Subversion Repositories openrisc_me

/* Copyright (C) 2003, 2004, 2005, 2006, 2009 Free Software Foundation.

   Define macros useful in tests for bulitin functions.  */

/* Define HAVE_C99_RUNTIME if the entire C99 runtime is available on

   the target system.  The value of HAVE_C99_RUNTIME should be the

   same as the value of TARGET_C99_FUNCTIONS in the GCC machine

   description.  (Perhaps GCC should predefine a special macro

   indicating whether or not TARGET_C99_FUNCTIONS is set, but it does

   not presently do that.)  */

#if defined(__hppa) && defined(__hpux)

/* PA HP-UX doesn't have the entire C99 runtime.  */

#elif defined(__sgi)

/* Irix6 doesn't have the entire C99 runtime.  */

#elif defined(__AVR__)

/* AVR doesn't have the entire C99 runtime.  */

#elif defined(__FreeBSD__) && (__FreeBSD__ < 9)

/* FreeBSD up to version 8 lacks support for cexp and friends.  */

#elif defined(__netware__)

/* NetWare doesn't have the entire C99 runtime.  */

#elif defined(__vxworks)

/* VxWorks doesn't have a full C99 time.  (cabs is missing, for example.)  */

#elif defined(_WIN32) && !defined(__CYGWIN__)

/* Windows doesn't have the entire C99 runtime.  */

#elif (defined(__APPLE__) && defined(__ppc__) \

       && ! defined (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__))

/* MacOS versions before 10.3 don't have many C99 functions.

   But, if you're including this file, you probably want to test the

   newer behaviour, so: */

#error forgot to set -mmacosx-version-min.

#elif (defined(__APPLE__) && defined(__ppc__) \

       && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1030)

/* MacOS versions before 10.3 don't have many C99 functions.  */

#else

/* Newlib has the "f" variants of the math functions, but not the "l"

   variants.  TARGET_C99_FUNCTIONS is only defined if all C99

   functions are present.  Therefore, on systems using newlib, tests

   of builtins will fail the "l" variants, and we should therefore not

   define HAVE_C99_RUNTIME.  Including <sys/types.h> gives us a way of

   seeing if _NEWLIB_VERSION is defined.  Including <math.h> would work

   too, but the GLIBC math inlines cause us to generate inferior code,

   which causes the test to fail, so it is not safe.  Including <limits.h>

   also fails because the include search paths are ordered such that GCC's

   version will be found before the newlib version.  Similarly, uClibc

   lacks the C99 functions.  */

#include <sys/types.h>

#if defined(_NEWLIB_VERSION) || defined(__UCLIBC__)

#elif defined(__sun) && __STDC_VERSION__ - 0 < 199901L

/* If you're including this file, you probably want to test the newer

   behaviour, so ensure the right flags were used for each test: */

#error forgot to set -std=c99.

#elif defined(__sun) && ! defined (_STDC_C99)

/* Solaris up to 9 doesn't have the entire C99 runtime.

   Solaris 10 defines _STDC_C99 if __STDC_VERSION__ is >= 199901L.

   This macro is defined in <sys/feature_tests.h> which is included by

   various system headers, in this case <sys/types.h> above.  */

#else

#define HAVE_C99_RUNTIME

#endif

#endif