From 79f56d82f805b170fa2be8c04b682117be56483f Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Tue, 23 Feb 2016 11:58:02 +0000 Subject: [PATCH] osdep.h: Define macros for the benefit of C++ before C++11 For C++ before C++11, requires definition of the macros __STDC_CONSTANT_MACROS, __STDC_LIMIT_MACROS and __STDC_FORMAT_MACROS in order to enable definition of various macros by the header file. Define these in osdep.h, so that we get the right header file definitions whether osdep.h is being used by plain C, C++11 or older C++. In particular libvixl's header files depend on this and won't compile if osdep.h is included before them otherwise. Signed-off-by: Peter Maydell Reviewed-by: Eric Blake --- include/qemu/osdep.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 431cf71364..7c3a07388c 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -28,6 +28,20 @@ #include "config-host.h" #include "qemu/compiler.h" +/* Older versions of C++ don't get definitions of various macros from + * stdlib.h unless we define these macros before first inclusion of + * that system header. + */ +#ifndef __STDC_CONSTANT_MACROS +#define __STDC_CONSTANT_MACROS +#endif +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS +#endif +#ifndef __STDC_FORMAT_MACROS +#define __STDC_FORMAT_MACROS +#endif + /* The following block of code temporarily renames the daemon() function so the * compiler does not see the warning associated with it in stdlib.h on OSX */