[Linker error] undefined reference to `lws_callback_on_writable'

[myghuser7]

Hello, Tried compile binacpp on windows with devc++ but I got this error ?

[Linker error] undefined reference to lws_callback_on_writable' [Linker error] undefined reference to lws_create_context'
[Linker error] undefined reference to lws_canonical_hostname' [Linker error] undefined reference to lws_client_connect_via_info'
[Linker error] undefined reference to lws_service' [Linker error] undefined reference to lws_context_destroy'

I added libwebsockets.a but it did not change.

Thanks.

[GisTom2]

The similar error under Ubuntu:

/example$ make example

Making example

g++ -I../lib/libcurl-7.56.0/include -I../lib/jsoncpp-1.8.3/include -I../lib/libwebsockets-2.4.0/include -I../lib/libbinacpp/include
example.cpp
-L../lib/libcurl-7.56.0/lib
-L../lib/libwebsockets-2.4.0/lib
-L../lib/libbinacpp/lib
-lcurl -ljsoncpp -lcrypto -lwebsockets -lbinacpp -o example
/usr/bin/ld: warning: librtmp.so.0, needed by ../lib/libcurl-7.56.0/lib/libcurl.so, not found (try using -rpath or -rpath-link)
/tmp/ccK4F6or.o: In function main': example.cpp:(.text+0x2273): undefined reference to BinaCPP::init(std::__cxx11::basic_string<char, std::char_traits, std::allocator >&, std::__cxx11::basic_string<char, std::char_traits, std::allocator >&)'
../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Write' ../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_SetBufferMS'
../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Free' ../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Read'
../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Alloc' ../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Connect1'
../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Close' ../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_ConnectStream'
../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_SetupURL' ../lib/libcurl-7.56.0/lib/libcurl.so: undefined reference to RTMP_Init'
collect2: error: ld returned 1 exit status
Makefile:25: recipe for target 'example' failed
make: *** [example] Error 1

[mrsahabu]

@GisTom2 did you solve the error?

[GisTom2]

@mrsahabu
I do not remember...
There was several different projects last years.
I am sorry.

Try this one https://stackoverflow.com/questions/41652245/error-compiling-mosquitto-1-4-8-with-libwebsockets