acinclude.m4   [plain text]

sinclude(../config/accross.m4)

dnl See if stdbool.h properly defines bool and true/false.
AC_DEFUN(gcc_AC_HEADER_STDBOOL,
[AC_CACHE_CHECK([for working stdbool.h],
  ac_cv_header_stdbool_h,
[AC_TRY_COMPILE([#include <stdbool.h>],
[bool foo = false;],
ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
if test $ac_cv_header_stdbool_h = yes; then
  AC_DEFINE(HAVE_STDBOOL_H, 1,
  [Define if you have a working <stdbool.h> header file.])
fi
])

dnl Check whether _Bool is built-in.
AC_DEFUN(gcc_AC_C__BOOL,
[AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
[AC_TRY_COMPILE(,
[_Bool foo;],
gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
])
if test $gcc_cv_c__bool = yes; then
  AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
fi
])