Fix generated C++ FMU filenames

Previously, the API reported dots were used, but underscores were
actually being used. The problem is that the FMI templates changed
the meaning of the fileNamePrefix (from the OM API user's perspective).

Compiler/Script/CevalScriptBackend.mo

@@ -3285,6 +3285,8 @@ algorithm
     Error.addMessage(Error.FMU_EXPORT_NOT_SUPPORTED_CPP, {FMUType});
     FMUType := "me";
   end if;
+  // NOTE: The FMUs use fileNamePrefix for the internal name when it would be expected to be fileNamePrefix that decides the .fmu filename
+  //       The scripting environment from a user's perspective is like that. fmuTargetName is the name of the .fmu in the templates, etc.
   filenameprefix := Util.stringReplaceChar(if inFileNamePrefix == "<default>" then Absyn.pathString(className) else inFileNamePrefix, ".", "_");
   fmuTargetName := if FMUVersion == "1.0" then filenameprefix else (if inFileNamePrefix == "<default>" then Absyn.pathString(className) else inFileNamePrefix);
   defaulSimOpt := buildSimulationOptionsFromModelExperimentAnnotation(st, className, filenameprefix, SOME(defaultSimulationOptions));

Compiler/Template/CodegenFMUCpp.tpl

@@ -648,8 +648,6 @@ case SIMCODE(modelInfo=MODELINFO(__), makefileParams=MAKEFILE_PARAMS(__), simula
   let ParModelicaLibs = if acceptParModelicaGrammar() then '-lOMOCLRuntime -lOpenCL' // else ""
   let extraCflags = match sopt case SOME(s as SIMULATION_SETTINGS(__)) then
     match s.method case "dassljac" then "-D_OMC_JACOBIAN "
-  // Note: FMI 1.0 did not distinguish modelIdentifier from fileNamePrefix
-  let modelName = if isFMIVersion10(FMUVersion) then fileNamePrefix else dotPath(modelInfo.name)
   <<
   # Makefile generated by OpenModelica
   # run with nmake from Visual Studio Command Prompt
@@ -681,16 +679,15 @@ case SIMCODE(modelInfo=MODELINFO(__), makefileParams=MAKEFILE_PARAMS(__), simula
   LDFLAGS=/link /DLL /NOENTRY /LIBPATH:"<%makefileParams.omhome%>/lib/omc/cpp/msvc" /LIBPATH:"<%makefileParams.omhome%>/bin" OMCppSystem_static.lib OMCppMath_static.lib OMCppExtensionUtilities_static.lib OMCppFMU_static.lib $(OMCPP_SOLVER_LIBS) ModelicaExternalC.lib ModelicaStandardTables.lib OMCppModelicaUtilities_static.lib $(EXTRA_LIBS)
   PLATFORM="<%makefileParams.platform%>"
 
-  MODEL_NAME=<%modelName%>
   MODELICA_SYSTEM_LIB=<%fileNamePrefix%>
   CALCHELPERMAINFILE=OMCpp$(MODELICA_SYSTEM_LIB)CalcHelperMain.cpp
 
-  $(MODELICA_SYSTEM_LIB).fmu: $(MODELICA_SYSTEM_LIB)$(DLLEXT)
+  <%fmuTargetName%>.fmu: $(MODELICA_SYSTEM_LIB)$(DLLEXT)
   <%\t%>rm -rf binaries
   <%\t%>mkdir -p "binaries/$(PLATFORM)"
   <%\t%>mv $(MODELICA_SYSTEM_LIB)$(DLLEXT) "binaries/$(PLATFORM)/"
   <%\t%>rm -f $(MODELICA_SYSTEM_LIB).fmu
-  <%\t%>zip -r "$(MODELICA_SYSTEM_LIB).fmu" modelDescription.xml binaries
+  <%\t%>zip -r "<%fmuTargetName%>.fmu" modelDescription.xml binaries
   <%\t%>rm -rf binaries
 
   $(MODELICA_SYSTEM_LIB)$(DLLEXT):
@@ -704,7 +701,6 @@ case SIMCODE(modelInfo=MODELINFO(__), makefileParams=MAKEFILE_PARAMS(__), simula
   let libsExtra = (makefileParams.libs |> lib => lib ;separator=" ")
   let extraCflags = match sopt case SOME(s as SIMULATION_SETTINGS(__)) then ""
   // Note: FMI 1.0 did not distinguish modelIdentifier from fileNamePrefix
-  let modelName = if isFMIVersion10(FMUVersion) then fileNamePrefix else dotPath(modelInfo.name)
   let platformstr = match makefileParams.platform case "i386-pc-linux" then 'linux32' case "x86_64-linux" then 'linux64' else '<%makefileParams.platform%>'
   let omhome = makefileParams.omhome
   let platformbins = match platformstr case "win32" case "win64" then '<%omhome%>/bin/libgcc_s_*.dll <%omhome%>/bin/libstdc++-6.dll <%omhome%>/bin/libwinpthread-1.dll' else ''
@@ -800,9 +796,9 @@ case SIMCODE(modelInfo=MODELINFO(__), makefileParams=MAKEFILE_PARAMS(__), simula
   CPPFILES=$(CALCHELPERMAINFILE)
   OFILES=$(CPPFILES:.cpp=.o)
 
-  .PHONY: <%modelName%>.fmu $(CPPFILES) clean
+  .PHONY: <%fmuTargetName%>.fmu $(CPPFILES) clean
 
-  <%fileNamePrefix%>.fmu: $(OFILES)
+  <%fmuTargetName%>.fmu: $(OFILES)
   <%\t%>$(CXX) -shared -o <%fileNamePrefix%>$(DLLEXT) $(OFILES) $(LDFLAGS) $(LIBS)
   <%\t%><%mkdir%> -p "binaries/$(PLATFORM)"
   <%\t%>cp $(BINARIES) "binaries/$(PLATFORM)/"
@@ -812,12 +808,12 @@ case SIMCODE(modelInfo=MODELINFO(__), makefileParams=MAKEFILE_PARAMS(__), simula
   <%\t%>cp $(SUNDIALS_LIBRARIES_KINSOL) "binaries/$(PLATFORM)/"
   <%\t%>cp $(OMHOME)/share/omc/runtime/cpp/licenses/sundials.license "documentation/"
   endif
-  <%\t%>rm -f <%fileNamePrefix%>.fmu
+  <%\t%>rm -f <%fmuTargetName%>.fmu
   ifeq ($(USE_FMU_SUNDIALS),ON)
-  <%\t%>zip -r "<%fileNamePrefix%>.fmu" modelDescription.xml binaries documentation
+  <%\t%>zip -r "<%fmuTargetName%>.fmu" modelDescription.xml binaries documentation
   <%\t%>rm -rf documentation
   else
-  <%\t%>zip -r "<%fileNamePrefix%>.fmu" modelDescription.xml binaries
+  <%\t%>zip -r "<%fmuTargetName%>.fmu" modelDescription.xml binaries
   endif
 
   clean: