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-rw-r--r--doc/sequence_charts/Makefile.am4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/sequence_charts/Makefile.am b/doc/sequence_charts/Makefile.am
index 6782f44e7..41890a7ac 100644
--- a/doc/sequence_charts/Makefile.am
+++ b/doc/sequence_charts/Makefile.am
@@ -29,6 +29,10 @@ dot: \
$(builddir)/%.png: %.msc
mscgen -T png -o $@ $<
+$(builddir)/%.msc: $(srcdir)/%.ladder
+ @which ladder_to_msc.py || (echo 'PLEASE POINT YOUR $$PATH AT libosmocore/contrib/ladder_to_msc.py' && false)
+ ladder_to_msc.py -i $< -o $@
+
$(builddir)/%.png: $(srcdir)/%.dot
dot -Tpng $< > $@