1 # gl-openssl.m4 serial 2
2 dnl Copyright (C) 2013 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.
7 AC_DEFUN([gl_CRYPTO_CHECK],
9 m4_divert_text([DEFAULTS], [with_openssl_default=no])
11 AC_ARG_WITH([openssl],
12 [AS_HELP_STRING([--with-openssl],
13 [use libcrypto hash routines. Valid ARGs are:
14 'yes', 'no', 'auto' => use if available,
15 'optional' => use if available and warn if not available])],
17 [with_openssl=$with_openssl_default])
19 if test "x$1" = xMD5; then
26 AC_SUBST([LIB_CRYPTO])
27 if test "x$with_openssl" != xno; then
28 AC_CHECK_LIB([crypto], [$1],
29 [AC_CHECK_HEADERS([openssl/$ALG_header],
31 AC_DEFINE([HAVE_OPENSSL_$1], [1],
32 [Define to 1 if libcrypto is used for $1.])])])
33 if test "x$LIB_CRYPTO" = x; then
34 if test "x$with_openssl" = xyes; then
35 AC_MSG_ERROR([openssl development library not found for $1])
36 elif test "x$with_openssl" = xoptional; then
37 AC_MSG_WARN([openssl development library not found for $1])