Commit bd926893 authored by Emil Velikov's avatar Emil Velikov Committed by Pekka Paalanen

scanner: make use of __has_attribute()

A more generic way to evaluating various attributes, __has_attribute is
available with gcc, clang, even the Oracle/Sun compiler.
Signed-off-by: Emil Velikov's avatarEmil Velikov <emil.velikov@collabora.com>
Reviewed-by: Pekka Paalanen's avatarPekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: default avatarDerek Foreman <derekf@osg.samsung.com>
parent ab6b1569
......@@ -1744,7 +1744,11 @@ emit_code(struct protocol *protocol, enum visibility vis)
* we want to have the symbols hidden. */
if (vis == PRIVATE) {
symbol_visibility = "WL_PRIVATE";
printf("#if defined(__GNUC__) && __GNUC__ >= 4\n"
printf("#ifndef __has_attribute\n"
"# define __has_attribute(x) 0 /* Compatibility with non-clang compilers. */\n"
"#endif\n\n");
printf("#if (__has_attribute(visibility) || defined(__GNUC__) && __GNUC__ >= 4\n"
"#define WL_PRIVATE __attribute__ ((visibility(\"hidden\")))\n"
"#else\n"
"#define WL_PRIVATE\n"
......
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