Build errors.

[nethomas1968]

Using Ubuntu 20.04, I get this error when doing "make demo_echo_client" 👍
Scanning dependencies of target tiny_websockets_lib
[ 8%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/crypto.cpp.o
[ 16%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/linux_tcp.cpp.o
[ 25%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/message.cpp.o
[ 33%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/openssl_secure_tcp_client.cpp.o
[ 41%] Building CXX object tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/websockets_client.cpp.o
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp: In function ‘websockets::HandshakeRequestResult websockets::generateHandshake(const WSString&, const WSString&, const std::vector<std::pair<std::__cxx11::basic_string, std::__cxx11::basic_string > >&)’:
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:111:25: error: moving a local object in a return statement prevents copy elision [-Werror=pessimizing-move]
111 | return std::move(result);
| ~~~~~~~~~^~~~~~~~
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:111:25: note: remove ‘std::move’ call
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp: In member function ‘bool websockets::WebsocketsClient::send(const char*)’:
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:352:33: error: ‘strlen’ was not declared in this scope
352 | return this->send(data, strlen(data));
| ^~~~~~
/home/nick_thomas/Data/Utils/WebSockets/TinyWebsockets/TinyWebsockets/tiny_websockets_lib/src/websockets_client.cpp:6:1: note: ‘strlen’ is defined in header ‘’; did you forget to ‘#include ’?
5 | #include <tiny_websockets/internals/wscrypto/crypto.hpp>
+++ |+#include
6 |
cc1plus: all warnings being treated as errors
make[3]: *** [tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/build.make:115: tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/src/websockets_client.cpp.o] Error 1
make[2]: *** [CMakeFiles/Makefile2:263: tiny_websockets_lib/CMakeFiles/tiny_websockets_lib.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:189: CMakeFiles/demo_echo_client.dir/rule] Error 2
make: *** [Makefile:188: demo_echo_client] Error 2

Thought you should know.