Improvements for MSVC build. (#10521)

  - Use our 3rdParty/regex library (omcregex) if we are using MSVC.

  - Disable ModelicaExternalC and ParModelica libraries if we are using MSVC.

  - Build `libOpenModelicaRuntimeC` as a static library if MSVC. It has some
    dll exporting conflicts with `libOpenModelicaCompiler`.

  - Export all symbols from `OMPlotLib.dll`

OMCompiler/SimulationRuntime/CMakeLists.txt

@@ -7,10 +7,22 @@ if(OM_OMC_ENABLE_CPP_RUNTIME)
 endif()
 
 # ModelicaExternalC
-omc_add_subdirectory(ModelicaExternalC)
+# Disable ModelicaExternalC for MSVC since right now we are building static
+# and shared versions of the library with the *same name*. This works on linux
+# and MinGW because lib.a and lib.so. MSVC, however, wants to build an import
+# lib (.lib) for DLLs. This conflicts with the static library (also .lib).
+if(NOT MSVC)
+  omc_add_subdirectory(ModelicaExternalC)
+endif()
 
 # omc_add_subdirectory(opc)
-omc_add_subdirectory(ParModelica)
+
+# ParModelica
+# Disable for MSVC. There are some issues with Boost which need to be fixed.
+if(NOT MSVC)
+  omc_add_subdirectory(ParModelica)
+endif()
+
 #ADD_SUBDIRECTORY(cpp)
 #ADD_SUBDIRECTORY(interactive)
 

OMCompiler/SimulationRuntime/c/cmake_3.14.cmake

@@ -31,7 +31,14 @@ file(GLOB_RECURSE OMC_SIMRT_OPTIMIZATION_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/opt
 
 # ######################################################################################################################
 # Library: OpenModelicaRuntimeC
-add_library(OpenModelicaRuntimeC SHARED)
+# For the moment, we build OpenModelicaRuntimeC as a static library with MSVC.
+# It has some dll exporting issues in it that need to be resolved.
+if(MSVC)
+  add_library(OpenModelicaRuntimeC STATIC)
+else()
+  add_library(OpenModelicaRuntimeC SHARED)
+endif()
+
 add_library(omc::simrt::runtime ALIAS OpenModelicaRuntimeC)
 
 target_sources(OpenModelicaRuntimeC PRIVATE ${OMC_SIMRT_GC_SOURCES} ${OMC_SIMRT_UTIL_SOURCES} ${OMC_SIMRT_META_SOURCES})
@@ -51,6 +58,7 @@ if(MINGW)
   target_link_libraries(OpenModelicaRuntimeC PUBLIC regex)
   target_link_options(OpenModelicaRuntimeC PRIVATE  -Wl,--export-all-symbols)
 elseif(MSVC)
+  target_link_libraries(OpenModelicaRuntimeC PUBLIC omc::3rd::regex)
   set_target_properties(OpenModelicaRuntimeC PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS true)
 endif()
 

OMPlot/OMPlot/OMPlotGUI/CMakeLists.txt

@@ -32,6 +32,10 @@ set(OMPLOTLIB_HEADERS OMPlot.h
 add_library(OMPlotLib SHARED ${OMPLOTLIB_SOURCES} ${OMPLOTLIB_HEADERS})
 target_compile_definitions(OMPlotLib PRIVATE OMPLOTLIB_MOC_INCLUDE)
 
+if(MSVC)
+  set_target_properties(OMPlotLib PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS true)
+endif()
+
 target_include_directories(OMPlotLib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
 target_link_libraries(OMPlotLib PUBLIC Qt5::Widgets)