Unclutter 'make doc' output a bit

* Makefile.in ($(DOCS), $(INSTALL_DOC), $(UNINSTALL_DOC)):
Use make subst rather than sh IFS to split target string apart.
This makes 'make' output easier to follow.

1 files changed, 3 insertions, 3 deletions

diff --git a/Makefile.in b/Makefile.in
index f88a9c5d309..858a34d9423 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -940,7 +940,7 @@ PSS   = lispref-ps   lispintro-ps   emacs-ps   misc-ps
 
 DOCS = $(DVIS) $(HTMLS) $(INFOS) $(PDFS) $(PSS)
 $(DOCS):
-        t=$@; IFS=-; set $$t; IFS=; $(MAKE) -C doc/$$1 $$2
+        $(MAKE) -C doc/$(subst -, ,$@)
 
 .PHONY: $(DOCS) docs pdf ps
 .PHONY: info dvi dist check html info-real info-dir check-info
@@ -997,7 +997,7 @@ INSTALL_DOC = $(INSTALL_DVI) $(INSTALL_HTML) $(INSTALL_PDF) $(INSTALL_PS)
 ## Install non .info forms of the documentation.
 ## TODO add etc/refcards.
 $(INSTALL_DOC):
-        t=$@; IFS=-; set $$t; IFS=; $(MAKE) -C doc/$$2 $$1-$$3
+        $(MAKE) -C doc/$(subst -, install-,$(subst install-,,$@))
 
 .PHONY: $(INSTALL_DOC) install-doc
 .PHONY: install-dvi install-html install-pdf install-ps
@@ -1020,7 +1020,7 @@ UNINSTALL_PS = uninstall-emacs-ps uninstall-lispref-ps \
 UNINSTALL_DOC = $(UNINSTALL_DVI) $(UNINSTALL_HTML) $(UNINSTALL_PDF) $(UNINSTALL_PS)
 
 $(UNINSTALL_DOC):
-        t=$@; IFS=-; set $$t; IFS=; $(MAKE) -C doc/$$2 $$1-$$3
+        $(MAKE) -C doc/$(subst -, uninstall-,$(subst uninstall-,,$@))
 
 .PHONY: $(UNINSTALL_DOC) uninstall-doc
 .PHONY: uninstall-dvi uninstall-html uninstall-pdf uninstall-ps