OK, once we figured out that the AIX include scheme needed a simple include, and not the double-redirection that didn't work, ATHENA_INCLUDE started working fine. Now somebody made a '#define ATHENA_INCLUDE(a,b) SIMPLE_INCLUDE(a,b)', which trips over the same AIX preprocessor bug that STARTED this whole discussion. To sum up: Under AIX, '#define ATHENA_INCLUDE(a,b) <a/b>' works. Redirecting it any deeper through multiple #defines doesn't work. Yes, it's broken. Yes, there's a bug report open at IBM about it. I've appended the fix that I used to work around this - it's Ugly And Wrong, but got me a build... /Valdis *** lwlib/config.h.in.dist Mon Apr 3 16:16:37 2000 --- lwlib/config.h.in Mon Apr 3 16:19:16 2000 *************** *** 32,38 **** --- 32,42 ---- /* The path to the Athena widgets - the usual value is `X11/Xaw' */ #undef ATHENA_H_PATH #ifdef ATHENA_H_PATH + #if defined(_AIX) && !defined( __GNUC__) + # define ATHENA_INCLUDE(file) <ATHENA_H_PATH/file> + #else # define ATHENA_INCLUDE(file) SMART_INCLUDE (ATHENA_H_PATH,file) + #endif #else # define ATHENA_INCLUDE(file) <file> #endif