PHP compile errors on RH9 and using MySQL 3.23.55

ext/mysql/libmysql/my_lib.o(.text+0x3d1): In function `my_dir': /tmp/php-4.3.0/ext/mysql/libmysql/my_lib.c:169: undefined reference to `errno' ext/mysql/libmysql/my_lib.o(.text+0x5ef): In function `my_stat': /tmp/php-4.3.0/ext/mysql/libmysql/my_lib.c:588: undefined reference to `errno' ext/mysql/libmysql/my_malloc.o(.text+0xde): In function `my_malloc': /tmp/php-4.3.0/ext/mysql/libmysql/my_malloc.c:24: undefined reference to `errno' ext/mysql/libmysql/my_realloc.o(.text+0xd5): In function `my_realloc': /tmp/php-4.3.0/ext/mysql/libmysql/my_realloc.c:44: undefined reference to `errno' ext/mysql/libmysql/my_delete.o(.text+0x86): In function `my_delete': /tmp/php-4.3.0/ext/mysql/libmysql/my_delete.c:16: undefined reference to `errno' ext/mysql/libmysql/my_tempnam.o(.text+0x89):/tmp/php-4.3.0/ext/mysql/libmysq l/my_tempnam.c:108: more undefined references to `errno' follow collect2: ld returned 1 exit status make: *** [sapi/cgi/php] Error 1 PHP compile configure string: ./configure -with-mysql -with-apxs=/usr/local/apache/bin/apxs -with-pdflib=/ usr/local -with-curl=/usr -with-ldap=/usr -enable-ftp -with-zlib-dir=/usr If anyone can offer some help that would help me. Andre