Here, you can download the source code of mupen64 0.4 and all the plugins included in its binary package. Many plugins source code have been integrated directly into mupen64's source code. It should be easier for users who want to compile everything.
The core source code:
http://mupen64.emulation64.com/files/0.5/mupen64_src-0.5.tar.bz2
Gfx plugins:
rice's video plugin 6.1.0 (binary only until rice wants to release source code):
http://mupen64.emulation64.com/files/0.5/RiceVideoBinaries-6.1.0.tar.bz2
Glide64 0.7 SP8:
http://mupen64.emulation64.com/files/0.5/glide64-0.7.SP8.tar.bz2
TR64 0.7.8 (with GTK2 support):
http://mupen64.emulation64.com/files/0.5/tr64_ogl_gtk2-0.7.8.tar.bz2
The core source code:
http://mupen64.emulation64.com/files/0.5/mupen64_src-0.5.tar.bz2
Gfx plugins:
rice's video plugin 6.1.0 (binary only until rice wants to release source code):
http://mupen64.emulation64.com/files/0.5/RiceVideoBinaries-6.1.0.tar.bz2
Glide64 0.7 SP8:
http://mupen64.emulation64.com/files/0.5/glide64-0.7.SP8.tar.bz2
TR64 0.7.8 (with GTK2 support):
http://mupen64.emulation64.com/files/0.5/tr64_ogl_gtk2-0.7.8.tar.bz2