Compiling Problems

I'm trying to compile PHP in Mac OS 10.3 with Apache 2.0. I get these errors consistently when building: ld: warning multiple definitions of symbol _pcre_free ext/pcre/pcrelib/pcre.o definition of _pcre_free in section (__DATA,__data) /opt/apache2/bin/httpd definition of _pcre_free ld: warning multiple definitions of symbol _pcre_fullinfo ext/pcre/pcrelib/pcre.o definition of _pcre_fullinfo in section (__TEXT,__text) /opt/apache2/bin/httpd definition of _pcre_fullinfo ld: warning multiple definitions of symbol _pcre_malloc ext/pcre/pcrelib/pcre.o definition of _pcre_malloc in section (__DATA,__data) /opt/apache2/bin/httpd definition of _pcre_malloc ld: warning multiple definitions of symbol _regcomp /opt/apache2/bin/httpd definition of _regcomp /usr/lib/libm.dylib(regcomp.So) definition of _regcomp ld: warning multiple definitions of symbol _regexec /opt/apache2/bin/httpd definition of _regexec /usr/lib/libm.dylib(regexec.So) definition of _regexec ld: warning multiple definitions of symbol _regfree /opt/apache2/bin/httpd definition of _regfree /usr/lib/libm.dylib(regfree.So) definition of _regfree ld: Undefined symbols: _php_check_open_basedir_ex make: *** [libs/libphp4.bundle] Error 1 Any ideas? Thanks! Sam