make php问题，狂占系统资源

安装php，configure没有问题，在make时，/bin/sh /backup/installed/php-5.2.11/libtool --silent --preserve-dup-deps --mode=compile gcc -Iext/date/lib -Iext/date/ -I/backup/installed/php-5.2.11/ext/date/ -DPHP_ATOM_INC -I/backup/installed/php-5.2.11/include -I/backup/installed/php-5.2.11/main -I/backup/installed/php-5.2.11 -I/backup/installed/php-5.2.11/ext/date/lib -I/usr/include/libxml2 -I/opt/openssl/include -I/opt/freetype/include -I/opt/freetype/include/freetype2 -I/usr/local/include -I/opt/mysql/include/mysql -I/backup/installed/php-5.2.11/TSRM -I/backup/installed/php-5.2.11/Zend    -I/usr/include -g -O2  -prefer-non-pic -c /backup/installed/php-5.2.11/ext/date/php_date.c -o ext/date/php_date.lo 
/backup/installed/php-5.2.11/ext/date/php_date.c: In function 'date_format':
/backup/installed/php-5.2.11/ext/date/php_date.c:805: warning: incompatible implicit declaration of built-in function 'llabs'
/bin/sh /backup/installed/php-5.2.11/libtool --silent --preserve-dup-deps --mode=compile gcc -Iext/date/lib -Iext/date/ -I/backup/installed/php-5.2.11/ext/date/ -DPHP_ATOM_INC -I/backup/installed/php-5.2.11/include -I/backup/installed/php-5.2.11/main -I/backup/installed/php-5.2.11 -I/backup/installed/php-5.2.11/ext/date/lib -I/usr/include/libxml2 -I/opt/openssl/include -I/opt/freetype/include -I/opt/freetype/include/freetype2 -I/usr/local/include -I/opt/mysql/include/mysql -I/backup/installed/php-5.2.11/TSRM -I/backup/installed/php-5.2.11/Zend    -I/usr/include -g -O2  -prefer-non-pic -c /backup/installed/php-5.2.11/ext/date/lib/astro.c -o ext/date/lib/astro.lo 
/bin/sh /backup/installed/php-5.2.11/libtool --silent --preserve-dup-deps --mode=compile gcc -Iext/date/lib -Iext/date/ -I/backup/installed/php-5.2.11/ext/date/ -DPHP_ATOM_INC -I/backup/installed/php-5.2.11/include -I/backup/installed/php-5.2.11/main -I/backup/installed/php-5.2.11 -I/backup/installed/php-5.2.11/ext/date/lib -I/usr/include/libxml2 -I/opt/openssl/include -I/opt/freetype/include -I/opt/freetype/include/freetype2 -I/usr/local/include -I/opt/mysql/include/mysql -I/backup/installed/php-5.2.11/TSRM -I/backup/installed/php-5.2.11/Zend    -I/usr/include -g -O2  -prefer-non-pic -c /backup/installed/php-5.2.11/ext/date/lib/dow.c -o ext/date/lib/dow.lo 
/bin/sh /backup/installed/php-5.2.11/libtool --silent --preserve-dup-deps --mode=compile gcc -Iext/date/lib -Iext/date/ -I/backup/installed/php-5.2.11/ext/date/ -DPHP_ATOM_INC -I/backup/installed/php-5.2.11/include -I/backup/installed/php-5.2.11/main -I/backup/installed/php-5.2.11 -I/backup/installed/php-5.2.11/ext/date/lib -I/usr/include/libxml2 -I/opt/openssl/include -I/opt/freetype/include -I/opt/freetype/include/freetype2 -I/usr/local/include -I/opt/mysql/include/mysql -I/backup/installed/php-5.2.11/TSRM -I/backup/installed/php-5.2.11/Zend    -I/usr/include -g -O2  -prefer-non-pic -c /backup/installed/php-5.2.11/ext/date/lib/parse_date.c -o ext/date/lib/parse_date.lo 执行到这个地方时，查看进程CC1狂占CPU，把系统都搞垮了。不知道什么原因，求教高手！
我这是第二次重新编译php，第一次安装php时，没有出现这种问题！