From 4a2ff2b7f27e569032f6c5881e17cb053b32ccc7 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 26 Mar 2015 14:01:03 -0400
Subject: curl: Never consider using Windows APIs on Cygwin

Our Windows API header checks are conditioned on if(NOT UNIX) but
libarchive checks HAVE_WINDOWS_H anyway so the result leaks into
the cache and influenes the curl build.  Set the check results to
false explicitly for curl when not on Windows to tolerate this.

Reported-by: Vyacheslav Karpukhin <Vyacheslav.Karpukhin@jetbrains.com>
---
 Utilities/cmcurl/CMakeLists.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Utilities/cmcurl/CMakeLists.txt b/Utilities/cmcurl/CMakeLists.txt
index 08bdff5..32e4561 100644
--- a/Utilities/cmcurl/CMakeLists.txt
+++ b/Utilities/cmcurl/CMakeLists.txt
@@ -524,12 +524,18 @@ check_include_file("features.h"       HAVE_FEATURES_H)
 if(NOT UNIX)
   check_include_file_concat("ws2tcpip.h"     HAVE_WS2TCPIP_H)
   check_include_file_concat("winsock2.h"     HAVE_WINSOCK2_H)
-endif(NOT UNIX)
+else()
+  set(HAVE_WS2TCPIP_H 0)
+  set(HAVE_WINSOCK2_H 0)
+endif()
 check_include_file_concat("stdio.h"          HAVE_STDIO_H)
 if(NOT UNIX)
   check_include_file_concat("windows.h"      HAVE_WINDOWS_H)
   check_include_file_concat("winsock.h"      HAVE_WINSOCK_H)
-endif(NOT UNIX)
+else()
+  set(HAVE_WINDOWS_H 0)
+  set(HAVE_WINSOCK_H 0)
+endif()
 
 check_include_file_concat("inttypes.h"       HAVE_INTTYPES_H)
 check_include_file_concat("sys/filio.h"      HAVE_SYS_FILIO_H)
-- 
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