phpstub and patch: new environment var EXTERN_EXECUTABLE

because i could not get my wiki to run on mathopd, i explored the inner
workings of phpstub of the standard distribution.  the main difference to
my version is:

        // -ino: 2-02.04.02-14:58
        if (! (php_executable = getenv("EXTERN_EXECUTABLE"))) {
                php_executable = PHP_EXECUTABLE;
        }

that is to say, the actual executable used by the stub can be infered not
at compile time with a #define, but also later at run time by using the
environment variable EXTERN_EXECUTABLE.  if it isn't set, the compile time
default takes precedence.

but even with the unchanged version i get errors:

Tue Apr  2 16:06:44 2002 [10593] convert_cgi_headers: s=1!?
Tue Apr  2 16:06:44 2002 [10593] pipe_loop: problem in convert_cgi_headers

clemens fischer