[Libguestfs] [nbdkit PATCH 2/2] include: Properly decorate attributes in public headers

gcc and clang intentionally support __decorated__ forms of all attribute arguments (in the namespace reserved to the compiler implementation), precisely so that any public header does not risk mis-compilation in the face of a language-compliant user-defined macro that collides with the bare-word counterpart. We don't have to decorate our attribute usage in .c files, because there we are in control of making sure no collisions will interfere. Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; --- include/nbdkit-common.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/nbdkit-common.h b/include/nbdkit-common.h index 3177878..5e69579 100644 --- a/include/nbdkit-common.h +++ b/include/nbdkit-common.h @@ -51,10 +51,10 @@ extern "C" { #define NBDKIT_THREAD_MODEL_PARALLEL 3 extern void nbdkit_error (const char *msg, ...) - __attribute__((format (printf, 1, 2))); + __attribute__((__format__ (__printf__, 1, 2))); extern void nbdkit_verror (const char *msg, va_list args); extern void nbdkit_debug (const char *msg, ...) - __attribute__((format (printf, 1, 2))); + __attribute__((__format__ (__printf__, 1, 2))); extern void nbdkit_vdebug (const char *msg, va_list args); extern char *nbdkit_absolute_path (const char *path); -- 2.14.3