2 dnl Copyright (C) 2005-2017 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
10 AC_ARG_WITH([libgcrypt],
11 AS_HELP_STRING([--with-libgcrypt], [use libgcrypt for low-level crypto]),
12 libgcrypt=$withval, libgcrypt=no)
13 if test "$libgcrypt" != no; then
14 # gc-libgcrypt.c will fail on startup if we don't have
15 # version 1.4.4 or later, so test for it early. */
17 m4_ifdef([AM_PATH_LIBGCRYPT],
18 [AM_PATH_LIBGCRYPT([1.4.4], [gl_good_gcrypt=yes],
19 [AC_MSG_ERROR([libgcrypt is too old])])])
20 if test "x$gl_good_gcrypt" != xno; then
21 AC_LIB_HAVE_LINKFLAGS([gcrypt], [gpg-error], [#include <gcrypt.h>])
23 AC_MSG_ERROR([libgcrypt not found])