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dnl __BEGIN_LICENSE__
dnl Copyright (C) 2006-2011 United States Government as represented by
dnl the Administrator of the National Aeronautics and Space Administration.
dnl All Rights Reserved.
dnl __END_LICENSE__
dnl Usage: AX_CHECK_FUNCTION_ATTRIBUTE([attr])
AC_DEFUN([AX_CHECK_FUNCTION_ATTRIBUTE],
[
AS_VAR_PUSHDEF([ac_var], ac_cv_func_attribute_[[$1]])dnl
AC_CACHE_CHECK([whether the current compiler supports $1], ac_var,
[
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
int f(int i) __attribute__(($1));
]], [])], [AS_VAR_SET(ac_var,yes)], [AS_VAR_SET(ac_var,no)])
])
AS_IF([test x"$ac_var" = "xyes"],
[AC_DEFINE([COMPILER_HAS_ATTRIBUTE_]AS_TR_CPP($1), [1], [does the compiler support function __attribute__(($1))?])],
[AC_DEFINE([COMPILER_HAS_ATTRIBUTE_]AS_TR_CPP($1), [0], [does the compiler support function __attribute__(($1))?])])
AS_VAR_POPDEF([ac_var])dnl
])
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