canadian build: fix mingw32

Makes libgcc compilation fail because of broken "sys/types.h" include (missing __caddr_t typedef).
This issue is around for a while and apply on both eglibc and glibc.

Tested on glib-2.23 with target=arm, build=linux, host=mingw32.

Signed-off-by: Matthieu Crapet <mcrapet@gmail.com>

patches/glibc/2.23/002-glibc-sys_types.h.patch

@@ -0,0 +1,25 @@
+(e)glibc: add caddr_t protection (include/sys/types.h)
+
+Workaround for mingw32 related builds.
+Troubles happen on mingw32 host/target.
+
+Related thread:
+http://sourceware.org/ml/crossgcc/2011-12/msg00073.html
+
+Signed-off-by: Matthieu Crapet <mcrapet@gmail.com>
+
+diff --git a/libc/posix/sys/types.h b/libc/posix/sys/types.h
+index a7e9084..da97bc8 100644
+--- a/posix/sys/types.h
++++ b/posix/sys/types.h
+@@ -114,7 +114,10 @@ typedef __ssize_t ssize_t;
+ #ifdef	__USE_BSD
+ # ifndef __daddr_t_defined
+ typedef __daddr_t daddr_t;
++#  if !defined(caddr_t) && !defined(__caddr_t_defined)
+ typedef __caddr_t caddr_t;
++#  define __caddr_t_defined
++#  endif
+ #  define __daddr_t_defined
+ # endif
+ #endif