--- a/higan/GNUmakefile	2019-12-21 21:44:28.000000000 +0100
+++ b/higan/GNUmakefile	2019-12-21 21:44:28.000000000 +0100
@@ -18,7 +18,7 @@
 else ifeq ($(platform),macos)
 else ifneq ($(filter $(platform),linux bsd),)
   options += -Wl,-export-dynamic
-  options += -lX11 -lXext
+  options += -lX11 -lXext -ldl
 else
   $(error "unsupported platform")
 endif
