Ticket #61: imported libsrtp into third_party directory (backported from srtp branch)

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1730 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/third_party/srtp/doc/Makefile b/third_party/srtp/doc/Makefile
new file mode 100644
index 0000000..d4c0845
--- /dev/null
+++ b/third_party/srtp/doc/Makefile
@@ -0,0 +1,44 @@
+# Makefile for libSRTP documentation
+#
+# David A. McGrew
+# Cisco Systems, Inc.
+#
+# This makefile does not use the autoconf system; we don't really need
+# it.  We just run doxygen then latex.  If you don't have either of
+# these, then there is no way that you can make your own
+# documentation.  Of course, you can just go online at pick up the
+# documentation from http://srtp.sourceforge.net.
+
+srcdir = .
+top_srcdir = ..
+top_builddir = ../
+
+
+# Determine the version of the library
+
+version = $(shell cat $(top_srcdir)/VERSION)
+
+
+.PHONY: libsrtpdoc cryptodoc clean
+libsrtpdoc: 
+	@if test ! -e Doxyfile; then \
+		echo "*** Sorry, can't build doc outside source dir"; exit 1; \
+	fi
+	sed 's/LIBSRTPVERSION/$(version)/' header.template > header.tex
+	doxygen
+	sed 's/\subsection/\section/' latex/index.tex > latex/index.tmp
+	mv latex/index.tmp latex/index.tex
+	cd latex; make
+	cp latex/refman.pdf libsrtp.pdf
+
+
+cryptodoc: clean
+	doxygen crypto.dox
+	cd latex; make
+	cp latex/refman.pdf crypto.pdf
+
+clean:
+	rm -rf latex/ header.tex
+	for a in * ; do			                \
+              if [ -f "$$a~" ] ; then rm -f $$a~; fi;	\
+        done;