cf/vararray.m4

   1 dnl
   2 dnl $Id$
   3 dnl
   4 dnl Test for variable size arrays.
   5 dnl
   6
   7 AC_DEFUN([rk_C_VARARRAY], [
   8         AC_CACHE_CHECK([if the compiler supports variable-length arrays],[rk_cv_c_vararray],[
   9         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[int x = 0; { int y[x]; }]])],
  10                 [rk_cv_c_vararray=yes],
  11                 [rk_cv_c_vararray=no])])
  12         if test "$rk_cv_c_vararray" = yes; then
  13                 AC_DEFINE([HAVE_VARIABLE_LENGTH_ARRAY], [1],
  14                         [Define if your compiler supports variable-length arrays.])
  15         fi
  16 ])