[gnome-photos] build: Update to the latest version of the sample template

[Debarshi Ray <debarshir src gnome org>]

commit 68f6dc98a76028a91afc69d030744810e690fe68
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Aug 17 12:10:18 2017 +0200

    build: Update to the latest version of the sample template
    
    ... given in:
    https://wiki.gnome.org/Projects/GnomeCommon/Migration
    
    Note that the suggestion to use aclocal before intltoolize and
    autoreconf doesn't work with the LIBGD_INIT macro and breaks the build.

 autogen.sh |   45 +++++++++++++++++++++------------------------
 1 files changed, 21 insertions(+), 24 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 69c4827..d0c3afa 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,44 +1,41 @@
 #!/bin/sh
 # Run this to generate all the initial makefiles, etc.
+test -n "$srcdir" || srcdir=$(dirname "$0")
+test -n "$srcdir" || srcdir=.
 
-srcdir=`dirname $0`
-test -z "$srcdir" && srcdir=.
+olddir=$(pwd)
 
-(test -f $srcdir/configure.ac) || {
-    echo "**Error**: Directory "\`$srcdir\'" does not look like the top-level project directory"
-    exit 1
-}
-
-olddir=`pwd`
 cd $srcdir
 
-PKG_NAME=`autoconf --trace "AC_INIT:$1" "$srcdir/configure.ac"`
-ACLOCAL_FLAGS="-I libgd $ACLOCAL_FLAGS"
+(test -f configure.ac) || {
+        echo "*** ERROR: Directory '$srcdir' does not look like the top-level project directory ***"
+        exit 1
+}
+
+# shellcheck disable=SC2016
+PKG_NAME=$(autoconf --trace 'AC_INIT:$1' configure.ac)
 
 if [ "$#" = 0 -a "x$NOCONFIGURE" = "x" ]; then
-    echo "**Warning**: I am going to run \`configure' with no arguments." >&2
-    echo "If you wish to pass any to it, please specify them on the" >&2
-    echo \`$0\'" command line." >&2
-    echo "" >&2
+        echo "*** WARNING: I am going to run 'configure' with no arguments." >&2
+        echo "*** If you wish to pass any to it, please specify them on the" >&2
+        echo "*** '$0' command line." >&2
+        echo "" >&2
 fi
 
-git submodule update --init --recursive
-
-set -x
+git submodule update --init --recursive || exit 1
 
 intltoolize --force --copy --automake || exit 1
-autoreconf --verbose --force --install -Wno-portability || exit 1
-
-cd $olddir
+autoreconf --verbose --force --install || exit 1
 
+cd "$olddir"
 if [ "$NOCONFIGURE" = "" ]; then
         $srcdir/configure "$@" || exit 1
 
-        if [ "$1" = "--help" ]; then exit 0 else
-                echo "Now type \`make\' to compile $PKG_NAME" || exit 1
+        if [ "$1" = "--help" ]; then
+                exit 0
+        else
+                echo "Now type 'make' to compile $PKG_NAME" || exit 1
         fi
 else
         echo "Skipping configure process."
 fi
-
-set +x