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-rw-r--r--ext/tcltklib/tcltklib.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/ext/tcltklib/tcltklib.c b/ext/tcltklib/tcltklib.c
index 2792e53388..0217ab8feb 100644
--- a/ext/tcltklib/tcltklib.c
+++ b/ext/tcltklib/tcltklib.c
@@ -97,7 +97,8 @@ static VALUE ip_invoke _((int, VALUE*, VALUE));
/* from tkAppInit.c */
-#if !defined __MINGW32__
+#if TCL_MAJOR_VERSION < 8 || (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 4)
+# if !defined __MINGW32__ && !defined __BORLANDC__
/*
* The following variable is a special hack that is needed in order for
* Sun shared libraries to be used for Tcl.
@@ -105,6 +106,7 @@ static VALUE ip_invoke _((int, VALUE*, VALUE));
extern int matherr();
int *tclDummyMathPtr = (int *) matherr;
+# endif
#endif
/*---- module TclTkLib ----*/