diff --git a/tools/build/options/WITH_GDB b/tools/build/options/WITH_GDB
new file mode 100644
index 00000000000..994942e8ff9
--- /dev/null
+++ b/tools/build/options/WITH_GDB
@@ -0,0 +1,3 @@
+.\" $FreeBSD$
+Set to build
+.Xr gdb 1 .