1 #ifndef __XEN_TOOLS_LIBS__
2 #define __XEN_TOOLS_LIBS__
3 
4 #ifndef BUILD_BUG_ON
5 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
6 #define BUILD_BUG_ON(p) ({ _Static_assert(!(p), "!(" #p ")"); })
7 #else
8 #define BUILD_BUG_ON(p) ((void)sizeof(char[1 - 2 * !!(p)]))
9 #endif
10 #endif
11 
12 #endif	/* __XEN_TOOLS_LIBS__ */
13