http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52122
--- Comment #30 from vries at gcc dot gnu.org 2013-02-13 10:06:11 UTC --- This will probably fix it: ... Index: Makefile.in =================================================================== --- Makefile.in (revision 195997) +++ Makefile.in (working copy) @@ -115,8 +115,8 @@ && touch stamp-libada -rm -rf adainclude -rm -rf adalib - $(LN_S_RECUSIVE) $(ADA_RTS_DIR) adainclude - $(LN_S_RECUSIVE) $(ADA_RTS_DIR) adalib + $(LN_S_RECURSIVE) $(ADA_RTS_DIR) adainclude + $(LN_S_RECURSIVE) $(ADA_RTS_DIR) adalib osconstool: $(MAKE) -C $(GCC_DIR)/ada $(LIBADA_FLAGS_TO_PASS) ./bldtools/oscons/xoscons ...