[rygel] build: Option to enable fatal valac warings

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit d7874d01bc14ec973068b0ea65dc1215fc49461a
Author: Jens Georg <mail jensge org>
Date:   Sun Feb 13 17:22:53 2011 +0100

    build: Option to enable fatal valac warings
    
    Also make this default when running autogen.sh

 autogen.sh   |    4 ++--
 configure.ac |    7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 7f5f354..b891477 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -10,5 +10,5 @@ mkdir -p m4
 # require automak 1.11 for vala support
 export REQUIRED_AUTOMAKE_VERSION=1.11
 gnome-autogen.sh --enable-vala --enable-maintainer-mode --enable-debug \
-                 --enable-test-plugin --enable-mediathek-plugin \
-                 --enable-gst-launch-plugin "$@"
+                 --enable-strict-valac --enable-test-plugin \
+                 --enable-mediathek-plugin --enable-gst-launch-plugin "$@"
diff --git a/configure.ac b/configure.ac
index e086cc2..21e5379 100644
--- a/configure.ac
+++ b/configure.ac
@@ -106,6 +106,13 @@ if test "x$enable_debug" = "xyes"; then
         CFLAGS="$CFLAGS -O0 -g"
 fi
 
+AC_ARG_ENABLE([strict-valac],
+              [  --enable-strict-valac      enable strict Vala compiler],,
+              [enable_strict_valac=no])
+if test "x$enable_strict_valac" = "xyes"; then
+        VALAFLAGS="$VALAFLAGS --fatal-warnings"
+fi
+
 # Strict compiler
 AC_ARG_ENABLE(strict-cc,
 	[  --enable-strict-cc          enable strict C compiler],,