add exe extention to frozen_module, so it doesnt get built every run

Author: SilvanScherrer

Makefile.pre.in

@@ -1548,7 +1548,7 @@ Programs/_freeze_module.o: Programs/_freeze_module.c Makefile
 
 Modules/getpath_noop.o: $(srcdir)/Modules/getpath_noop.c Makefile
 
-Programs/_freeze_module: Programs/_freeze_module.o Modules/getpath_noop.o $(LIBRARY_OBJS_OMIT_FROZEN)
+Programs/_freeze_module$(EXE): Programs/_freeze_module.o Modules/getpath_noop.o $(LIBRARY_OBJS_OMIT_FROZEN)
 	$(LINKCC) $(PY_CORE_LDFLAGS) -o $@ Programs/_freeze_module.o Modules/getpath_noop.o $(LIBRARY_OBJS_OMIT_FROZEN) $(LIBS) $(MODLIBS) $(SYSLIBS)
 
 # We manually freeze getpath.py rather than through freeze_modules

configure.ac

@@ -191,8 +191,8 @@ AS_VAR_IF([cross_compiling], [yes],
   ],
   [
     dnl internal build tools also depend on Programs/_freeze_module and _bootstrap_python.
-    FREEZE_MODULE_BOOTSTRAP='./Programs/_freeze_module'
-    FREEZE_MODULE_BOOTSTRAP_DEPS="Programs/_freeze_module"
+    FREEZE_MODULE_BOOTSTRAP='./Programs/_freeze_module$(EXE)'
+    FREEZE_MODULE_BOOTSTRAP_DEPS="Programs/_freeze_module\$(EXE)"
     FREEZE_MODULE='$(PYTHON_FOR_FREEZE) $(srcdir)/Programs/_freeze_module.py'
     FREEZE_MODULE_DEPS="_bootstrap_python \$(srcdir)/Programs/_freeze_module.py"
     PYTHON_FOR_BUILD_DEPS='$(BUILDPYTHON)'