/* Test if _POSIX_PIPE_BUF has the correct value. */ #include "suite.h" int main(void) { #ifdef _POSIX_PIPE_BUF if ( _POSIX_PIPE_BUF != 512 ) errx(1, "_POSIX_PIPE_BUF is not 512"); return 0; #else errx(1, "undeclared"); #endif }