#2641 Use C++ locale-independent functions when reading csv-files in OMPlot

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@21266 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Author: sjoelund

OMPlot/OMPlotGUI/OMPlotLib.pro

@@ -17,7 +17,7 @@ QMAKE_LFLAGS += -enable-auto-import
 
 SOURCES += ../../SimulationRuntime/c/util/read_matlab4.c \
     ../../SimulationRuntime/c/util/libcsv.c \
-    ../../SimulationRuntime/c/util/read_csv.c \
+    ../../SimulationRuntime/c/util/read_csv.cpp \
     Plot.cpp \
     PlotZoomer.cpp \
     Legend.cpp \