1 #serial 7 2 3 # Copyright (C) 1998-1999, 2001, 2004, 2008-2012 Free Software Foundation, Inc. 4 # This file is free software; the Free Software Foundation 5 # gives unlimited permission to copy and/or distribute it, 6 # with or without modifications, as long as this notice is preserved. 7 8 dnl based on code from Eleftherios Gkioulekas 9 dnl Autoconf 2.60 provides AC_HEADER_ASSERT for the same purpose, but 10 dnl it has broken semantics for --enable-assert until 2.64. 11 AC_DEFUN([gl_ASSERT], 12 [ 13 AC_MSG_CHECKING([whether to enable assertions]) 14 AC_ARG_ENABLE([assert], 15 [AS_HELP_STRING([--disable-assert], [turn off assertions])], 16 [AS_IF([test "x$enableval" = xno], 17 [AC_DEFINE([NDEBUG], [1], 18 [Define to 1 if assertions should be disabled.])], 19 [test "x$enableval" != xyes], 20 [AC_MSG_WARN([invalid argument supplied to --enable-assert]) 21 enable_assert=yes])], 22 [enable_assert=yes]) 23 AC_MSG_RESULT([$enable_assert]) 24 ]) 25
