Fixes ticket 6673.
@@ -0,0 +1,4 @@
+ o Minor features (build):
+ - Detect and reject attempts to build Tor with threading support
+ when OpenSSL have been compiled with threading support disabled.
+ Fixes bug 6673.
@@ -3000,6 +3000,12 @@ memwipe(void *mem, uint8_t byte, size_t sz)
}
#ifdef TOR_IS_MULTITHREADED
+
+#ifndef OPENSSL_THREADS
+#error OpenSSL has been built without thread support. Tor requires an \
+ OpenSSL library with thread support enabled.
+#endif
/** Helper: OpenSSL uses this callback to manipulate mutexes. */
static void
openssl_locking_cb_(int mode, int n, const char *file, int line)