Hi, I am running into a case where different Autoconf-based packages define the same macros, giving me plenty of warnings. Is there a way to prefix the AC_DEFINE'd names with some unique string (or maybe just the ones defined by Autoconf, such as the HAVE_xxxx, the PACKAGE and VERSION, ...)? If not, wouldn't that be useful?
Also, it would be nice if AC_OUTPUT() would do the same as AC_CONFIG_HEADER(), i.e. not overwrite the file if it hasn't changed (or maybe a new kind of AC_OUTPUT macro). Packages like ICU for example work around the multiple definition problems by using AC_SUBST(ICU_xxx) for each defined thing they care about, and AC_OUTPUT(theconfheader.h). As a result, each time configure is run, all the dependencies go boink and everything has to be rebuilt :( YA -- Sailing is harder than flying. It's amazing that man learned how to sail first. -- Burt Rutan.
