More PANGOLIN_EXPORT annotations in gl.h
More PANGOLIN_EXPORT annotations in gl.h

pinglin/Pangolin,tschmidt23/Pangolin,tschmidt23/Pangolin,arpg/Pangolin,mp3guy/Pangolin,pinglin/Pangolin,visigoth/Pangolin,wxdzju/Pangolin,randi120/Pangolin,renzodenardi/Pangolin,mp3guy/Pangolin,mp3guy/Pangolin,randi120/Pangolin,arpg/Pangolin,stevenlovegrove/Pangolin,stevenlovegrove/Pangolin,wxdzju/Pangolin,visigoth/Pangolin,renzodenardi/Pangolin,stevenlovegrove/Pangolin,tschmidt23/Pangolin