undefined reference to `pthread_atfork'

[Crafter76]

Centos 7.5
after make I get
...
LINK wrk
obj/lib/libcrypto.a(threads_pthread.o): In function fork_once_func': threads_pthread.c:(.text+0x16): undefined reference to pthread_atfork'
collect2: ошибка: выполнение ld завершилось с кодом возврата 1
make: *** [wrk] Ошибка 1

[headius]

Also happening on Ubuntu 16.04.

[headius]

Tag 4.1.0 builds ok on Ubuntu 16.04. I notice parts of the build use -pthread instead of -lpthread...which may line up with some suggestions here: openssl/openssl#3884

[DavisFrench]

I get this as well when trying to install wrk in a dockerfile using the latest Ubuntu image, which is 18.04 I believe.

[naftulikay]

Also affected on Ubuntu 18.04.

[wg]

Thank you all for the reports! Looks like library link order matters with the latest OpenSSL, so I've updated that.