zzuf: fix musl

srcpkgs/zzuf/template

@@ -11,6 +11,14 @@ license="GPL-3"
 distfiles="http://caca.zoy.org/files/zzuf/${pkgname}-${version}.tar.gz"
 checksum=0842c548522028c3e0d9c9cf7d09f6320b661f33824bb6df19ca209851bdf627
 
+post_configure() {
+	case "$XBPS_TARGET_MACHINE"  in
+	*-musl)	# Disable the *64 variants of libc functions because
+		# they are just macros calling the regular functions
+		sed -i config.h -e "/#define HAVE_.*64/s;#define \(HAVE_.*\);/* #undef \1 */;" ;;
+	esac
+}
+
 post_install() {
 	# Rename conflicting files
 	mv ${DESTDIR}/usr/share/man/man1/{zzcat,zzuf-cat}.1