fixed incorrect checking of the existence of GLX_EXT_swap_control and friends
[demo_prior] / libs / treestore /
drwxr-xr-x   ..
-rw-r--r-- 1084 LICENSE
-rw-r--r-- 179 Makefile
-rw-r--r-- 922 README.md
drwxr-xr-x - src