elfutils: apply 009-no-fts.patch only on musl.

srcpkgs/elfutils/template

@@ -1,7 +1,7 @@
 # Template file for 'elfutils'
 pkgname=elfutils
 version=0.161
-revision=2
+revision=3
 build_style=gnu-configure
 configure_args="--program-prefix=eu-"
 hostmakedepends="m4"
@@ -21,6 +21,9 @@ esac
 
 post_extract() {
 	sed -i '/<linux\/uio.h>/d' backends/*_initreg.c
+	case "$XBPS_TARGET_MACHINE" in
+		*-musl) patch -Np0 <${FILESDIR}/009-no-fts.patch
+	esac
 }
 
 do_configure() {