Require OpenSSL 1.1.0 or later.

[tinc] / m4 / openssl.m4

diff --git a/m4/openssl.m4 b/m4/openssl.m4
index 26cbcbe..99023c2 100644 (file)
--- a/m4/openssl.m4
+++ b/m4/openssl.m4
@@ -40,17 +40,10 @@ AC_DEFUN([tinc_OPENSSL],
     [AC_MSG_ERROR([LibreSSL/OpenSSL header files not found.]); break]
   )
 
-  AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
+  AC_CHECK_LIB(crypto, OPENSSL_init_crypto,
     [LIBS="-lcrypto $LIBS"],
     [AC_MSG_ERROR([LibreSSL/OpenSSL libraries not found.])]
   )
 
-  AC_CHECK_FUNCS([RAND_status EVP_EncryptInit_ex], ,
-    [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
-  )
-
-  AC_CHECK_DECLS([OpenSSL_add_all_algorithms], ,
-    [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
-    [#include <openssl/evp.h>]
-  )
+  AC_DEFINE(HAVE_OPENSSL, 1, [enable OpenSSL support])
 ])