#serial 7

# Copyright (C) 1998-1999, 2001, 2004, 2008-2017 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.

dnl based on code from Eleftherios Gkioulekas

dnl Autoconf 2.60 provides AC_HEADER_ASSERT for the same purpose, but

dnl it has broken semantics for --enable-assert until 2.64.

AC_DEFUN([gl_ASSERT],

[

  AC_MSG_CHECKING([whether to enable assertions])

  AC_ARG_ENABLE([assert],

    [AS_HELP_STRING([--disable-assert], [turn off assertions])],

    [AS_IF([test "x$enableval" = xno],

      [AC_DEFINE([NDEBUG], [1],

        [Define to 1 if assertions should be disabled.])],

      [test "x$enableval" != xyes],

      [AC_MSG_WARN([invalid argument supplied to --enable-assert])

      enable_assert=yes])],

    [enable_assert=yes])

  AC_MSG_RESULT([$enable_assert])

])