gcc/config/gnu.h

   1 /* Configuration common to all targets running the GNU system.  */
   2
   3 /* Provide GCC options for standard feature-test macros.  */
   4 #undef CPP_SPEC
   5 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{bsd:-D_BSD_SOURCE}"
   6
   7 /* Default C library spec.  Use -lbsd-compat for gcc -bsd.  */
   8 #undef LIB_SPEC
   9 #define LIB_SPEC "%{bsd:-lbsd-compat} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
  10
  11 /* Standard include directory.  In GNU, "/usr" is a four-letter word.  */
  12 #undef STANDARD_INCLUDE_DIR
  13 #define STANDARD_INCLUDE_DIR "/include"
  14
  15 /* The system headers under GNU are C++-aware.  */
  16 #define NO_IMPLICIT_EXTERN_C
  17
  18 #define HURD_TARGET_OS_CPP_BUILTINS()           \
  19     do {                                        \
  20         builtin_define ("__gnu_hurd__");        \
  21         builtin_define ("__GNU__");             \
  22         builtin_define_std ("unix");            \
  23         builtin_define_std ("MACH");            \
  24         builtin_assert ("system=gnu");          \
  25         builtin_assert ("system=mach");         \
  26         builtin_assert ("system=unix");         \
  27         builtin_assert ("system=posix");        \
  28     } while (0)