diff --git a/src/kernel/libroot/posix/math/math_globals.c b/src/kernel/libroot/posix/math/math_globals.c
new file mode 100644
index 0000000000..ee274f3122
--- /dev/null
+++ b/src/kernel/libroot/posix/math/math_globals.c
@@ -0,0 +1,11 @@
+/*
+ *  Global variable(s) used in the math library
+ */
+
+
+// this declaration is just a guess...
+// it "seems" to be what is required, but I would need to run some tests
+// to see if code that links to this variable actually works as expected.
+// -- Daniel Reinhold, 26 Oct 2002
+
+char __infinity[sizeof(double)];