Benjamin Schieder and Piotr Esden-Tempski:

package/alessandro/php/php.conf

@@ -24,6 +24,8 @@ patchfiles="`ls $confdir/$xpkg/*.patch 2>/dev/null | tr '\n' ' '`" $patchfiles
 
 var_append extraconfopt " " "--with-apxs2=$root/opt/apache/sbin/apxs"
 var_append extraconfopt " " "--with-zlib --with-bz2"
+pkginstalled libjpeg && var_append extraconfopt " " "--with-jpeg-dir"
+pkginstalled libpng && var_append extraconfopt " " "--with-png-dir"
 
 if [ "$ROCKCFG_PKG_PHP_mysql" == 1 ] ; then
 	if [ "$ROCKCFG_PKG_PHP_FORCESHARED" -eq 1 ]; then