I wrote:

That said, it's indeed a reasonable cleanup. I'll do that and some others shortly.

Fixed in the cvs HEAD version.

There are a few cases left though - in particular, do anyone know if #if DOS/MACOS/HAVE_WINSOCK can be replaced with #ifdef? I'm not touching them without word from someone who knows OpenLDAP on these platforms.

Besides, I still don't know if the "issues" you refer to are just compiler warnings, or errors - or if the one macro you reported was a special case. So while allowing -Wundef to catch macro typos is worthwhile, I likely won't do anything more unless I hear a reason to.

And I'd like to know what Plan 9 C says about this program:

BTW, will 9 C accept this (when you do not define FOO/BAR)? What error/warning messages, if any?

#if defined(FOO) && FOO /* Guard #if FOO with defined(FOO) */ int main() { return 2; } #elif BAR int main() { return 1; } #else int main() { return 0; } #endif