[PATCH 1/4] doc: don't attempt to build info pages if Emacs is missing.

[David Bremner]

This is a sledgehammer approach to conditionally (not) build the
notmuch-emacs documentation, since it is currently the only thing that
needs Emacs to build.  Hopefully in the future we can come up with a
cleaner way of disabling building the notmuch-emacs docs when emacs is
missing.
---
 doc/Makefile.local | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/doc/Makefile.local b/doc/Makefile.local
index dfe62295..c148d74a 100644
--- a/doc/Makefile.local
+++ b/doc/Makefile.local
@@ -116,14 +116,14 @@ install-man: ${MAN_GZIP_FILES}
 	cd $(DESTDIR)/$(mandir)/man1 && ln -sf notmuch.1.gz notmuch-setup.1.gz
 endif
 
-ifneq ($(HAVE_SPHINX)$(HAVE_MAKEINFO),11)
+ifneq ($(HAVE_SPHINX)$(HAVE_MAKEINFO)$(HAVE_EMACS),111)
 build-info:
-	@echo "Missing sphinx or makeinfo, not building info pages"
+	@echo "Missing prerequisites, not building info pages"
 else
 build-info: sphinx-info
 endif
 
-ifneq ($(HAVE_SPHINX)$(HAVE_MAKEINFO)$(HAVE_INSTALL_INFO),111)
+ifneq ($(HAVE_SPHINX)$(HAVE_MAKEINFO)$(HAVE_INSTALL_INFO)$(HAVE_EMACS),1111)
 install-info:
 	@echo "Missing prerequisites, not installing info pages"
 else
-- 
2.20.1