doc: set locale explicitly for building doc.

cde/doc/common/guides/guides_env.am

@@ -9,8 +9,8 @@ INFOLIBNAME = -n cde
 # orig: INFOLIBDESC = -d InfoLibDesc
 
 SSENTS = -m common/catalog
-DGENV = LC_CTYPE=$(LANG) SGML_SEARCH_PATH=".:.."
-DTINFOGENOPTIONS = $(SSENTS) $(INFOLIBNAME) -d $(INFOLIBDESC)
+DGENV = SGML_SEARCH_PATH=".:.."
+DTINFOGENOPTIONS = -L $(LANG) $(SSENTS) $(INFOLIBNAME) -d $(INFOLIBDESC)
 
 # Note the quad-dollar sign - this escapes $$ (pid) for the tmp
 # dir. This is required for multi-core builds to work.

cde/doc/common/help/sdl-docs.am

@@ -19,7 +19,7 @@ DTHELP_HTAG2 = $(top_builddir)/programs/dthelp/parser/pass2/parser/dthelp_htag2
 # but the $(basename...) seems to add a space for some reason
 
 %.sdl:
-	LC_CTYPE=$(LANG) SGML_SEARCH_PATH=".:.." \
+	SGML_SEARCH_PATH=".:.." \
 		$(KSH) $(DTDOCBOOK) -H $(DTHELP_HTAG2) -L $(LANG) \
 			-o $@ `basename $@ .sdl`/book.sgm