Install libfast development headers

src/libfast/Makefile.am

@@ -1,7 +1,12 @@
 ipseclib_LTLIBRARIES = libfast.la
 
-libfast_la_SOURCES = context.h dispatcher.c request.h session.h \
-  controller.h dispatcher.h request.c session.c filter.h smtp.c smtp.h
+libfast_la_SOURCES = \
+	dispatcher.c request.c session.c smtp.c
+
+fast_includedir = $(includedir)/strongswan/fast
+nobase_fast_include_HEADERS = \
+	context.h controller.h dispatcher.h filter.h request.h session.h smtp.h
+
 libfast_la_LIBADD = $(top_builddir)/src/libstrongswan/libstrongswan.la \
   -lfcgi $(clearsilver_LIBS) $(PTHREADLIB)
 INCLUDES = -I$(top_srcdir)/src/libstrongswan -I/usr/include/ClearSilver