diff --git a/doc/docsrc/Makefile.am b/doc/docsrc/Makefile.am
new file mode 100644
index 0000000..1fe2419
--- /dev/null
+++ b/doc/docsrc/Makefile.am
@@ -0,0 +1,10 @@
+
+regen:
+	pdflatex --output-format=dvi asn1c-usage
+	pdflatex --output-format=dvi asn1c-usage
+	pdflatex --output-format=dvi asn1c-usage
+	dvipdf asn1c-usage
+
+EXTRA_DIST = $(srcdir)/*.tex
+
+CLEANFILES = *.*~ *.aux *.dvi *.log *.out *.toc