--- unix/configure.orig	2005-12-14 11:29:39 UTC
+++ unix/configure
@@ -1487,7 +1487,7 @@ if test "$TCL_SHARED_BUILD" = 0; then
 echo "$as_me: error: Tcl and Tk must be configured with the --enable-shared flag" >&2;}
    { (exit 1); exit 1; }; }
 fi
-CFLAGS=$TCL_SHLIB_CFLAGS
+CFLAGS="$CFLAGS $TCL_SHLIB_CFLAGS"
 LD_SEARCH_FLAGS=$TCL_LD_SEARCH_FLAGS
 SHLIB_LD=$TCL_SHLIB_LD
 SHLIB_SUFFIX=$TCL_SHLIB_SUFFIX