X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/60aa04a236004d3d03f00aeaf07b643a52ef0760..50977317cd10df482c3b35f61e9ee4522eee3c3b:/doc/local.mk

diff --git a/doc/local.mk b/doc/local.mk
index 54c03ebf..cac9f544 100644
--- a/doc/local.mk
+++ b/doc/local.mk
@@ -20,7 +20,14 @@ doc_bison_TEXINFOS =                            \
   doc/fdl.texi                                  \
   doc/gpl-3.0.texi
 
-TEXI2DVI = texi2dvi --build-dir=doc/bison.t2d
+# Cannot express dependencies directly on file names because of Automake.
+# Obfuscate with a variable.
+doc_bison = doc/bison
+$(doc_bison).dvi: $(FIGS_DOT:.dot=.eps)
+$(doc_bison).pdf: $(FIGS_DOT:.dot=.pdf)
+$(doc_bison).html: $(FIGS_DOT:.dot=.html)
+
+TEXI2DVI = texi2dvi --build-dir=doc/bison.t2d -I doc
 CLEANDIRS = doc/bison.t2d
 clean-local:
 	rm -rf $(CLEANDIRS)
@@ -112,6 +119,34 @@ $(top_srcdir)/doc/bison.1: doc/bison.help doc/bison.x $(top_srcdir)/configure
 
 nodist_man_MANS = doc/yacc.1
 
+## ----------------------------- ##
+## Graphviz examples generation. ##
+## ----------------------------- ##
+
+CLEANDIRS += doc/figs
+FIGS_DOT =                                                      \
+  doc/figs/example.dot                                          \
+  doc/figs/example-reduce.dot doc/figs/example-shift.dot
+EXTRA_DIST +=                                                           \
+  $(FIGS_DOT)                                                           \
+  $(FIGS_DOT:.dot=.eps) $(FIGS_DOT:.dot=.pdf) $(FIGS_DOT:.dot=.png)
+SUFFIXES += .dot .eps .pdf .png
+
+.dot.eps:
+	$(AM_V_GEN) $(MKDIR_P) `echo "./$@" | sed -e 's,/[^/]*$$,,'`
+	$(AM_V_at) $(DOT) -Gmargin=0 -Teps $< >$@.tmp
+	$(AM_V_at) mv $@.tmp $@
+
+.dot.pdf:
+	$(AM_V_GEN) $(MKDIR_P) `echo "./$@" | sed -e 's,/[^/]*$$,,'`
+	$(AM_V_at) $(DOT) -Gmargin=0 -Tpdf $< >$@.tmp
+	$(AM_V_at) mv $@.tmp $@
+
+.dot.png:
+	$(AM_V_GEN) $(MKDIR_P) `echo "./$@" | sed -e 's,/[^/]*$$,,'`
+	$(AM_V_at) $(DOT) -Gmargin=0 -Tpng $< >$@.tmp
+	$(AM_V_at) mv $@.tmp $@
+
 ## -------------- ##
 ## Doxygenation.  ##
 ## -------------- ##