diff --git a/sys-devel/flex/flex-2.6.4.ebuild b/sys-devel/flex/flex-2.6.4.ebuild
index 6ab2225..060a6c5 100644
--- a/sys-devel/flex/flex-2.6.4.ebuild
+++ b/sys-devel/flex/flex-2.6.4.ebuild
@@ -47,6 +47,10 @@ multilib_src_configure() {
 		--disable-shared \
 		$(use_enable nls) \
 		--docdir='$(datarootdir)/doc/'${PF}
+	# out-of-source build fails with --disable-dependency-tracking
+	# when target platform requires malloc/realloc replacement
+	# https://github.com/westes/flex/issues/244
+	mkdir -p ./lib || die
 }
 
 multilib_src_compile() {