-dnl GHC-only part of fptools configuration
-dnl
-dnl Copyright (c) 1999 Manuel M. T. Chakravarty <chak@acm.org>
-dnl
-dnl This file is subject to the same free software license as GHC.
-
-dnl ######################################################################
-dnl Process this file with autoconf to produce a configure script.
-dnl ######################################################################
-
-
-dnl * Initialise and check sanity.
-AC_INIT(ghc.spec.in)
-
-dnl * Compute the version number.
-version=`sed -e 's/.*\([[0-9]]\)\.\([[0-9]]*\).*/\1.\2/' VERSION`
-patchlevel=1
-
-dnl These are needed by the .spec file.
-AC_SUBST(version)
-AC_SUBST(patchlevel)
-
-dnl Uncomment links to unix docs if necessary dnl NOTE: This is a slight
-dnl hack: It needs to be synchronized with fptools/configure.ac and
-dnl fptools/libraries/Makefile and should probably use target features
-dnl instead of host.
-AC_CANONICAL_HOST
-
-case $host in
-i[3456]86-*-mingw32*)
- unixHTMLStart="<!--"
- unixHTMLEnd="-->"
- ;;
-*)
- unixHTMLStart=""
- unixHTMLEnd=""
- ;;
+# Initialise and check sanity.
+AC_INIT([Glasgow Haskell Compiler], [6.3], [glasgow-haskell-bugs@haskell.org], [ghc])
+AC_CONFIG_SRCDIR([ghc.spec.in])
+
+# Calculate project version as an integer, using 2 digits for minor version
+case $PACKAGE_VERSION in
+ *.?) ProjectVersionInt=`echo "$PACKAGE_VERSION" | sed 's,^\(.*\)\.\(.\)$,\10\2,'` ;;
+ *.??) ProjectVersionInt=`echo "$PACKAGE_VERSION" | sed 's,^\(.*\)\.\(..\)$,\1\2,'` ;;
+ *) AC_MSG_ERROR([bad package version $PACKAGE_VERSION]) ;;