[farsight2/master] Declare variable to make automake happy

[Olivier Crête]

---
 docs/libs/Makefile.am |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/docs/libs/Makefile.am b/docs/libs/Makefile.am
index 7e11844..8b7f98e 100644
--- a/docs/libs/Makefile.am
+++ b/docs/libs/Makefile.am
@@ -54,6 +54,9 @@ IGNORE_HFILES = fs-marshal.h fs-enum-types.h fs-private.h
 # Images to copy into HTML directory.
 HTML_IMAGES =
 
+# Extra SGML files that are included by $(DOC_MAIN_SGML_FILE).
+content_files =
+
 # Other files to distribute.
 extra_files =
 
-- 
1.5.6.5