[Mesa-dev] [Bug 78101] [bisected] Mesa demos fails to link with drawtex.c:34: undefined reference to `glDrawTexfOES'

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78101

--- Comment #5 from Ian Romanick <idr at freedesktop.org> ---
The demos need to use eglGetProcAddress for extension functions.  The patch is
the right approach, but having a non-static function pointer with the same name
as a function is very dangerous.  You wouldn't declare 'int (*printf)(const
char *, ...);' in your code and expect things to work, would you? :)

This is why GLEW names the function pointers __glewFoo and has a #define glFoo
that calls it.

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