Minor fixes allowing a GCC tests build.

Author: highperformancecoder

Makefile

@@ -33,9 +33,11 @@ MAKEOVERRIDES+=DEBUG=$(DEBUG)
 # some Linux distros
 ifeq ($(HAVE_CLANG),1)
 ifndef MXE
+ifndef GCC
 MAKEOVERRIDES+=CPLUSPLUS="clang++ -std=c++20"
 endif
 endif
+endif
 
 ifneq ($(MAKECMDGOALS),clean)
 # make sure EcoLab is built first, even before starting to include Makefiles

test/testPlotWidget.cc

@@ -20,6 +20,7 @@
 #include "lasso.h"
 #include "plotWidget.h"
 #include "plot.xcd"
+#include "CSVTools.xcd"
 #include "tensorInterface.xcd"
 #include "tensorVal.xcd"
 #include "minsky_epilogue.h"