[CF] OpenBSD doesn't have the xlocale header.

OpenBSD is one of the platforms that doesn't have xlocale.h, so ensure
that the header is not used and the relevant macros are exposed.

While we are here, change the sense of the conditionals in CFInternal.h
to be a little more clear and consistent.

Author: 3405691582

CoreFoundation/Base.subproj/CFInternal.h

@@ -97,9 +97,9 @@ CF_EXTERN_C_BEGIN
 
 #if TARGET_OS_MAC || TARGET_OS_LINUX || TARGET_OS_BSD
 
-#if !TARGET_OS_CYGWIN && !defined(__linux__)
+#if TARGET_OS_MAC || (TARGET_OS_BSD && !defined(__OpenBSD__)) || TARGET_OS_ANDROID
 #include <xlocale.h>
-#endif // !TARGET_OS_CYGWIN && !defined(__linux__)
+#endif // TARGET_OS_MAC || (TARGET_OS_BSD && !defined(__OpenBSD__)) || TARGET_OS_ANDROID
 
 #include <sys/time.h>
 #include <signal.h>

CoreFoundation/Base.subproj/CoreFoundation_Prefix.h

@@ -180,13 +180,13 @@ bool OSAtomicCompareAndSwap32Barrier( int32_t oldValue, int32_t newValue, volati
 void OSMemoryBarrier();
 #endif // TARGET_OS_LINUX || TARGET_OS_BSD
 
-#if TARGET_OS_LINUX || TARGET_OS_WIN32
+#if TARGET_OS_LINUX || TARGET_OS_WIN32 || defined(__OpenBSD__)
 #define strtod_l(a,b,locale) strtod(a,b)
 #define strtoul_l(a,b,c,locale) strtoul(a,b,c)
 #define strtol_l(a,b,c,locale) strtol(a,b,c)
 
 #define fprintf_l(a,locale,b,...) fprintf(a, b, __VA_ARGS__)
-#endif // TARGET_OS_LINUX || TARGET_OS_WIN32
+#endif // TARGET_OS_LINUX || TARGET_OS_WIN32 || defined(__OpenBSD__)
 
 #if TARGET_OS_LINUX
 
@@ -236,6 +236,10 @@ CF_INLINE uint64_t mach_absolute_time() {
 #define CF_PRIVATE extern __attribute__((visibility("hidden")))
 #define __strong
 #define __weak
+
+#if defined(__OpenBSD__)
+#define strtoll_l(a,b,c,locale) strtoll(a,b,c)
+#endif
 #endif
 
 #if TARGET_OS_LINUX || TARGET_OS_BSD