From: Gisle Vanem <gisle.vanem@gmail.com>
Date: Thu, 11 Jul 2019 06:26:57 +0000 (-0400)
Subject: system_win32: fix clang warning
X-Git-Tag: curl-7_65_2~21
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=26da21c84a1a4830c93fa515df4036f880f266f2;p=thirdparty%2Fcurl.git

system_win32: fix clang warning

- Declare variable in header as extern.

Bug: https://github.com/curl/curl/commit/48b9ea4#commitcomment-34084597
---

diff --git a/lib/system_win32.h b/lib/system_win32.h
index ef83a512cc..d2882fce1a 100644
--- a/lib/system_win32.h
+++ b/lib/system_win32.h
@@ -52,7 +52,7 @@ typedef enum {
 typedef unsigned int(WINAPI *IF_NAMETOINDEX_FN)(const char *);
 
 /* This is used instead of if_nametoindex if available on Windows */
-IF_NAMETOINDEX_FN Curl_if_nametoindex;
+extern IF_NAMETOINDEX_FN Curl_if_nametoindex;
 
 /* This is used to verify if we are running on a specific windows version */
 bool Curl_verify_windows_version(const unsigned int majorVersion,