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-rw-r--r--src/H5FDgass.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/H5FDgass.c b/src/H5FDgass.c
index 3f139b1..aeaf60e 100644
--- a/src/H5FDgass.c
+++ b/src/H5FDgass.c
@@ -54,6 +54,36 @@ typedef struct H5FD_gass_t {
} H5FD_gass_t;
+/*
+ * This driver supports systems that have the lseek64() function by defining
+ * some macros here so we don't have to have conditional compilations later
+ * throughout the code.
+ *
+ * file_offset_t: The datatype for file offsets, the second argument of
+ * the lseek() or lseek64() call.
+ *
+ * file_seek: The function which adjusts the current file position,
+ * either lseek() or lseek64().
+ */
+/* adding for windows NT file system support. */
+/* pvn: added __MWERKS__ support. */
+
+#ifdef H5_HAVE_LSEEK64
+# define file_offset_t off64_t
+# define file_seek lseek64
+#elif defined (WIN32)
+# ifdef __MWERKS__
+# define file_offset_t off_t
+# define file_seek lseek
+# else /*MSVC*/
+# define file_offset_t __int64
+# define file_seek _lseeki64
+# endif
+#else
+# define file_offset_t off_t
+# define file_seek lseek
+#endif
+
/*