multiple undefined references (Cygwin)

[nowox]

I am trying to install pyzmq on Cygwin32 or Cygwin64 and I tried this command given here:

$ gcc -shared -o cygzmq.dll -Wl,--out-implib=libzmq.dll.a -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive .libs/libzmq.a -Wl,--no-whole-archive -lstdc++
.libs/libzmq.a(libzmq_la-ctx.o): In function `zmq::ctx_t::~ctx_t()':
/usr/src/zeromq-4.1.3/src/ctx.cpp:117: undefined reference to `randombytes_close'
/usr/src/zeromq-4.1.3/src/ctx.cpp:117:(.text+0xe83): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `randombytes_close'
...
/usr/src/zeromq-4.1.3/src/curve_server.cpp:547: undefined reference to `crypto_box_afternm'
.libs/libzmq.a(libzmq_la-curve_server.o): In function `zmq::curve_server_t::process_initiate(zmq::msg_t*)':
/usr/src/zeromq-4.1.3/src/curve_server.cpp:421: undefined reference to `crypto_secretbox_open'
/usr/src/zeromq-4.1.3/src/curve_server.cpp:454: undefined reference to `crypto_box_open'
/usr/src/zeromq-4.1.3/src/curve_server.cpp:479: undefined reference to `crypto_box_open'
/usr/src/zeromq-4.1.3/src/curve_server.cpp:496: undefined reference to `crypto_box_beforenm'
.libs/libzmq.a(libzmq_la-zmq_utils.o): In function `zmq_curve_keypair':
/usr/src/zeromq-4.1.3/src/zmq_utils.cpp:202: undefined reference to `crypto_box_keypair'
collect2: error: ld returned 1 exit status

Why do I get undefined references?

[hintjens]

Try adding -lsodium to the link command

On Tue, Nov 10, 2015 at 11:53 AM, Yves Chevallier notifications@github.com
wrote:

I am trying to install pyzmq on Cygwin32 or Cygwin64 and I tried this
command given here zeromq/pyzmq#113:

$ gcc -shared -o cygzmq.dll -Wl,--out-implib=libzmq.dll.a -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive .libs/libzmq.a -Wl,--no-whole-archive -lstdc++
.libs/libzmq.a(libzmq_la-ctx.o): In function zmq::ctx_t::~ctx_t()': /usr/src/zeromq-4.1.3/src/ctx.cpp:117: undefined reference torandombytes_close'
/usr/src/zeromq-4.1.3/src/ctx.cpp:117:(.text+0xe83): relocation truncated to fit: R_X86_64_PC32 against undefined symbol randombytes_close' ... /usr/src/zeromq-4.1.3/src/curve_server.cpp:547: undefined reference tocrypto_box_afternm'
.libs/libzmq.a(libzmq_la-curve_server.o): In function zmq::curve_server_t::process_initiate(zmq::msg_t*)': /usr/src/zeromq-4.1.3/src/curve_server.cpp:421: undefined reference tocrypto_secretbox_open'
/usr/src/zeromq-4.1.3/src/curve_server.cpp:454: undefined reference to crypto_box_open' /usr/src/zeromq-4.1.3/src/curve_server.cpp:479: undefined reference tocrypto_box_open'
/usr/src/zeromq-4.1.3/src/curve_server.cpp:496: undefined reference to crypto_box_beforenm' .libs/libzmq.a(libzmq_la-zmq_utils.o): In functionzmq_curve_keypair':
/usr/src/zeromq-4.1.3/src/zmq_utils.cpp:202: undefined reference to `crypto_box_keypair'
collect2: error: ld returned 1 exit status

Why do I get undefined references?

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#1639.

[nowox]

Excellent it worked and I was able to build pyzmq and notebook!

[hintjens]

Great :-)

On Tue, Nov 10, 2015 at 1:47 PM, Yves Chevallier notifications@github.com
wrote:

Excellent it worked and I was able to build pyzmq and notebook!

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#1639 (comment).