cdefs: allow __attribute__ on tcc

According to the tcc (tiny C compiler) Changelog, tcc supports
__attribute__ since 0.9.3.  Looking at history of tcc at
<https://repo.or.cz/tinycc.git>, __attribute__ support was added
in commit 14658993425878be300aae2e879560698e0c6c4c on 2002-01-03,
which also looks like the release of 0.9.3.  While I'm unable to
find release tags for tcc before 0.9.18 (2003-04-14), the next
release (0.9.28) will include __attribute__((cleanup(func)) which
I rely on.

Reviewed-by: Collin Funk <collin.funk1@gmail.com>

diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 215ff937ee9c8eb85ebd9412c0ff5a93c6809f3f..f74671086e31c78d56fc1c512f570d59c852d45f 100644 (file)
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -438,10 +438,10 @@
 */
 #endif
 
-/* GCC and clang have various useful declarations that can be made with
-   the '__attribute__' syntax.  All of the ways we use this do fine if
-   they are omitted for compilers that don't understand it.  */
-#if !(defined __GNUC__ || defined __clang__)
+/* GCC, clang, and compatible compilers have various useful declarations
+   that can be made with the '__attribute__' syntax.  All of the ways we use
+   this do fine if they are omitted for compilers that don't understand it.  */
+#if !(defined __GNUC__ || defined __clang__ || defined __TINYC__)
 # define __attribute__(xyz)    /* Ignore */
 #endif