Fix the SEMLA Windows build.

Belonging to [master]:
  - OpenModelica/OMCompiler#2208

Makefile.common

@@ -42,8 +42,8 @@ semla: mkbuilddirs
 	mv $(builddir_lib)/omc/SEMLA/lve$(EXE) $(builddir_lib)/omc/SEMLA/LVE/lve_$(LVE_EXE_SUFFIX)$(EXE)
 
 semla-clean:
-	#rm -rf ../SEMLA/build
-	#rm -rf ../SEMLA/install
+	rm -rf ../SEMLA/build
+	rm -rf ../SEMLA/install
 endif # end of OMENCRYPTION
 
 mkbuilddirs:

Makefile.omdev.mingw

@@ -265,10 +265,10 @@ copycppmsvcheader: getMSVCversion
 	(cp -puf $(BOOST_PATH_MSVC)/boost/*.hpp              $(OMBUILDDIR)/include/omc/cpp/3rdParty/boost/msvc/boost)
 	(cp -pufr $(BOOST_PATH_MSVC)/boost/*                 $(OMBUILDDIR)/include/omc/cpp/3rdParty/boost/msvc/boost)
 
-ifeq ($(OMENCRYPTION),ON)
-omc: mkbuilddirs interactive fmil omdev_extra_dlls breakprocess opencl_rt CMinpack metis Cdaskr $(IPOPT_TARGET) graphstream
-else
+ifeq ($(OMENCRYPTION),yes)
 omc: mkbuilddirs interactive fmil omdev_extra_dlls breakprocess opencl_rt CMinpack metis Cdaskr $(IPOPT_TARGET) graphstream semla
+else
+omc: mkbuilddirs interactive fmil omdev_extra_dlls breakprocess opencl_rt CMinpack metis Cdaskr $(IPOPT_TARGET) graphstream
 endif
 	(time $(MAKE) -f $(defaultMakefileTarget) CFLAGS="$(CFLAGS)" omc-bootstrapped OMBUILDDIR=$(OMBUILDDIR))