omx: fix build with gcc 10

bellagio/omx header files reference a global variable without the
extern keyworkd.
Now that gcc-10 enables the '-fno-common' by default the build fails.
Since these are external headers we can't easily fix them, so for
now build the omx module with the '-fcommon' flag to keep the
previous behavior.

See https://gitlab.freedesktop.org/mesa/mesa/issues/2385

Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4058>

diff --git a/src/gallium/state_trackers/omx/meson.build b/src/gallium/state_trackers/omx/meson.build
index 3aa82090c91403bddeb1729ba13cdad972faae36..987d3e23c84d21cc25e18e4e3ad2e53253fe9274 100644 (file)
--- a/src/gallium/state_trackers/omx/meson.build
+++ b/src/gallium/state_trackers/omx/meson.build
@@ -65,7 +65,7 @@ endif
 libomx_st = static_library(
   'omx_st',
   files_omx,
-  c_args : [c_vis_args],
+  c_args : [c_vis_args, '-fcommon'],
   include_directories : inc_st_omx,
   dependencies : dep_st_omx,
 )