TRUE/FALSE ifndef
TRUE/FALSE ifndef

avoids conflicting TRUE/FALSE definition for pulling into other projects
WCP52/gpha,WCP52/gpha,WCP52/gpha,RedPitaya/scpi-parser,j123b567/scpi-parser,qingfengxia/scpi-parser,j123b567/scpi-parser,koeart/scpi-parser,koeart/scpi-parser,qingfengxia/scpi-parser,RedPitaya/scpi-parser,WCP52/gpha