diff options
Diffstat (limited to 'gnulib/m4/vararrays.m4')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/m4/vararrays.m4 | 25 |
2 files changed, 25 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/vararrays.m4 b/gnulib/m4/vararrays.m4 new file mode 100644 index 0000000..b06b646 --- /dev/null +++ b/gnulib/m4/vararrays.m4 @@ -0,0 +1,25 @@ +# Check for variable-length arrays. + +# serial 4 + +# From Paul Eggert + +# Copyright (C) 2001, 2009-2011 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +AC_DEFUN([AC_C_VARARRAYS], +[ + AC_CACHE_CHECK([for variable-length arrays], + ac_cv_c_vararrays, + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [], + [[static int x; char a[++x]; a[sizeof a - 1] = 0; return a[0];]])], + ac_cv_c_vararrays=yes, + ac_cv_c_vararrays=no)]) + if test $ac_cv_c_vararrays = yes; then + AC_DEFINE([HAVE_C_VARARRAYS], [1], + [Define to 1 if C supports variable-length arrays.]) + fi +]) |