Failed Install

Solaris 2.6, Apache 1.3.6 and php-4.0b2 The install fails at: gcc -DHAVE_CONFIG_H -I. -I. -I../.. -I../../libzend -I../../TSRM -I/usr/local/src/php-4.0b2/../apache_1.3.6/src/include -I/usr/local /src/php-4.0b2/../apache_1.3.6/src/os/unix -I/usr/local/include/mysql -I../.. -I../../libzend -g -O2 -g -O2 -c browscap.c In file included from ../../php_regex.h:5, from browscap.c:22: ../../regex/regex.h:31: warning: `REG_EXTENDED' redefined /usr/include/regex.h:28: warning: this is the location of the previous definition ../../regex/regex.h:32: warning: `REG_ICASE' redefined /usr/include/regex.h:30: warning: this is the location of the previous definition ........... In file included from ../../php_regex.h:5, from browscap.c:22: ../../regex/regex.h:15: conflicting types for `regoff_t' /usr/include/regex.h:23: previous declaration of `regoff_t' .......... *** Error code 1 make: Fatal error: Command failed for target `browscap.o' Current working directory /usr/local/src/php-4.0b2/ext/standard *** Error code 1 make: Fatal error: Command failed for target `all-recursive' Current working directory /usr/local/src/php-4.0b2/ext Any help to solve this problem will be much appreciated. TIA.