Getting PHP to build under Cygwin is NOT trivial;
While not strictly trivial, it's not hard at all. It required me no patches or whatever. That is, if you keep your track on building static stuff (CGI/FCGI, CLI, static in apache or the likes, but not apxs/apxs2, .SO and the likes). I compiled it numerous times successfully. Just install the right libs/packages and it will compile fine.
for reference, here's roughly my configure for php 5.1.2 (wrapped in a build script) ./configure \ --prefix=/opt/php \ --disable-ipv6 --with-zlib --enable-bcmath \ --enable-calendar --disable-dom --enable-exif --enable-ftp --wi$ --with-gettext --enable-mbstring \ --with-mysql=/opt/mysql --enable-pcntl \ --with-readline --without-pear \ --enable-fastcgi then make && make install then I just do this, for convenience: cp sapi/cli/php.exe /opt/php/bin/php_cli.exe ln -sf /opt/php/bin/php_cli.exe /usr/bin/php cp php.ini-dist /etc/php.ini.default if [ -e /etc/php.ini ]; then echo "/etc/php.ini preserved" else cp /etc/php.ini.default /etc/php.ini fi ln -sf /etc/php.ini /opt/php/lib/php.ini that's all. cli+cgi/fcgi on one run. Lloeki