gcc/config/gnu.h

   1 /* Configuration common to all targets running the GNU system.  */
   2
   3 /* Macro to produce CPP_PREDEFINES for GNU on a given machine.  */
   4 #define GNU_CPP_PREDEFINES(machine) \
   5 "-D" machine " -Acpu(" machine ") -Amachine(" machine ") \
   6 -Dunix -Asystem(unix) \
   7 -DMACH -Asystem(mach) \
   8 -D__GNU__ -Asystem(gnu)"
   9
  10 /* Provide GCC options for standard feature-test macros.  */
  11 #undef CPP_SPEC
  12 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{bsd:-D_BSD_SOURCE}"
  13
  14 /* Default C library spec.  Use -lbsd-compat for gcc -bsd.  */
  15 #undef LIB_SPEC
  16 #define LIB_SPEC "%{bsd:-lbsd-compat} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
  17
  18 /* Standard include directory.  In GNU, "/usr" is a four-letter word.  */
  19 #undef STANDARD_INCLUDE_DIR
  20 #define STANDARD_INCLUDE_DIR "/include"
  21
  22
  23 /* We have atexit.  */
  24 #define HAVE_ATEXIT
  25
  26 /* Implicit library calls should use memcpy, not bcopy, etc.  */
  27 #define TARGET_MEM_FUNCTIONS
  28
  29 /* The system headers under GNU are C++-aware.  */
  30 #define NO_IMPLICIT_EXTERN_C