[PATCH:libXvMC] Rename local err variable in XW_RSYM macro to avoid shadow warnings

[Alan Coopersmith]

Clears many warnings of the form:

XvMCWrapper.c: In function 'initW':
XvMCWrapper.c:362:5: warning: declaration of 'err' shadows a previous local [-Wshadow]
XvMCWrapper.c:267:11: warning: shadowed declaration is here [-Wshadow]

due to variable declared in macro block sharing "err" name with a
variable declared in the function calling the macro.

Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
---
 wrapper/XvMCWrapper.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/wrapper/XvMCWrapper.c b/wrapper/XvMCWrapper.c
index bff5a8b..9bdf033 100644
--- a/wrapper/XvMCWrapper.c
+++ b/wrapper/XvMCWrapper.c
@@ -178,15 +178,15 @@ static void *handle2;
 
 #define XW_RSYM(base,handle,handle2,pointer, retval)			\
     do {								\
-	register char *err;						\
+	register char *symerr;						\
 	base.pointer = (pointer##P) dlsym((handle),#pointer);		\
-	if ((err = dlerror()) != NULL) {				\
+	if ((symerr = dlerror()) != NULL) {				\
 	    if (!handle2) {						\
-		fprintf(stderr,"%s\n",err); return retval;		\
+		fprintf(stderr,"%s\n",symerr); return retval;		\
 	    }								\
 	    base.pointer = (pointer##P) dlsym((handle2),#pointer);	\
-	    if ((err = dlerror()) != NULL) {				\
-		fprintf(stderr,"%s\n",err); return retval;		\
+	    if ((symerr = dlerror()) != NULL) {				\
+		fprintf(stderr,"%s\n",symerr); return retval;		\
 	    }								\
 	}								\
     } while (0);
-- 
1.7.9.2