I have compiled Apache httpd with support for PHP and MySQL.
After I have compiled PHP, trying to configure Apache I received the following error:

> bash-2.02# ./configure --prefix=/www
> --activate-module=src/modules/php3/libphp3.a
> Configuring for Apache, Version 1.3.6
>  + using installation path layout: Apache
(config.layout)
>  + activated php3 module (modules/php3/libphp3.a)
>  + Warning: no Perl interpreter available for support
scripts.
>  + Perhaps you have to select one with --with-perl=FILE.
> Creating Makefile
> Creating Configuration.apaci in src
> Creating Makefile in src
>  + configured for Solaris 260 platform
>  + setting C compiler to gcc
>  + setting C pre-processor to gcc -E
>  + checking for system header files
>  + adding selected modules
>     o php3_module uses ConfigStart/End
> ld: fatal: library -lmysqlclient: not found
> ld: fatal: File processing errors. No output written to 
> helpers/dummy
> make: *** [dummy] Error 1
>  + doing sanity check on compiler and options
> ** A test compilation with your Makefile configuration
> ** failed. This is most likely because your C compiler
> ** is not ANSI. Apache requires an ANSI C Compiler, such
> ** as gcc. The above error message from your compiler
> ** will also provide a clue.
>  Aborting!

I have tried several versions of PHP3, MySQL and Apache (sources) and I get the same error. My gcc compiler is a ANSI one (I compiled some daemons with it, including POP3, IMAP and Sendmail) and I installed al C/C++ libraries.