Qt 5.11 static on Linux, network problem

luca

Hi all,
I built Qt 5.11 for linux statically with:

./configure -static -release -openssl-linked -no-xcb -nomake tests -nomake examples -skip qtwebengine -prefix /opt/qt5111-static -no-opengl

It built without problem and I can build my app using the static Qt but I have problems when the application try to connect to remote server using:

QTcpSocket::connectToHost()

the application crashes while it works fine using dynamic Qt link version.
Running the app with gdb I get:

[2018-07-17 17:19:11] Debug:    QAbstractSocket::HostLookupState
[New Thread 0x7ffff6d65700 (LWP 11891)]

Thread 3 "Thread (pooled)" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff6d65700 (LWP 11891)]
0x00007ffff79925e8 in __GI___inet_aton (cp=0x7ffff6d62717 "\n", cp@entry=0x7ffff6d6270b "172.28.172.1\n", addr=addr@entry=0x7ffff6d626e4) at inet_addr.c:158
158     inet_addr.c: No such file or directory.

It seems static Qt version doesn't link correctly some network system library.

Where do I wrong?

Thanks

luca

EDIT:
it seems that using an ip address works fine while using a "name" doesn't works. (with static Qt)

SGaist

Hi,

Did you check with ldd if you have something unusual ?
What do you have in the plugins folder of your static Qt build ?

luca

Hi,
I don't think it's related to plugins because it works if I try to connect to a server using an IP address while it crashes if I tra to connect using a server name (for example www.google.it) .
Being a static build, ldd give me no result as expected.

I'm considering it could be a BUG but I'd like to be sure before creating an issue on bugreport.

SGaist

I'm thinking about the bearer plugin that might have an influence.

luca

I've opened an issue because I found a way to reproduce the problem.
https://bugreports.qt.io/browse/QTBUG-69513