diff --git a/abuild.in b/abuild.in
index 17ff611..ea0ad02 100755
--- a/abuild.in
+++ b/abuild.in
@@ -1350,6 +1350,11 @@ check_arch() {
 	list_has $CARCH $arch || [ "$arch" = "noarch" ] || [ "$arch" = "all" ]
 }
 
+# return true if libc is not masked in options
+check_libc() {
+	! list_has "!libc_$CLIBC" $options
+}
+
 # check if package is up to date
 apk_up2date() {
 	getpkgver || return 1
@@ -1397,6 +1402,7 @@ abuildindex_up2date() {
 
 up2date() {
 	check_arch || return 0
+	check_libc || return 0
 	apk_up2date && abuildindex_up2date
 }
 
@@ -1705,6 +1711,7 @@ uninstalldeps (){
 all() {
 	if ! [ -n "$force" ]; then
 		check_arch || return 0
+		check_libc || return 0
 	fi
 	if up2date && [ -z "$force" ]; then
 		msg "Package is up to date"