Why will my coreapplication need libQtGui.so.4 lib

[yagabey]

Hello,
I am writing a core application . I used no gui classes. But readelf -d output of my application is like that:

0x00000001 (NEEDED) Shared library: [libQtXml.so.4]
0x00000001 (NEEDED) Shared library: [libQtGui.so.4]
0x00000001 (NEEDED) Shared library: [libts-0.0.so.0]
0x00000001 (NEEDED) Shared library: [libQtNetwork.so.4]
0x00000001 (NEEDED) Shared library: [libQtCore.so.4]
0x00000001 (NEEDED) Shared library: [librt.so.1]
0x00000001 (NEEDED) Shared library: [libdl.so.2]
0x00000001 (NEEDED) Shared library: [libpthread.so.0]
0x00000001 (NEEDED) Shared library: [libstdc++.so.6]
0x00000001 (NEEDED) Shared library: [libm.so.6]
0x00000001 (NEEDED) Shared library: [libgcc_s.so.1]
0x00000001 (NEEDED) Shared library: [libc.so.6]

Why does it need libQtGui.so.4 lib although none of my classes are gui classes?

[ktk]

Hello,
I am writing a core application . I used no gui classes. But readelf -d output of my application is like that:

0x00000001 (NEEDED) Shared library: [libQtXml.so.4]
0x00000001 (NEEDED) Shared library: [libQtGui.so.4]
[...]
Why does it need libQtGui.so.4 lib although none of my classes are gui classes?

How did you build your application?

Something in the build process seemingly added Gui and Network

[jpn]

Add

QT -= gui

QT -= gui

To copy to clipboard, switch view to plain text mode 

to the .pro file.

[yagabey]

ok,

QT -= gui

QT -= gui

To copy to clipboard, switch view to plain text mode 

works..thanks..