Use the generic GNOME autogen.sh

Make the behaviour more consistent by using the standard gnome
autogen.sh from https://wiki.gnome.org/Projects/GnomeCommon/Migration

.
This makes autogen correctly behave when NOCONFIGURE is set amongst
other things.

Also remove configure,{README,INSTALL}{.in,} from EXTRA_DIST and leave it up to
autofoo to import a standard INSTALL file.

Reviewed-by: Justin Kim <justin.kim@collabora.com>
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D2063

Makefile.am

-
-
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 
 PACKAGE = newport

autogen.sh

-#! /bin/bash
+#!/bin/sh
 # Run this to generate all the initial makefiles, etc.
+test -n "$srcdir" || srcdir=$(dirname "$0")
+test -n "$srcdir" || srcdir=.
 
-PROJECT=newport
+olddir=$(pwd)
 
-test -d m4 || mkdir m4
-GTKDOCIZE=`which gtkdocize`
-if test -z $GTKDOCIZE; then
-  echo "*** No gtk-doc support ***"
-  echo "EXTRA_DIST =" > gtk-doc.make
-else
-  gtkdocize || exit $?
+cd $srcdir
+
+(test -f configure.ac) || {
+	echo "*** ERROR: Directory '$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
 fi
 
-autoreconf -v -f --install -Wno-portability || exit $?
-./configure "$@"  && echo "Now type 'make' to compile $PROJECT."
+aclocal --install || exit 1
+gtkdocize --copy || exit 1
+autoreconf --verbose --force --install || exit 1
+
+cd "$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