Merging of the entire pre5 branch.

[tinc] / m4 / openssl.m4

diff --git a/m4/openssl.m4 b/m4/openssl.m4
index bf5ce9f..e5c0939 100644 (file)
--- a/m4/openssl.m4
+++ b/m4/openssl.m4
@@ -28,4 +28,22 @@ AC_DEFUN(tinc_OPENSSL,
     [LIBS="$LIBS -lcrypto"],
     [AC_MSG_ERROR("OpenSSL libraries not found.")]
   )
+
+  AC_CHECK_FUNCS(RAND_pseudo_bytes)
+
+  AC_CHECK_FUNC(OpenSSL_add_all_algorithms,
+    [],
+    AC_CHECK_FUNC(SSLeay_add_all_algorithms,
+      [AC_DEFINE(HAVE_SSLEAY_ADD_ALL_ALGORITHMS)],
+      [AC_MSG_ERROR("Missing required OpenSSL functionality!")]
+    )
+  )
+
+  AC_CHECK_FUNC(dlopen,
+    [],
+    AC_CHECK_LIB(dl, dlopen,
+      [LIBS="$LIBS -ldl"],
+      [AC_MSG_ERROR("OpenSSL depends on libdl.")]
+    )
+  )
 ])