#include #define T(t) (t*)0; static void f() { T(size_t) T(locale_t) #ifdef _XOPEN_SOURCE {int(*p)(int) = ffs;} #endif {int(*p)(const char*,const char*) = strcasecmp;} {int(*p)(const char*,const char*,locale_t) = strcasecmp_l;} {int(*p)(const char*,const char*,size_t) = strncasecmp;} {int(*p)(const char*,const char*,size_t,locale_t) = strncasecmp_l;} }