pass the install location for locales (datadir) to subdirectories

--- gcc-3.4.2/libstdc++-v3/Makefile.in	2004-03-18 18:35:12.000000000 +0100
+++ gcc-3.4.2/libstdc++-v3/Makefile.in-p	2004-11-04 01:40:40.864092240 +0100
@@ -220,6 +220,8 @@
 AM_CPPFLAGS = $(GLIBCXX_INCLUDES)
 @GLIBCXX_HOSTED_TRUE@hosted_source = src po
 SUBDIRS = include libmath libsupc++ $(hosted_source) testsuite
+SUBDIR_FLAGS_TO_PASS = \
+	"datadir=$(datadir)"
 
 # Multilib support.
 MAKEOVERRIDES = 
@@ -370,7 +372,7 @@
 	  else \
 	    local_target="$$target"; \
 	  fi; \
-	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $(SUBDIR_FLAGS_TO_PASS) $$local_target) \
 	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
 	done; \
 	if test "$$dot_seen" = "no"; then \