Specify hidden visibility for global data symbol declarations

'-fvisibility=hidden' only applies to definitions, not declarations,
so the compiler has to be conservative about how references to global
data symbols are performed.

Explicitly specifying the visibility allows for better code generation.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cpu.h b/src/cpu.h
index 68fbaec..8f70fef 100644
--- a/src/cpu.h
+++ b/src/cpu.h
@@ -43,8 +43,8 @@
 #include "src/x86/cpu.h"
 #endif
 
-extern unsigned dav1d_cpu_flags;
-extern unsigned dav1d_cpu_flags_mask;
+EXTERN unsigned dav1d_cpu_flags;
+EXTERN unsigned dav1d_cpu_flags_mask;
 
 void dav1d_init_cpu(void);
 DAV1D_API void dav1d_set_cpu_flags_mask(unsigned mask);