diff -bur otcl-8.3.5/win/configure.in tcl-8.3.5/win/configure.in
--- otcl-8.3.5/win/configure.in	2002-10-16 11:30:20.000000000 +1000
+++ tcl-8.3.5/win/configure.in	2002-10-17 19:36:18.000000000 +1000
@@ -30,6 +30,12 @@
 # be fully tested by built-in autoconf tools.
 #--------------------------------------------------------------------
  
+# If the user did not set CFLAGS, set it now to keep
+# the AC_PROG_CC macro from adding "-g -O2".
+if test "${CFLAGS+set}" != "set" ; then
+    CFLAGS=""
+fi
+
 SC_ENABLE_GCC
 #AC_PROG_CC
 
