+ifeq ($(HAVE_DOXYGEN),1)
+MAN_GZIP_FILES += ${APIMAN}.gz
+apidocs: $(APIMAN)
+install-apidocs: apidocs
+ mkdir -p "$(DESTDIR)$(mandir)/man3"
+ install -m0644 $(DOCBUILDDIR)/man/man3/*.3.gz $(DESTDIR)/$(mandir)/man3
+
+$(APIMAN): $(dir)/config.dox $(srcdir)/$(dir)/doxygen.cfg $(srcdir)/lib/notmuch.h
+ mkdir -p $(DOCBUILDDIR)/man/man3
+ doxygen $(DOXYFILE)
+ perl -pi -e 's/^[.]RI "\\fI/.RI "\\fP/' $(APIMAN)
+else
+apidocs:
+install-apidocs:
+endif
+
+# Do not try to build or install man pages if a man page converter is
+# not available.
+ifeq ($(HAVE_SPHINX)$(HAVE_RST2MAN),00)
+build-man:
+install-man:
+ @echo "No sphinx or rst2man, will not install man pages."
+else
+build-man: ${MAN_GZIP_FILES}