buildroot/package/tcl/tcl-8.4.19-strtod.patch

--- tcl8.4.9/compat/strtod.c	2002-02-25 16:26:12.000000000 +0200
+++ tcl8.4.9/compat/strtod.c	2005-05-30 08:55:18.000000000 +0300
@@ -24,6 +24,8 @@
 #define NULL 0
 #endif
 
+#undef strtod
+
 static int maxExponent = 511;	/* Largest possible base 10 exponent.  Any
 				 * exponent larger than this will already
 				 * produce underflow or overflow, so there's