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--- a/src/common/autoconfig-win.h
+++ b/src/common/autoconfig-win.h
@@ -31,9 +31,6 @@
 
 /* Define to 1 if you have the `dl' library (-ldl). */
 #define HAVE_LIBDL 1
-
-/* Define to 1 if you have the `pthread' library (-lpthread). */
-#define HAVE_LIBPTHREAD 1
 
 /* Define to 1 if you have the `z' library (-lz). */
 #define HAVE_LIBZ 1