Are there suppose to be cpp files in the source code?

I currently have Apache, MySQL, and PHP 4.0.4pl1 (as CGI) all running just fine on my Windows 98 system. I used Nusphere to install it all, but I really want to learn how just to build it myself from the source code. So I followed the directions in the PHP manual to the _letter_, and when I Rebuild All on php4ts - Win32 Release_TS I get the following message from the compiler: --------------------Configuration: ZendTS - Win32 Release_TS-------------------- Performing Custom Build Step on ".\zend_language_parser.y" Bad command or file name Performing Custom Build Step on .\zend_ini_parser.y Bad command or file name Performing Custom Build Step on ".\zend_language_scanner.l" Bad command or file name Performing Custom Build Step on .\zend_ini_scanner.l Bad command or file name Compiling... zend.c zend_alloc.c zend_API.c zend_builtin_functions.c zend_compile.c C:\cygwin\php-4.0.4pl1\Zend\zend_compile.c(21) : fatal error C1083: Cannot open include file: 'zend_language_parser.h': No such file or directory zend_constants.c zend_dynamic_array.c zend_execute.c zend_execute_API.c zend_extensions.c zend_hash.c zend_highlight.c C:\cygwin\php-4.0.4pl1\Zend\zend_highlight.c(22) : fatal error C1083: Cannot open include file: 'zend_language_parser.h': No such file or directory zend_indent.c C:\cygwin\php-4.0.4pl1\Zend\zend_indent.c(25) : fatal error C1083: Cannot open include file: 'zend_language_parser.h': No such file or directory zend_ini.c zend_ini_parser.c fatal error C1083: Cannot open source file: 'C:\cygwin\php-4.0.4pl1\Zend\zend_ini_parser.c': No such file or directory Generating Code... Compiling... zend_ini_scanner.cpp fatal error C1083: Cannot open source file: 'C:\cygwin\php-4.0.4pl1\Zend\zend_ini_scanner.cpp': No such file or directory Generating Code... Compiling... zend_language_parser.c fatal error C1083: Cannot open source file: 'C:\cygwin\php-4.0.4pl1\Zend\zend_language_parser.c': No such file or directory Generating Code... Compiling... zend_language_scanner.cpp fatal error C1083: Cannot open source file: 'C:\cygwin\php-4.0.4pl1\Zend\zend_language_scanner.cpp': No such file or directory Generating Code... Compiling... zend_list.c zend_llist.c zend_opcode.c zend_operators.c zend_ptr_stack.c zend_sprintf.c zend_stack.c zend_variables.c Generating Code... Error executing cl.exe. php.exe - 7 error(s), 0 warning(s) Two of those files are .cpp files. The problem is, the only .cpp files _anywhere_ in the 4.0.4pl1 source code from php.net are dotnet.cpp, issfunc.cpp, and qtdom_qt.cpp. And the other files aren't in the source code anywhere either. So I'm _COMPLETELY_ stumped as to what to do next. I'm all dressed up with no place to go, apparently. Help? -- Plutarck Should be working on something... ...but forgot what it was.