Fixes for #9145. (#9150)

  - Explicitly add OpenSceneGraph incldue directories for OMEditLib.
    OpenSceneGraph might not always be installed in to system include directories.
    Make sure OMEditLIB can find it always.

  - Add `include(CheckCCompilerFlag)` to the our cmake utilities file. This
    is a frequently used functionality and it is fair to have it included
    by default.

  - Use CMAKE_SHARED_LIBRARY_PREFIX and CMAKE_SHARED_LIBRARY_SUFFIX to compute
    the name of the OMSimulator library. It can be different in different
    Unix systems, e.g., on MacOS we should expect `libOMSimulator.dynlib`

  - Add CMAKE_VERSION to the configuration report just for ease of debugging.

CMakeLists.txt

@@ -28,6 +28,7 @@ include(cmake/omc_check_exists.cmake)
 # well as linux. See the file for more info.
 include(cmake/OMCPThreads.cmake)
 
+omc_add_to_report(CMAKE_VERSION)
 # Add the compiler ids to the report for convenience.
 omc_add_to_report(CMAKE_C_COMPILER_ID)
 omc_add_to_report(CMAKE_CXX_COMPILER_ID)

OMEdit/OMEditLIB/CMakeLists.txt

@@ -268,6 +268,8 @@ set_source_files_properties(${OMCompiler_SOURCE_DIR}/Compiler/Script/OpenModelic
 add_library(OMEditLib STATIC ${OMEDITLIB_SOURCES} ${OMEDITLIB_HEADERS})
 
 target_include_directories(OMEditLib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+# OpenSceneGraph does not provide imported targets yet. Add includes manually.
+target_include_directories(OMEditLib PUBLIC ${OPENSCENEGRAPH_INCLUDE_DIRS})
 
 # qmake adds -DUNICODE by defult (As far as I can gather).
 # So add it for CMake as well to avoid having to modify the code.

cmake/omc_utils.cmake

@@ -1,5 +1,6 @@
 include(FeatureSummary)
 include(CMakePrintHelpers)
+include(CheckCCompilerFlag)
 
 macro(omc_add_to_report var)
   cmake_print_variables(${var})

omsimulator.cmake

@@ -71,8 +71,10 @@ else()
     set(OMSIMULATORLIB_LOCATION ${CMAKE_CURRENT_BINARY_DIR}/OMSimulator/lib/)
   endif()
 
+  set(LIB_OMSIMULATOR_NAME ${CMAKE_SHARED_LIBRARY_PREFIX}OMSimulator${CMAKE_SHARED_LIBRARY_SUFFIX})
+
   set_target_properties(libOMSimulator PROPERTIES
-    IMPORTED_LOCATION ${OMSIMULATORLIB_LOCATION}/libOMSimulator.so
+    IMPORTED_LOCATION ${OMSIMULATORLIB_LOCATION}/${LIB_OMSIMULATOR_NAME}
   )