erban

> 40%] Building CXX object libco/CMakeFiles/example_cond.dir/example_cond.cpp.o > [ 43%] Linking CXX executable example_cond > /opt/rh/devtoolset-9/root/usr/libexec/gcc/x86_64-redhat-linux/9/ld: libcolib.a(co_hook_sys_call.cpp.o): in function `co_gethostbyname_r(char const*, hostent*, char*, unsigned long, hostent**, int*)': co_hook_sys_call.cpp:(.text+0x1e39): undefined reference to...