[librsvg] autogen.sh: Replace deprecated gnome-autogen.sh with standard autotools

[Javier Jardón Cabezas <jjardon src gnome org>]

commit 6eabff9d11d9111a9565ae4cdeed841157308737
Author: Javier Jardón <jjardon gnome org>
Date:   Mon Feb 8 13:15:25 2016 +0000

    autogen.sh: Replace deprecated gnome-autogen.sh with standard autotools
    
    See https://wiki.gnome.org/Projects/GnomeCommon/Migration

 autogen.sh |   61 ++++++++++++++++++++++++++++-------------------------------
 1 files changed, 29 insertions(+), 32 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 0bb25fb..9a0985b 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,41 +1,38 @@
 #!/bin/sh
 # Run this to generate all the initial makefiles, etc.
+test -n "$srcdir" || srcdir=$(dirname "$0")
+test -n "$srcdir" || srcdir=.
 
-#name of package
-PKG_NAME="librsvg"
+olddir=$(pwd)
 
-REQUIRED_AUTOMAKE_VERSION=1.7.1
-REQUIRED_AUTOCONF_VERSION=2.54
+cd $srcdir
 
-USE_GNOME2_MACROS=1
-
-srcdir=`dirname $0`
-test -z "$srcdir" && srcdir=.
-
-(test -f $srcdir/configure.ac \
-  && test -d $srcdir/gdk-pixbuf-loader \
-  && test -f $srcdir/gdk-pixbuf-loader/io-svg.c) || {
-    echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
-    echo " top-level librsvg directory"
-    exit 1
+(test -f configure.ac) || {
+        echo "*** ERROR: Directory '$srcdir' does not look like the top-level project directory ***"
+        exit 1
 }
 
-ifs_save="$IFS"; IFS=":"
-for dir in $PATH ; do
-  IFS="$ifs_save"
-  test -z "$dir" && dir=.
-  if test -f $dir/gnome-autogen.sh ; then
-    gnome_autogen="$dir/gnome-autogen.sh"
-    gnome_datadir=`echo $dir | sed -e 's,/bin$,/share,'`
-    break
-  fi
-done
-
-if test -z "$gnome_autogen" ; then
-  echo "You need to install the gnome-common module and make"
-  echo "sure the gnome-autogen.sh script is in your \$PATH."
-  exit 1
+# shellcheck disable=SC2016
+PKG_NAME=$(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
 fi
 
-GNOME_DATADIR="$gnome_datadir"
-. $gnome_autogen
+aclocal --install || exit 1
+gtkdocize --copy || exit 1
+autoreconf --verbose --force --install || exit 1
+
+cd "$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
+        fi
+else
+        echo "Skipping configure process."
+fi