[PATCH 1/2] Cygwin: Fix build with w32api 10.0.0

[Jon Turney <jon.turney@dronecode.org.uk>]

> ../../../../src/winsup/cygwin/sec_auth.cc:1240:16: error: redefinition of ‘struct _MSV1_0_S4U_LOGON’
>  1240 | typedef struct _MSV1_0_S4U_LOGON
>       |                ^~~~~~~~~~~~~~~~~
> In file included from ../../../../src/winsup/cygwin/ntsecapi.h:10,
>                  from ../../../../src/winsup/cygwin/sec_auth.cc:13:
> /usr/include/w32api/ntsecapi.h:1425:18: note: previous definition of ‘struct _MSV1_0_S4U_LOGON’
>  1425 |   typedef struct _MSV1_0_S4U_LOGON {
>       |                  ^~~~~~~~~~~~~~~~~
> ../../../../src/winsup/cygwin/sec_auth.cc:1246:3: error: conflicting declaration ‘typedef int MSV1_0_S4U_LOGON’
>  1246 | } MSV1_0_S4U_LOGON, *PMSV1_0_S4U_LOGON;
>       |   ^~~~~~~~~~~~~~~~
> In file included from ../../../../src/winsup/cygwin/ntsecapi.h:10,
>                  from ../../../../src/winsup/cygwin/sec_auth.cc:13:
> /usr/include/w32api/ntsecapi.h:1430:5: note: previous declaration as ‘typedef struct _MSV1_0_S4U_LOGON MSV1_0_S4U_LOGON’
>  1430 |   } MSV1_0_S4U_LOGON, *PMSV1_0_S4U_LOGON;
>       |     ^~~~~~~~~~~~~~~~
> ../../../../src/winsup/cygwin/sec_auth.cc:1246:22: error: conflicting declaration ‘typedef int* PMSV1_0_S4U_LOGON’
>  1246 | } MSV1_0_S4U_LOGON, *PMSV1_0_S4U_LOGON;
>       |                      ^~~~~~~~~~~~~~~~~
> In file included from ../../../../src/winsup/cygwin/ntsecapi.h:10,
>                  from ../../../../src/winsup/cygwin/sec_auth.cc:13:
> /usr/include/w32api/ntsecapi.h:1430:24: note: previous declaration as ‘typedef struct _MSV1_0_S4U_LOGON* PMSV1_0_S4U_LOGON’
>  1430 |   } MSV1_0_S4U_LOGON, *PMSV1_0_S4U_LOGON;
---
 winsup/cygwin/sec_auth.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/sec_auth.cc b/winsup/cygwin/sec_auth.cc
index 121d55e05..0e5aaeb0b 100644
--- a/winsup/cygwin/sec_auth.cc
+++ b/winsup/cygwin/sec_auth.cc
@@ -1232,8 +1232,9 @@ out:
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-/* In Mingw-w64, MsV1_0S4ULogon and MSV1_0_S4U_LOGON are only defined
-   in ddk/ntifs.h.  We can't include this. */
+/* In w32api prior to 10.0.0, MsV1_0S4ULogon and MSV1_0_S4U_LOGON are only
+   defined in ddk/ntifs.h, which we can't include. */
+#if (__MINGW64_VERSION_MAJOR < 10)
 
 #define MsV1_0S4ULogon ((MSV1_0_LOGON_SUBMIT_TYPE) 12)
 
@@ -1248,6 +1249,8 @@ typedef struct _MSV1_0_S4U_LOGON
 /* Missing in Mingw-w64 */
 #define KERB_S4U_LOGON_FLAG_IDENTITY 0x08
 
+#endif
+
 /* If logon is true we need an impersonation token.  Otherwise we just
    need an identification token, e. g. to fetch the group list. */
 HANDLE
-- 
2.35.1