chroot-coreutils: fix cp(1) -a with musl and probably others.

srcpkgs/chroot-coreutils/template

@@ -1,7 +1,7 @@
 # Template file for 'chroot-coreutils'
 pkgname=chroot-coreutils
 version=8.22
-revision=1
+revision=2
 wrksrc="${pkgname/chroot-}-${version}"
 bootstrap=yes
 provides="coreutils-${version}_${revision}"
@@ -18,6 +18,10 @@ license="GPL-3"
 distfiles="http://ftp.gnu.org/gnu/coreutils/coreutils-$version.tar.xz"
 checksum=5b3e94998152c017e6c75d56b9b994188eb71bf46d4038a642cb9141f6ff1212
 
+case "$XBPS_TARGET_MACHINE" in
+	*-musl) CFLAGS+=" -DSLOW_BUT_NO_HACKS";;
+esac
+
 post_install() {
 	rm -rf ${DESTDIR}/usr/lib
 	rm -rf ${DESTDIR}/usr/share