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-rw-r--r--src/glx/glxcmds.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index 7b62be34415..5c79073a9cc 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -912,8 +912,10 @@ init_fbconfig_for_chooser(struct glx_config * config,
/* Test that all bits from a are contained in b */
#define MATCH_MASK(param) \
do { \
- if ((a->param & ~b->param) != 0) \
+ if ( ((int) a-> param != (int) GLX_DONT_CARE) \
+ && ((a->param & ~b->param) != 0) ) { \
return False; \
+ } \
} while (0);
/**