1# gc.m4 serial 10
2dnl Copyright (C) 2005-2016 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_GC],
8[
9  AC_SUBST([LIB_CRYPTO])
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. */
16    gl_good_gcrypt=no
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>])
22    else
23      AC_MSG_ERROR([libgcrypt not found])
24    fi
25  fi
26])
27