well with longjmp which is heavily used by IGT framework.
 	'-fno-builtin-malloc',
 	'-fno-builtin-calloc',
+	'-fcommon',
 ]
 
 foreach cc_arg : cc_args