Build problems

Hello, I'm building 4.0.4pl1 on RedHat 6.2 with all updates applied. It configures OK and then when issue "make" i get: [root@fenris php-4.0.4pl1]# make Making all in Zend make[1]: Entering directory `/home/curtis/php-4.0.4pl1/Zend' /bin/sh ../libtool --silent --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I../main -DLINUX=2 -DEAPI -DUSE_EXPAT -DXML_BYTE_ORDER=12 -g -O2 -c zend_language_sca nner.c In file included from /usr/include/errno.h:36, from zend_language_scanner.c:2619: /usr/include/bits/errno.h:25: linux/errno.h: No such file or directory In file included from /usr/include/bits/posix1_lim.h:126, from /usr/include/limits.h:30, from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/include/li mits.h:117, from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/include/sy slimits.h:7, from /usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66/include/li mits.h:11, from zend_language_scanner.c:2620: /usr/include/bits/local_lim.h:27: linux/limits.h: No such file or directory make[1]: *** [zend_language_scanner.lo] Error 1 make[1]: Leaving directory `/home/curtis/php-4.0.4pl1/Zend' make: *** [all-recursive] Error 1 Any one have any clues? I can't get 3.0.16 to build either and I need mysql support. If anyone knows where I can find functional RPM's that would be OK, too. Curtis