[PATCH 2/2] msvcrt: Fix strncmp return value.

[Shaun Ren]

From: Shaun Ren

Some programs, such as Final Fantasy IV (3D remake), expect strncmp
to return exactly +/-1 when the strings are not equal.

Signed-off-by: Shaun Ren 
---
 dlls/msvcrt/string.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dlls/msvcrt/string.c b/dlls/msvcrt/string.c
index dd392abd203..d1bdf73d209 100644
--- a/dlls/msvcrt/string.c
+++ b/dlls/msvcrt/string.c
@@ -3289,7 +3289,14 @@ int __cdecl strncmp(const char *str1, const char *str2, size_t len)
 {
     if (!len) return 0;
     while (--len && *str1 && *str1 == *str2) { str1++; str2++; }
+
+#if defined(_WIN64) || defined(_UCRT) || _MSVCR_VER == 70 || _MSVCR_VER == 71 || _MSVCR_VER >= 110
+    if ((unsigned char)*str1 > (unsigned char)*str2) return 1;
+    if ((unsigned char)*str1 < (unsigned char)*str2) return -1;
+    return 0;
+#else
     return (unsigned char)*str1 - (unsigned char)*str2;
+#endif
 }

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