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Also define off_t in stdio.h for UNIX98

Similar to my previous fix for XOPEN2K
<>, now that
bugs in the conformtest expectations for stdio.h for UNIX98 have been
corrected, that case too fails because fseeko and ftello are now
correctly expected, but off_t is not defined.  As in that fix, it
seems appropriate to define off_t in stdio.h for this standard as
well, and this patch does so.

Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).

2016-04-28  Joseph Myers  <>

	* libio/stdio.h (off_t): Also define if [__USE_UNIX98].
	[__USE_LARGEFILE64] (off64_t): Likewise.
	* conform/Makefile (test-xfail-UNIX98/stdio.h/conform): Remove

diff --git a/conform/Makefile b/conform/Makefile
index 26264fc..7665f77 100644
--- a/conform/Makefile
+++ b/conform/Makefile
@@ -202,7 +202,6 @@ test-xfail-UNIX98/langinfo.h/conform = yes
 test-xfail-UNIX98/netdb.h/conform = yes
 test-xfail-UNIX98/netinet/in.h/conform = yes
 test-xfail-UNIX98/signal.h/conform = yes
-test-xfail-UNIX98/stdio.h/conform = yes
 test-xfail-UNIX98/stdlib.h/conform = yes
 test-xfail-UNIX98/sys/time.h/conform = yes
 test-xfail-UNIX98/sys/wait.h/conform = yes
diff --git a/libio/stdio.h b/libio/stdio.h
index d7dbfad..712b994 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -84,7 +84,7 @@ typedef _G_va_list va_list;
 # endif
-#ifdef __USE_XOPEN2K
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
 # ifndef __off_t_defined
 # ifndef __USE_FILE_OFFSET64
 typedef __off_t off_t;

Joseph S. Myers

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