Problem with installation PHP with Solaris8

Hello We have a problem with the installation of PHP 4.0.6 with Sun Solaris 8. When we execute the command : /configure we haven't problems but when we have to execute the make command the output is the following : ld.so.1: make: fatal: librt.so.1: version `SUNW_1.2' not found (required by file make) Killed Or this one using the make of /usr/css/bin/make # /usr/ccs/bin/make Making all in Zend /bin/sh ../libtool --silent --mode=compile c++ -DHAVE_CONFIG_H -I. -I. -I../main -D_POSIX_PTHREAD_SEMANTICS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -DSUPPORT_UTF8 -DXML_BYTE_ORDER=21 -I../TSRM -DTHREAD=1 -pthreads -c zend_language_scanner_cc.cc In file included from zend_language_scanner_cc.cc:2712: zend_istdiostream.h:8: syntax error before `;' zend_istdiostream.h:11: syntax error before `*' zend_istdiostream.h: In method `istdiostream::istdiostream(FILE *)': zend_istdiostream.h:10: class istdiostream' does not have any field named _file' zend_istdiostream.h:10: `_file' undeclared (first use this function) zend_istdiostream.h:10: (Each undeclared identifier is reported only once zend_istdiostream.h:10: for each function it appears in.) zend_istdiostream.h: At top level: zend_istdiostream.h:12: parse error at null character zend_language_scanner_cc.cc: In function `void zend_file_handle_dtor(zend_file_handle *)': zend_language_scanner_cc.cc:2823: no matching function for call to `streambuf::stdiofile ()' *** Error code 1 make: Fatal error: Command failed for target `zend_language_scanner_cc.lo' Current working directory /internet/programas/php-4.0.6/Zend *** Error code 1 make: Fatal error: Command failed for target `all-recursive' Can you help us?? Many thanks. Pedro A. Rodriguez