[gnome-photos] build: Fix builddir != srcdir

[Florian Müllner <fmuellner src gnome org>]

commit 223f2f44561cd1e27def5dccbce0781175cfaf59
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Jun 6 23:18:40 2016 +0200

    build: Fix builddir != srcdir

 autogen.sh |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index b4e0d5f..1a7325d 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -9,6 +9,9 @@ test -z "$srcdir" && srcdir=.
     exit 1
 }
 
+olddir=`pwd`
+cd $srcdir
+
 PKG_NAME=`autoconf --trace "AC_INIT:$1" "$srcdir/configure.ac"`
 ACLOCAL_FLAGS="-I libgd $ACLOCAL_FLAGS"
 
@@ -34,6 +37,8 @@ set -x
 intltoolize --force --copy --automake || exit 1
 autoreconf --verbose --force --install -Wno-portability || exit 1
 
+cd $olddir
+
 if [ "$NOCONFIGURE" = "" ]; then
         $srcdir/configure "$@" || exit 1