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-rw-r--r--include/utils/Compat.h39
1 files changed, 26 insertions, 13 deletions
diff --git a/include/utils/Compat.h b/include/utils/Compat.h
index fb7748e..7d96310 100644
--- a/include/utils/Compat.h
+++ b/include/utils/Compat.h
@@ -19,11 +19,9 @@
#include <unistd.h>
-/* Compatibility definitions for non-Linux (i.e., BSD-based) hosts. */
-#ifndef HAVE_OFF64_T
-#if _FILE_OFFSET_BITS < 64
-#error "_FILE_OFFSET_BITS < 64; large files are not supported on this platform"
-#endif /* _FILE_OFFSET_BITS < 64 */
+#if defined(__APPLE__)
+
+/* Mac OS has always had a 64-bit off_t, so it doesn't have off64_t. */
typedef off_t off64_t;
@@ -31,20 +29,35 @@ static inline off64_t lseek64(int fd, off64_t offset, int whence) {
return lseek(fd, offset, whence);
}
-#ifdef HAVE_PREAD
static inline ssize_t pread64(int fd, void* buf, size_t nbytes, off64_t offset) {
return pread(fd, buf, nbytes, offset);
}
-#endif
-#endif /* !HAVE_OFF64_T */
+#endif /* __APPLE__ */
+
+#if defined(_WIN32)
+#define O_CLOEXEC O_NOINHERIT
+#define O_NOFOLLOW 0
+#define DEFFILEMODE 0666
+#endif /* _WIN32 */
+
+#if defined(_WIN32)
+#define ZD "%ld"
+#define ZD_TYPE long
+#else
+#define ZD "%zd"
+#define ZD_TYPE ssize_t
+#endif
-#if HAVE_PRINTF_ZD
-# define ZD "%zd"
-# define ZD_TYPE ssize_t
+/*
+ * Needed for cases where something should be constexpr if possible, but not
+ * being constexpr is fine if in pre-C++11 code (such as a const static float
+ * member variable).
+ */
+#if __cplusplus >= 201103L
+#define CONSTEXPR constexpr
#else
-# define ZD "%ld"
-# define ZD_TYPE long
+#define CONSTEXPR
#endif
/*