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-rw-r--r--lib/curl_setup_once.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/curl_setup_once.h b/lib/curl_setup_once.h
index 6f3240ac9..69d6d4790 100644
--- a/lib/curl_setup_once.h
+++ b/lib/curl_setup_once.h
@@ -440,7 +440,7 @@ typedef int sig_atomic_t;
* (or equivalent) on this platform to hide platform details to code using it.
*/
-#ifdef WIN32
+#if defined(WIN32) && !defined(USE_LWIPSOCK)
#define ERRNO ((int)GetLastError())
#define SET_ERRNO(x) (SetLastError((DWORD)(x)))
#else