From 50bb2544bb38cef85cae6467763d0fde336f9ee3 Mon Sep 17 00:00:00 2001
From: tenderlove <tenderlove@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 28 Jun 2010 16:26:59 +0000
Subject: * ext/fiddle/fiddle.h: added FFI type detection to avoid bug in ffi  
 header files. Thanks Yugui! [ruby-core:30917]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28465 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/fiddle/fiddle.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

(limited to 'ext/fiddle/fiddle.h')

diff --git a/ext/fiddle/fiddle.h b/ext/fiddle/fiddle.h
index 0c573871dc..a73e560593 100644
--- a/ext/fiddle/fiddle.h
+++ b/ext/fiddle/fiddle.h
@@ -18,6 +18,55 @@
 #include <ffi.h>
 #endif
 
+#undef ffi_type_uchar
+#undef ffi_type_schar
+#undef ffi_type_ushort
+#undef ffi_type_sshort
+#undef ffi_type_uint
+#undef ffi_type_sint
+#undef ffi_type_ulong
+#undef ffi_type_slong
+
+#ifdef CHAR_BIT == 8
+# define ffi_type_uchar ffi_type_uint8
+# define ffi_type_schar ffi_type_sint8
+#else
+# error "CHAR_BIT not supported"
+#endif
+
+# ifdef SIZEOF_SHORT == 2
+#  define ffi_type_ushort ffi_type_uint16
+#  define ffi_type_sshort ffi_type_sint16
+# elif SIZEOF_SHORT == 4
+#  define ffi_type_ushort ffi_type_uint32
+#  define ffi_type_sshort ffi_type_sint32
+# else
+#  error "short size not supported"
+# endif
+
+# if SIZEOF_INT == 2
+#  define ffi_type_uint	ffi_type_uint16
+#  define ffi_type_sint	ffi_type_sint16
+# elif SIZEOF_INT == 4
+#  define ffi_type_uint	ffi_type_uint32
+#  define ffi_type_sint	ffi_type_sint32
+# elif SIZEOF_INT == 8
+#  define ffi_type_uint	ffi_type_uint64
+#  define ffi_type_sint	ffi_type_sint64
+# else
+#  error "int size not supported"
+# endif
+
+# if SIZEOF_LONG == 4
+#  define ffi_type_ulong ffi_type_uint32
+#  define ffi_type_slong ffi_type_sint32
+# elif SIZEOF_LONG == 8
+#  define ffi_type_ulong ffi_type_uint64
+#  define ffi_type_slong ffi_type_sint64
+# else
+#  error "long size not supported"
+# endif
+
 #include <closure.h>
 #include <conversions.h>
 #include <function.h>
-- 
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