doc: introduce stamp file for info build

This partially fixes (i.e. just for sphinx) the problem reported by
Daniel in id:87r29wwgq2.fsf@fifthhorseman.net.

diff --git a/doc/Makefile.local b/doc/Makefile.local
index 1782c784c1e95fc464e72f61d42b6100d93550c6..c2ae1743b0fa42bd04989990c7346ce9123fe6b1 100644 (file)
--- a/doc/Makefile.local
+++ b/doc/Makefile.local
@@ -64,8 +64,11 @@ $(DOCBUILDDIR)/.texi.stamp: $(ALL_RST_FILES) $(DOC_PREREQS)
        $(SPHINXBUILD) -b texinfo -d $(DOCBUILDDIR)/texinfo_doctrees $(ALLSPHINXOPTS) $(DOCBUILDDIR)/texinfo
        touch $@
 
-sphinx-info: sphinx-texinfo
+sphinx-info: $(DOCBUILDDIR)/.info.stamp
+
+$(DOCBUILDDIR)/.info.stamp: $(DOCBUILDDIR)/.texi.stamp $(DOC_PREREQS)
        $(MAKE) -C $(DOCBUILDDIR)/texinfo info
+       touch $@
 
 # Use the man page converter that is available. We should never depend
 # on MAN_ROFF_FILES if a converter is not available.
@@ -129,7 +132,7 @@ ifneq ($(HAVE_SPHINX)$(HAVE_MAKEINFO),11)
 build-info:
        @echo "Missing sphinx or makeinfo, not building info pages"
 else
-build-info: sphinx-info
+build-info: $(DOCBUILDDIR)/.info.stamp
 endif
 
 ifneq ($(HAVE_SPHINX)$(HAVE_MAKEINFO)$(HAVE_INSTALL_INFO),111)
@@ -147,5 +150,5 @@ $(dir)/config.dox: version.stamp
        echo "INPUT=${srcdir}/lib/notmuch.h" >> $@
 
 CLEAN := $(CLEAN) $(DOCBUILDDIR) $(DOCBUILDDIR)/.roff.stamp $(DOCBUILDDIR)/.texi.stamp
-CLEAN := $(CLEAN) $(DOCBUILDDIR)/.html.stamp
+CLEAN := $(CLEAN) $(DOCBUILDDIR)/.html.stamp $(DOCBUILDDIR)/.info.stamp
 CLEAN := $(CLEAN) $(MAN_GZIP_FILES) $(MAN_ROFF_FILES) $(dir)/conf.pyc $(dir)/config.dox