ubuntu-buildroot/output/build/host-bison-3.8.2/m4/assert.m4

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#serial 7
# Copyright (C) 1998-1999, 2001, 2004, 2008-2021 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])
])