[folks] Ensure the telepathy-vala configure check works for builddir != srcdir

[Philip Withnall <pwithnall src gnome org>]

commit f22c53165a6fcc6d1d7c6e5c8b8b96047c7ea071
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Wed Aug 11 17:08:46 2010 +0100

    Ensure the telepathy-vala configure check works for builddir != srcdir

 Makefile.am  |    1 +
 configure.ac |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 8595da7..2873ff1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -13,6 +13,7 @@ DISTCHECK_CONFIGURE_FLAGS = --enable-docs
 
 EXTRA_DIST = \
 	autogen.sh \
+	telepathy-check.vala \
 	$(NULL)
 
 MAINTAINERCLEANFILES = \
diff --git a/configure.ac b/configure.ac
index 088dd2a..6af0b88 100644
--- a/configure.ac
+++ b/configure.ac
@@ -119,7 +119,7 @@ AC_SUBST(TP_GLIB_LIBS)
 # check for tp-glib vala bindings by compiling a trivial program
 AC_MSG_CHECKING([Telepathy Vala bindings])
 AS_IF(! [$VALAC $VALACFLAGS $VALAFLAGS --vapidir=$VAPIDIR --pkg telepathy-glib \
-	 -o /dev/null telepathy-check.vala],
+	 -o /dev/null "${srcdir}/telepathy-check.vala"],
 	[AC_MSG_ERROR([Missing telepathy-glib Vala bindings])])
 AC_MSG_RESULT([yes])