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-rw-r--r--src/H5private.h23
1 files changed, 22 insertions, 1 deletions
diff --git a/src/H5private.h b/src/H5private.h
index 88187fd..dd57431 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -112,7 +112,28 @@ typedef struct {
uint64 offset; /*offset within an HDF5 file */
} haddr_t;
-#define NO_ADDR NULL
+/*
+ * We try to use lseek64() and fseek64() if they're available, but they're
+ * not Posix and thus take different arguments on different systems. These
+ * macros attempt to overcome those problems.
+ */
+#ifdef HAVE_LSEEK64
+# ifdef _MIPS_SZLONG
+ /* SGI systems */
+# if (_MIPS_SZLONG == 64)
+# define OFF64_SET(VAR,VAL) VAR=VAL
+# elif defined(_LONGLONG)
+# define OFF64_SET(VAR,VAL) VAR=VAL
+# else
+# define OFF64_SET(VAR,VAL) (VAR.hi32=VAL>>32, \
+ VAR.lo32=(int)(VAL & 0xffffffff), \
+ VAL)
+# endif
+# else
+# warn "HAVE_LSEEK64 has been turned off"
+# undef HAVE_LSEEK64
+# endif
+#endif
/*
* Some compilers have problems declaring auto variables that point