samanbarghi/uThreads

::sendmmsg has not been declared

Opened this issue · 3 comments

molixiaoge commented

I download 0.3 release src,and build with gcc 4.9.2.Run make in the root directory,and the error shows 'src/io/Network.cpp:232:15: error: ‘::sendmmsg’ has not been declared .And i serach the code,then i replace ::sendmmsg with sendmmsg ,it make ok.

samanbarghi commented

Hi, Thanks for letting me know. Can I ask which version of glibc you are using? since this is only happening for sendmmsg and not other methods in class Network, I suspect you have a glibc version older than 2.14 and thus need to make a call to the system call. (http://man7.org/linux/man-pages/man2/sendmmsg.2.html). Please let me know the version of glibc you are using and I probably need to fix this to be compatible with older versions of glibc. Thanks.

molixiaoge commented

Yes,you are right! My glibc version is (GNU libc) 2.12.My gcc 4.9.2 is installed by devtoolset-3-toolchain (and i also have gcc 4.4.7).The reason is gcc 4.9.2 use the old glibc 2.12.

Thanks ,for your reply!

samanbarghi commented

Thanks a lot for getting back to me, I will address this issue soon 👍