PHP 4.0 Bug #6070: zlib support requires png libraries.

From: grtecz@opus.co.nz Operating system: Solaris 2.6 PHP version: 4.0.1pl2 PHP Bug Type: Compile Failure Bug description: zlib support requires png libraries. At the end of configure I get the error message: checking whether to include zlib support... yes checking for gzgets in -lz... no configure: error: Zlib module requires zlib >= 1.0.9. zlib is not the problem. As config.log shows configure:38170: gcc -o conftest -g -O2 -D_POSIX_PTHREAD_SEMANTICS -DXML_BYTE_ORDER=21 -L/opt/gnu/lib -R/usr/ucblib -L/usr/ucblib -R/opt/gnu/lib -L/opt/gnu/lib -R/usr/local/lib -L/usr/local/lib -R/opt/serv/lib -L/opt/serv/lib -R/opt/mysql/lib/mysql -L/opt/mysql/lib/mysql conftest.c -lz -lpq -lmysqlclient -lttf -lgd -ldb -lgdbm -lresolv -lresolv -lm -ldl -lcrypt -lnsl -lsocket -lsocket 1>&5 Undefined first referenced symbol in file png_set_strip_16 /opt/serv/lib/libgd.so png_set_read_fn /opt/serv/lib/libgd.so ... I use ./configure --with-apxs=/opt/serv/sbin/apxs --enable-versioning --with-mysql=/opt/mysql --prefix=/opt/php --with-exec-dir=/opt/serv/libexec/ --with-db2 --with-gd --with-ttf=/opt/serv --with-ldap=/opt/serv --with-zlib=/opt/gnu --with-pgsql=/opt/serv --enable-sysvsem --enable-sysvshm --with-yp --enable-ftp --with-config-file-path=/opt/php/etc --with-gdbm=/opt/gnu Fixed by changing the configure script: LIBS="-lgd $LIBS" into LIBS="-lgd -lpng $LIBS" Originally I didn`t log this as I thought it was similar to bug #4423 - according to the reports this was fixed in 4.0.1.