autoconf-2.5x users: HEADS UP

If you want to use autoconf-2.5x with PHP, make sure that you run a "./cvsclean" after "cvs update". Autoconf-2.5x will not correctly rebuild configure/php_config.h in many cases. This happens under the following circumstances: - configure.in, acinclude.m4 did not change - any config.m4 was updated Due to its architectural slowness, autoconf-2.5x includes a cache which fails to properly detect or check dependencies. It is becoming more and more apparent that there is a need for forking autoconf-2.13 and merging positive changes from 2.5x. Try it out yourself: $ echo "echo hi" >> ext/ircg/config.m4 $ ./buildconf $ grep "echo hi" configure|wc -l 0 $ ./cvsclean $ ./buildconf $ grep "echo hi" configure|wc -l 1 - Sascha