diff --git a/external/subpack/net/apinger/patches/020-gcc10.patch b/external/subpack/net/apinger/patches/020-gcc10.patch
new file mode 100644
index 0000000..3272804
--- /dev/null
+++ b/external/subpack/net/apinger/patches/020-gcc10.patch
@@ -0,0 +1,11 @@
+--- a/src/apinger.h
++++ b/src/apinger.h
+@@ -111,7 +111,7 @@ struct piped_info {
+ };
+ #endif
+ 
+-struct target *targets;
++extern struct target *targets;
+ 
+ extern int foreground;
+ extern char *config_file;