[gexiv2] Fix make check when run out-of-tree

[Jens Georg <jensgeorg src gnome org>]

commit 51857d5203d3098d0574413594764ece4d16370c
Author: Jens Georg <mail jensge org>
Date:   Mon Jun 5 08:06:25 2017 +0200

    Fix make check when run out-of-tree

 check.am |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/check.am b/check.am
index df1dc79..66a0035 100644
--- a/check.am
+++ b/check.am
@@ -28,7 +28,8 @@ check_PROGRAMS += test/gexiv2-dump
 test_gexiv2_dump_SOURCES = test/gexiv2-dump.vala
 endif
 
-AM_VALAFLAGS = --pkg gexiv2 --pkg glib-2.0 --vapidir=$(top_srcdir)
+AM_VALAFLAGS = --pkg gexiv2 --pkg glib-2.0 \
+       --vapidir=$(abs_top_srcdir) --vapidir=$(abs_top_builddir)
 
 LDADD = \
        $(top_builddir)/libgexiv2.la \