JH Config : Check for existence of GCC 4.8 before using it
JH Config : Check for existence of GCC 4.8 before using it

ImageEngine/gaffer,johnhaddon/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,ivanimanishi/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,lucienfostier/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,hradec/gaffer,boberfly/gaffer,ImageEngine/gaffer,hradec/gaffer,GafferHQ/gaffer,boberfly/gaffer,hradec/gaffer,GafferHQ/gaffer,ivanimanishi/gaffer,andrewkaufman/gaffer,boberfly/gaffer,hradec/gaffer,boberfly/gaffer,ivanimanishi/gaffer,appleseedhq/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,appleseedhq/gaffer,hradec/gaffer