In the GLX workaround, use !strcmp to check for equality with "GLX", not strcmp.
In the GLX workaround, use !strcmp to check for equality with "GLX", not strcmp.

stapelberg/libxcb,topcat/xcb-win32,OpenInkpot-archive/iplinux-libxcb,topcat/xcb-win32,OpenInkpot-archive/iplinux-libxcb,topcat/xcb-win32,stapelberg/libxcb,topcat/xcb-win32,stapelberg/libxcb,OpenInkpot-archive/iplinux-libxcb,topcat/xcb-win32