[atk] build: Fix builddir ≠ srcdir in autogen.s h

[Philip Withnall <pwithnall src gnome org>]

commit 114a1067298ff62d7b5ad64fd5c335453738f988
Author: Philip Withnall <philip tecnocode co uk>
Date:   Wed Mar 2 00:12:32 2016 +0000

    build: Fix builddir ≠ srcdir in autogen.sh
    
    gtkdocize either needs a --srcdir argument or needs to be run in the
    source directory. Fix that by updating autogen.sh from the latest
    template:
    
    https://wiki.gnome.org/Projects/GnomeCommon/Migration#autogen.sh

 autogen.sh |   50 ++++++++++++++++++++++----------------------------
 1 files changed, 22 insertions(+), 28 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index fa75ed1..1dc2281 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,44 +1,38 @@
 #!/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
+cd $srcdir
+
+(test -f configure.ac) || {
+       echo "*** ERROR: Directory '$srcdir' does not look like the top-level project directory ***"
+       exit 1
 }
 
-PKG_NAME=`autoconf --trace "AC_INIT:$1" "$srcdir/configure.ac"`
+# 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
-
-# if the AC_CONFIG_MACRO_DIR() macro is used, create that directory
-# This is a automake bug fixed in automake 1.13.2
-# See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13514
-m4dir=`autoconf --trace 'AC_CONFIG_MACRO_DIR:$1'`
-if [ -n "$m4dir" ]; then
-        mkdir -p $m4dir
+       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
 
-set -x
-
+aclocal --install || exit 1
 gtkdocize --copy || exit 1
-autoreconf --verbose --force --install -Wno-portability || exit 1
+autoreconf --verbose --force --install || exit 1
 
+cd "$olddir"
 if [ "$NOCONFIGURE" = "" ]; then
-        $srcdir/configure "$@" || exit 1
+       $srcdir/configure "$@" || exit 1
 
-        if [ "$1" = "--help" ]; then exit 0 else
-                echo "Now type \`make\' to compile $PKG_NAME" || exit 1
-        fi
+       if [ "$1" = "--help" ]; then exit 0 else
+               echo "Now type 'make' to compile $PKG_NAME" || exit 1
+fi
 else
-        echo "Skipping configure process."
+       echo "Skipping configure process."
 fi
-
-set +x