HAVE SETRESGID

!defined(RISCOS) && !defined(GAMEBOY) /* Without autoconf, turn on some things */
 * 1) if !defined(MACH_O_CARBON) && !defined(WINDOWS) && \
 * 1) define SET_UID
 * 1) ifndef HAVE_CONFIG_H
 * 2)  define HAVE_DIRENT_H
 * 3)  define HAVE_SETEGID
 * 4)  if defined(linux)
 * 5)   define HAVE_SETRESGID
 * 6)  endif
 * 7) endif
 * 1) endif

Value
defined

Found in
h-basic.h