conditionalize upon wxwidgets configuration

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@49408 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/Makefile

@@ -19,8 +19,10 @@ PYDSTDIRS := $(patsubst %,$(ETCDIR)/%,core dbm gcp gmodeler gui_core lmgr locati
 	mapdisp modules nviz psmap vdigit wxplot)
 DSTDIRS := $(patsubst %,$(ETCDIR)/%,compat icons scripts xml)
 
+ifneq ($(strip $(WXVERSION)),)
 default: $(DSTFILES) menustrings.py
 	$(MAKE) parsubdirs
+endif
 
 $(ETCDIR)/%: % | $(PYDSTDIRS) $(DSTDIRS)
 	$(INSTALL_DATA) $< $@