1 /* 2 * Copyright Andrey Semashev 2017. 3 * Distributed under the Boost Software License, Version 1.0. 4 * (See accompanying file LICENSE_1_0.txt or copy at 5 * http://www.boost.org/LICENSE_1_0.txt) 6 */ 7 8 // Test if we can include system headers with -D_XOPEN_SOURCE=600 9 #undef _XOPEN_SOURCE 10 #define _XOPEN_SOURCE 600 11 12 #include <unistd.h> 13 main(int,char * [])14int main(int, char*[]) 15 { 16 return 0; 17 } 18