diff -u -b -B -r1.1 avrdude-5.1.ebuild
--- avrdude-5.1.ebuild	24 Jan 2006 13:49:15 -0000	1.1
+++ avrdude-5.1.ebuild	26 Jan 2006 14:05:34 -0000
@@ -2,9 +2,11 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/dev-embedded/avrdude/avrdude-5.1.ebuild,v 1.1 2006/01/24 13:49:15 brix Exp $
 
+inherit eutils
+
 DESCRIPTION="AVR Downloader/UploaDEr"
 HOMEPAGE="http://savannah.nongnu.org/projects/avrdude"
-SRC_URI="http://savannah.nongnu.org/download/avrdude/${P}.tar.gz"
+SRC_URI="http://savannah.nongnu.org/download/${PN}/${P}.tar.gz"
 
 LICENSE="GPL-2"
 SLOT="0"
@@ -19,8 +21,16 @@
 			   sys-apps/texinfo )
 		sys-devel/bison
 		sys-devel/flex
+		sys-devel/patch
 		${RDEPEND}"
 
+src_unpack() {
+	unpack ${A}
+	cd ${S}
+
+	use amd64 && epatch ${FILESDIR}/${P}-define.patch
+}
+
 src_compile() {
 	econf $(use_enable doc) || die "econf failed"
 	emake || die "emake failed"
diff -N files/avrdude-5.1-define.patch
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ files/avrdude-5.1-define.patch	26 Jan 2006 14:05:34 -0000
@@ -0,0 +1,20 @@
+--- lexer.c	2006-01-23 22:46:01.000000000 +0100
++++ lexer.c	2006-01-26 14:43:18.000000000 +0100
+@@ -8,7 +8,7 @@
+ #if defined(__FreeBSD__)
+ #include <sys/cdefs.h>
+ #else
+-#define __unused
++#define _unused
+ #endif
+ 
+ #define FLEX_SCANNER
+@@ -247,7 +247,7 @@
+ YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));
+ 
+ static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
+-static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )) __unused;
++static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )) _unused;
+ static void yy_flex_free YY_PROTO(( void * ));
+ 
+ #define yy_new_buffer yy_create_buffer