nvidia304: fix install.

srcpkgs/nvidia304/template

@@ -9,6 +9,8 @@ homepage="http://www.nvidia.com"
 
 create_wrksrc=yes
 noextract=yes
+only_for_archs="i686 x86_64"
+
 if [ "${XBPS_MACHINE}" = "i686" ]; then
 	_pkg="NVIDIA-Linux-x86-${version}"
 	distfiles="ftp://download.nvidia.com/XFree86/Linux-x86/${version}/${_pkg}.run"
@@ -20,8 +22,9 @@ else
 fi
 
 do_extract() {
-	install -m755 ${_pkg}.run ${wrksrc}
-	cd ${wrksrc} && ./${_pkg}.run --extract-only
+	install -m755 ${XBPS_SRCDISTDIR}/${_pkg}.run ${wrksrc}
+	cd ${wrksrc}
+	./${_pkg}.run --extract-only
 	rm -f ${_pkg}.run
 }