glsl2: do not use __retval name; two underscores is reserved word according to GLSL...
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-rw-r--r-- 213 .gitignore
-rw-r--r-- 14005 Makefile
-rw-r--r-- 6008 SConstruct
-rw-r--r-- 4186 acinclude.m4
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drwxr-xr-x - bin
-rw-r--r-- 2695 common.py
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drwxr-xr-x - docs
drwxr-xr-x - doxygen
drwxr-xr-x - include
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drwxr-xr-x - windows