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-rw-r--r--src/config.h.in3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/config.h.in b/src/config.h.in
index e63c51d71..569418700 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -82,3 +82,6 @@
/* The size of a `off_t', as computed by sizeof. */
#undef SIZEOF_OFF_T
+
+/* If zlib is available */
+#undef HAVE_LIBZ