+2025-04-07 Bruno Haible <bruno@clisp.org>
+
+ verify: Enhance a comment.
+ * lib/verify.h (_GL_COUNTER): Reference portability study regarding
+ __COUNTER__.
+
2025-04-07 Bruno Haible <bruno@clisp.org>
stdioext: Update comments regarding Haiku.
#define _GL_CONCAT0(x, y) x##y
/* _GL_COUNTER is an integer, preferably one that changes each time we
- use it. Use __COUNTER__ if it works, falling back on __LINE__
- otherwise. __LINE__ isn't perfect, but it's better than a
- constant. */
+ use it. Use __COUNTER__ if it works (it does so with most compilers,
+ see <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3457.htm>),
+ falling back on __LINE__ otherwise. __LINE__ isn't perfect, but it's
+ better than a constant. */
#if defined __COUNTER__ && __COUNTER__ != __COUNTER__
# define _GL_COUNTER __COUNTER__
#else