Build on Solaris 9

Hello, OS: solaris 9 gcc: 2.95.1 (quite the same with 3.2) php: 4.2.3 /bin/sh /export/home/leguye/php-4.2.3/libtool --silent --mode=compile gcc -I. -I/export/home/leguye/php-4.2.3/ext/mysql/libmysql -I/export/home/leguye/php-4.2.3/main -I/export/home/leguye/php-4.2.3 -I/services/WWW/include -I/export/home/leguye/php-4.2.3/Zend -I/usr/local/include -I/export/home/leguye/php-4.2.3/ext/mysql/libmysql -I/export/home/leguye/php-4.2.3/ext/xml/expat -D_POSIX_PTHREAD_SEMANTICS -DSOLARIS2=290 -DMOD_SSL=208112 -DEAPI -DUSE_EXPAT -I/export/home/leguye/php-4.2.3/TSRM -g -O2 -prefer-pic -c my_getwd.c my_getwd.c:62: #error "No way to get current directory" make[4]: *** [my_getwd.lo] Error 1 make[4]: Leaving directory `/export/home/leguye/php-4.2.3/ext/mysql/libmysql' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/export/home/leguye/php-4.2.3/ext/mysql/libmysql' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/export/home/leguye/php-4.2.3/ext/mysql' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/export/home/leguye/php-4.2.3/ext' make: *** [all-recursive] Error 1 What is the problem? Thank you, Emmanuel Leguy.