http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52122
--- Comment #27 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2013-02-12 20:16:29 UTC --- (In reply to comment #23) > Try to use LN_S_RECURSIVE:= instead of LN_S_RECURSIVE= As in --- ../_clean/libada/Makefile.in 2013-02-12 16:45:25.000000000 +0100 +++ libada/Makefile.in 2013-02-12 19:16:14.000000000 +0100 @@ -44,9 +44,9 @@ LN_S=@LN_S@ AWK=@AWK@ ifeq (cp -p,$(LN_S)) -LN_S_RECURSIVE = cp -pR +LN_S_RECURSIVE := cp -pR else -LN_S_RECURSIVE = $(LN_S) +LN_S_RECURSIVE := $(LN_S) endif # Variables for the user (or the top level) to override. ? If yes, it does not work.