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-rw-r--r--unix/tclConfig.h.in3
1 files changed, 3 insertions, 0 deletions
diff --git a/unix/tclConfig.h.in b/unix/tclConfig.h.in
index 341e47f..c665bda 100644
--- a/unix/tclConfig.h.in
+++ b/unix/tclConfig.h.in
@@ -244,6 +244,9 @@
/* Is weak import available? */
#undef HAVE_WEAK_IMPORT
+/* Is there an installed zlib? */
+#undef HAVE_ZLIB
+
/* Is this a Mac I see before me? */
#undef MAC_OSX_TCL