org: use optipng to compress png files

* doc/Makefile.am: If optipng is present, run it in dist-hook.

org: use optipng to compress png files
* doc/Makefile.am: If optipng is present, run it in dist-hook.
29fc0f5c · Alexandre Duret-Lutz · 659dfe95 · 29fc0f5c
Commit 29fc0f5c authored Aug 07, 2015 by Alexandre Duret-Lutz
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -108,3 +108,8 @@ EXTRA_DIST = \
  $(ORG_FILES) \
  $(srcdir)/org-stamp \
  $(srcdir)/userdoc
+
+dist-hook: optipng
+.PHONY: optipng
+optipng:
+	-(optipng -v >/dev/null) && optipng -o5 $(distdir)/userdoc/*.png