jam: x86_64 support

dev-java/jamvm/jamvm-1.5.4.recipe

@@ -5,14 +5,14 @@ version 2 (blue book). In comparison to most other VM's (free and commercial) \
 it is extremely small.
 "
 HOMEPAGE="http://jamvm.sourceforge.net/" 
-SRC_URI="http://sourceforge.net/projects/jamvm/files/jamvm/JamVM%201.5.4/jamvm-1.5.4.tar.gz/download"
+SRC_URI="http://sourceforge.net/projects/jamvm/files/jamvm/JamVM%20$portVersion/jamvm-$portVersion.tar.gz"
 CHECKSUM_SHA256="7865693698bc4322cabe1014a4b7ebdec1bc1daf45f1a4457b6e908a4446b124"
 REVISION="1"
 DEPEND=""
 LICENSE="GNU GPL v2"
 COPYRIGHT="2003-2010 Robert Lougher"
 
-ARCHITECTURES="x86 ?x86_64"
+ARCHITECTURES="x86 x86_64"
 if [ $effectiveTargetArchitecture != x86_gcc2 ]; then
 	# x86_gcc2 is fine as primary target architecture as long as we're building
 	# for a different secondary architecture.
@@ -37,21 +37,20 @@ BUILD_REQUIRES="
 	devel:libz$secondaryArchSuffix >= 1.2.8
 	"
 BUILD_PREREQUIRES="
-	cmd:autoconf
+	cmd:autoreconf
 	cmd:aclocal
 	cmd:libtool
 	cmd:make
 	cmd:gcc$secondaryArchSuffix
+	cmd:find
 	"
 
 
-PATCHES="jamvm-1.5.4.patch"
+PATCHES="jamvm-$portVersion.patchset"
 
 BUILD()
 {
-	libtoolize --force --copy --install
-	aclocal
-	autoconf
+	autoreconf -fi
 	runConfigure ./configure \
 		--with-classpath-install-dir=$prefix
 	make