system_win32: fix clang warning

- Declare variable in header as extern.

Bug: https://github.com/curl/curl/commit/48b9ea4#commitcomment-34084597
This commit is contained in:
Gisle Vanem 2019-07-11 02:26:57 -04:00 committed by Jay Satiro
parent 11d7fe118d
commit 26da21c84a

View File

@ -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,