PHP 4.0 Bug #9512: Apache fails linking due to incorrect PHP lib ordering

From: sitz@onastick.net Operating system: Solaris 2.6 PHP version: 4.0.4pl1 PHP Bug Type: Compile Failure Bug description: Apache fails linking due to incorrect PHP lib ordering PHP is configured thusly: ./configure \ --enable-versioning \ --with-apache=../apache_1.3.19 \ --with-config-file-path=/etc \ --with-ftp \ --with-gd=/shared \ --with-tiff-dir=/shared/lib \ --with-jpeg-dir \ --with-mysql=/local \ --with-xml \ --with-zlib=/shared \ --with-pdflib=/shared/lib \ --enable-safe-mode \ --enable-track-vars \ --enable-force-cgi-redirect \ --enable-memory-limit \ --enable-sysvsem \ --enable-sysvshm \ --with-gdbm=/shared \ --with-db2=/shared \ --with-cdb=/shared PHP compiles and installs successfully. Apache is configured thusly: ./configure \ --prefix=/shared/apache \ --exec-prefix=/shared/apache \ --bindir=/shared/apache/bin \ --sbindir=/shared/apache/sbin \ --mandir=/shared/apache/man \ --sysconfdir=/shared/apache/conf \ --logfiledir=/shared/apache/logs \ --runtimedir=/shared/apache/logs \ --libexecdir=/shared/apache/libexec \ --localstatedir=/shared/apache/logs \ --activate-module=src/modules/perl/libperl.a \ --activate-module=src/modules/php4/libphp4.a \ --enable-module=access \ --disable-module=actions \ --enable-module=alias \ --enable-module=asis \ --enable-module=auth \ --enable-module=auth_anon \ --enable-module=auth_db \ --enable-module=auth_dbm \ --enable-module=autoindex \ --enable-module=cern_meta \ --enable-module=cgi \ --enable-module=dir \ --enable-module=env \ --enable-module=expires \ --enable-module=headers \ --disable-module=imap \ --enable-module=include \ --disable-module=info \ --enable-module=log_config \ --enable-module=mime \ --disable-module=mime_magic \ --disable-module=mmap_static \ --enable-module=negotiation \ --enable-module=rewrite \ --enable-module=setenvif \ --disable-module=so \ --enable-module=speling \ --enable-module=status \ --disable-module=userdir \ --enable-module=unique_id \ --enable-module=usertrack \ --enable-suexec \ --suexec-caller=apache \ --suexec-docroot=/htdocs \ --suexec-logfile=/logs/suexec_log \ --suexec-safepath=/bin:/usr/bin:/usr/local/bin \ --suexec-uidmin=1000 \ --suexec-gidmin=1000 When compiing apache, the following error appears: Undefined first referenced symbol in file png_set_strip_16 /shared/lib/libgd.a(gd_png.o) png_set_read_fn /shared/lib/libgd.a(gd_png.o) png_create_write_struct /shared/lib/libgd.a(gd_png.o) png_create_read_struct /shared/lib/libgd.a(gd_png.o) png_set_tRNS /shared/lib/libgd.a(gd_png.o) png_write_end /shared/lib/libgd.a(gd_png.o) png_get_PLTE /shared/lib/libgd.a(gd_png.o) png_read_end /shared/lib/libgd.a(gd_png.o) png_set_packing /shared/lib/libgd.a(gd_png.o) png_read_info /shared/lib/libgd.a(gd_png.o) png_write_image /shared/lib/libgd.a(gd_png.o) png_destroy_write_struct /shared/lib/libgd.a(gd_png.o) png_check_sig /shared/lib/libgd.a(gd_png.o) png_set_dither /shared/lib/libgd.a(gd_png.o) png_get_IHDR /shared/lib/libgd.a(gd_png.o) png_get_rowbytes /shared/lib/libgd.a(gd_png.o) png_set_strip_alpha /shared/lib/libgd.a(gd_png.o) png_read_update_info /shared/lib/libgd.a(gd_png.o) png_create_info_struct /shared/lib/libgd.a(gd_png.o) png_set_IHDR /shared/lib/libgd.a(gd_png.o) png_write_info /shared/lib/libgd.a(gd_png.o) png_set_write_fn /shared/lib/libgd.a(gd_png.o) png_get_io_ptr /shared/lib/libgd.a(gd_png.o) png_read_image /shared/lib/libgd.a(gd_png.o) png_destroy_read_struct /shared/lib/libgd.a(gd_png.o) png_get_error_ptr /shared/lib/libgd.a(gd_png.o) png_set_sig_bytes /shared/lib/libgd.a(gd_png.o) png_get_valid /shared/lib/libgd.a(gd_png.o) png_get_tRNS /shared/lib/libgd.a(gd_png.o) png_set_PLTE /shared/lib/libgd.a(gd_png.o) ld: fatal: Symbol referencing errors. No output written to httpd The problem lies in the order of the libs passed to the linker. This is a partial snippet of what is passed: -lmodphp4 -lpam -ldl -lz -lmysqlclient -lpng -lz -lgd -ljpeg The solaris linker (/usr/ccs/bin/ld) needs -lpng to be to the right of -lgd in order to complete the linking. If I change the above to: -lmodphp4 -lpam -ldl -lz -lmysqlclient -lgz -lpng -lz -ljpeg Linking succeeds with no issues. -- Edit Bug report at: http://bugs.php.net/?id=9512&edit=1