Various FreeBSD source and header files need a typedef __size_t via
<sys/_types.h>. Unfortunately the GCC provided <stddef.h> uses
#if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
|| defined(__DragonFly__) \
|| defined(__FreeBSD_kernel__)
/* __size_t is a typedef on FreeBSD 5, must not trash it. */
#elif defined (__VMS__)
/* __size_t is also a typedef on VMS. */
#else
#define __size_t
#endif
and therefore defines __size_t on Newlib targets which would trash a
__size_t typedef. Include <stddef.h> before <sys/_types.h> in
<sys/types.h> and undefine __size_t in <sys/_types.h> as a workaround.
Signed-off-by: Sebastian Huber <sebastian.hu...@embedded-brains.de>
---
newlib/libc/include/sys/_types.h | 15 +++++++++++++++
newlib/libc/include/sys/types.h | 4 ++--
2 files changed, 17 insertions(+), 2 deletions(-)
diff --git a/newlib/libc/include/sys/_types.h b/newlib/libc/include/sys/_types.h
index 6a2c94d..06ddd83 100644
--- a/newlib/libc/include/sys/_types.h
+++ b/newlib/libc/include/sys/_types.h
@@ -119,6 +119,21 @@ typedef _off64_t _fpos64_t;
#endif
#endif
+/* Defined by GCC provided <stddef.h> */
+#undef __size_t
+
+#ifndef __machine_size_t_defined
+#ifdef __SIZE_TYPE__
+typedef __SIZE_TYPE__ __size_t;
+#else
+#if defined(__INT_MAX__) && __INT_MAX__ == 2147483647
+typedef int __size_t;
+#else
+typedef long __size_t;
+#endif
+#endif
+#endif
+
#ifndef __machine_ssize_t_defined
#ifdef __SIZE_TYPE__
/* If __SIZE_TYPE__ is defined (gcc) we define ssize_t based on size_t.
diff --git a/newlib/libc/include/sys/types.h b/newlib/libc/include/sys/types.h
index 57b74ef..31f765e 100644
--- a/newlib/libc/include/sys/types.h
+++ b/newlib/libc/include/sys/types.h
@@ -56,11 +56,11 @@ typedef quad_t * qaddr_t;
#ifndef __need_inttypes
#define _SYS_TYPES_H
+/* <stddef.h> must be before <sys/_types.h> for __size_t considerations */
+#include <stddef.h>
#include <sys/_types.h>
#include <sys/_stdint.h>
-# include <stddef.h>
-
#if __BSD_VISIBLE
#include <machine/endian.h>
#include <sys/select.h>
--
1.8.4.5
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