Re: Err : Invalid library

On Tue, Mar 13, 2001 at 05:24:58PM +0000, Barry Mitchelson wrote: > hi, > > i've been playing around with the php-gtk extension (don't worry this is not OT), but > am having problems after installing the latest cvs version of php4. > > when I try and run a script (and even when i do 'php -v') i get the following error : > > PHP Warning: Invalid library (maybe not a PHP library) 'php_gtk.so' in Unknown on > line 0 > > now, I know that this library works because I had it running with my previous cvs version of > php. I've tried reinstalling php-gtk, and also php4 from both cvs and snaps.php.net but still > the same problem. > > has anyone got any ideas what could be causing this problem ? Yes and I have partial solution. Not pretty though but it works for me at least. So, problem caused by several things: 1. Build environment for self contained extensions (SCE) is generally broken in PHP4. It wasn't work in past, it does not work now in one particular case: when you have several PHP_ARG_WITH or PHP_ARG_ENABLE in config.m4. In case of SCE, all of these macroses get positive answer regardless of user input or library checks because of this code in PHP_ARG_ANALYZE (acinclude.m4): if test "$php_always_shared" = "yes"; then ext_output="yes, shared" ext_shared=yes test "[$]$1" = "no" && $1=yes fi So, even if user states PHP_SOMETHING = no, this code will rewrite it to PHP_SOMETHING = yes This particulary touches 'readline', 'mysql', 'dba', 'interbase', 'mcrypt', 'mhash' and other extensions. 2. PHP-GTK suffers from other bug. It is also a problem with build environment: when you do #include "php_config.h" in SCE module, then main PHP4 php_config.h which is installed on the system is included, not locally created php_config.h which contains proper definitions of HAVE_PHP_GTK and COMPILE_DL_PHP_GTK symbols. In the CVS version of PHP4 header file which is generated as SCE config file is renamed to config.h from php_config.h few days ago. But modules themselves were not updated, so there are no modules in PHP4 than really include config.h from the current directory, so HAVE_MODULENAME will be undefined for all of them (if they are compiled as SCE) and all code will be skipped due #if HAVE_MODULENAME <actual code> #endif in most of them. This particulary touches PHP-GTK, mysql, dba, and most of other modules. Solution for PHP-GTK is to pass -DHAVE_PHP_GTK=1 -DCOMPILE_DL_PHP_GTK=1 to configure through CFLAGS. Or fix SCE build environment (macros in acinclude.m4, pear/pear.m4 and #include "php_config.h" in all modules). -- Sincerely yours, Alexander Bokovoy The Midgard Project | www.midgard-project.org | Aurora R&D team Minsk Linux Users Group | www.minsk-lug.net | www.aurora-linux.com ALT Linux Team | www.alt-linux.org | Architecte Open Source -- Conscience is what hurts when everything else feels so good.