3 dnl Copyright (C) 2005-2024 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 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 AM_PATH_LIBGCRYPT([1.4.4], [gl_good_gcrypt=yes],
18 [AC_MSG_ERROR([libgcrypt is too old])])
19 if test "x$gl_good_gcrypt" != xno; then
20 dnl Ignore the value of LIBGCRYPT_LIBS, because it does not include
22 AC_LIB_HAVE_LINKFLAGS([gcrypt], [gpg-error], [#include <gcrypt.h>])
23 LIB_CRYPTO="$LIBGCRYPT"
25 AC_MSG_ERROR([libgcrypt not found])
28 AC_SUBST([LIB_CRYPTO])
30 AC_REQUIRE([AC_C_RESTRICT])