PHP 4.1.2 - apache 1.3.20 - irix 6.5, build problem

When i try to build php with mySql and apxs configuration goes ok but on make install I get this: 118# make Making all in Zend /bin/sh ../libtool --silent --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I../main -D_XPG_IV -DIRIX -DMOD_SSL=208104 -D USE_HSREGEX -DEAPI -DUSE_EXPAT -I../TSRM -g -O2 -prefer-pic -c zend_operators.c zend_operators.c: In function `multi_convert_to_long_ex': zend_operators.c:566: parse error before "zval" zend_operators.c:566: parse error before "zval" zend_operators.c:566: parse error before "zval" zend_operators.c:566: parse error before "zval" zend_operators.c:566: parse error before "zval" zend_operators.c:566: parse error before ')' token zend_operators.c: In function `multi_convert_to_double_ex': zend_operators.c:581: parse error before "zval" zend_operators.c:581: parse error before "zval" zend_operators.c:581: parse error before "zval" zend_operators.c:581: parse error before "zval" zend_operators.c:581: parse error before "zval" zend_operators.c:581: parse error before ')' token zend_operators.c: In function `multi_convert_to_string_ex': zend_operators.c:596: parse error before "zval" zend_operators.c:596: parse error before "zval" zend_operators.c:596: parse error before "zval" zend_operators.c:596: parse error before "zval" zend_operators.c:596: parse error before "zval" zend_operators.c:596: parse error before ')' token *** Error code 1 (bu21) *** Error code 1 (bu21) What goes wrong, can anyone help TIA