necessary, because we can change the value of INCLUDES globally in one
place (configure.in).
Also add two defines in thread-safe mode
(_REENTRANT and POSIX_PTHREAD_SEMANTICS)
with libtool components
* SAPI targets can enable thread-safe mode and define
shared/static/program build target
* all configure scripts use the same config.cache
* phplibdir is $(top_builddir)/modules to avoid
permission problems
* sapi/*/Makefile.inc are gone
* runpath handling cleaned up
* top-level Makefile.in obsoleted through Makefile.am
* --enable-versioning uses libtool's cleaner and more
portable -export-symbols feature
* Fully implement ISAPI support - POST and cookies among other things.
* Almost completely rewrote phpinfo(). Allow modules to easily display their
information in phpinfo() without modifying phpinfo() itself (prototype for
the module info function was changed, thus the large amount of updated module
files).
* Initial extended SAPI support for Apache, completely untested.
* CGI now uses SAPI fully as well.
