Fix 3rdParty/FMIL installation behavior.

  - Respect the users choice in installation prefix. Do not overwrite.
    Fixed other related issues.

  - This is constantly creating problems in other places.

Makefile

@@ -212,7 +212,7 @@ config-fmil: 3rdParty/FMIL/$(INSTALL_DIR)/lib/libfmilib.a
 	@echo
 	$(MKDIR) 3rdParty/FMIL/$(BUILD_DIR)
 	$(MKDIR) 3rdParty/FMIL/$(INSTALL_DIR)
-	cd 3rdParty/FMIL/$(BUILD_DIR) && $(CMAKE) $(CMAKE_TARGET) ../.. -DFMILIB_INSTALL_PREFIX=../../$(INSTALL_DIR) -DFMILIB_BUILD_TESTS:BOOL=0 -DFMILIB_GENERATE_DOXYGEN_DOC:BOOL=0 -DFMILIB_BUILD_STATIC_LIB:BOOL=1 -DFMILIB_BUILD_SHARED_LIB:BOOL=0 -DBUILD_TESTING:BOOL=0 -DFMILIB_BUILD_BEFORE_TESTS:BOOL=0 $(FMIL_FLAGS)
+	cd 3rdParty/FMIL/$(BUILD_DIR) && $(CMAKE) $(CMAKE_TARGET) ../.. -DCMAKE_INSTALL_PREFIX=../../$(INSTALL_DIR) -DFMILIB_BUILD_TESTS:BOOL=0 -DFMILIB_GENERATE_DOXYGEN_DOC:BOOL=0 -DFMILIB_BUILD_STATIC_LIB:BOOL=1 -DFMILIB_BUILD_SHARED_LIB:BOOL=0 -DBUILD_TESTING:BOOL=0 -DFMILIB_BUILD_BEFORE_TESTS:BOOL=0 $(FMIL_FLAGS) -Wno-dev
 
 config-lua: 3rdParty/Lua/$(INSTALL_DIR)/liblua.a
 3rdParty/Lua/$(INSTALL_DIR)/liblua.a:

configWinVS.bat

@@ -94,7 +94,7 @@ IF EXIST "3rdParty\FMIL\build\win\" RMDIR /S /Q 3rdParty\FMIL\build\win
 IF EXIST "3rdParty\FMIL\install\win\" RMDIR /S /Q 3rdParty\FMIL\install\win
 MKDIR 3rdParty\FMIL\build\win
 CD 3rdParty\FMIL\build\win
-cmake.exe -G %OMS_VS_VERSION% ..\.. -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -DFMILIB_INSTALL_PREFIX=..\..\install\win -DFMILIB_BUILD_TESTS:BOOL=0 -DFMILIB_GENERATE_DOXYGEN_DOC:BOOL=0 -DFMILIB_BUILD_STATIC_LIB:BOOL=1 -DFMILIB_BUILD_SHARED_LIB:BOOL=0 -DBUILD_TESTING:BOOL=0 -DFMILIB_BUILD_BEFORE_TESTS:BOOL=0
+cmake.exe -G %OMS_VS_VERSION% ..\.. -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -DCMAKE_INSTALL_PREFIX=..\..\install\win -DFMILIB_BUILD_TESTS:BOOL=0 -DFMILIB_GENERATE_DOXYGEN_DOC:BOOL=0 -DFMILIB_BUILD_STATIC_LIB:BOOL=1 -DFMILIB_BUILD_SHARED_LIB:BOOL=0 -DBUILD_TESTING:BOOL=0 -DFMILIB_BUILD_BEFORE_TESTS:BOOL=0 -Wno-dev
 IF NOT ["%ERRORLEVEL%"]==["0"] GOTO fail
 CD ..\..\..\..
 ECHO # build fmil