compile problem on rh 7.1 w/ apache 2.0.6

It goes through the configure process fine, but when i try to make on it it gives me this error: make[3]: Entering directory `/root/progs/php/php-4.0.6/sapi/apache' /bin/sh /root/progs/php/php-4.0.6/libtool --silent --mode=compile gcc -I. -I/ro ot/progs/php/php-4.0.6/sapi/apache -I/root/progs/php/php-4.0.6/main -I/root/ prog s/php/php-4.0.6 -I/www/include -I/root/progs/php/php-4.0.6/Zend -I/root/prog s/ph p/php-4.0.6/ext/mysql/libmysql -I/root/progs/php/php-4.0.6/ext/xml/expat/xml tok -I/root/progs/php/php-4.0.6/ext/xml/expat/xmlparse -I/root/progs/php/php-4.0 .6/T SRM -DSUPPORT_UTF8 -DXML_BYTE_ORDER=12 -g -O2 -c sapi_apache.c sapi_apache.c: In function `apache_php_module_main': sapi_apache.c:80: `NOT_FOUND' undeclared (first use in this function) sapi_apache.c:80: (Each undeclared identifier is reported only once sapi_apache.c:80: for each function it appears in.) make[3]: *** [sapi_apache.lo] Error 1 make[3]: Leaving directory `/root/progs/php/php-4.0.6/sapi/apache' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/root/progs/php/php-4.0.6/sapi/apache' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/root/progs/php/php-4.0.6/sapi' make: *** [all-recursive] Error 1 I'm trying to compile it as a module so i can load it into an already configured apache. justin