Arch Linux

bilalmujeeb

Member

Registered: 2011-12-06

Posts: 3

lib/libz.so: could not read symbols: Invalid operation

Hi,

I am facing the following issue while compiling my code which is using gdcm lib in QT. The same source works fine in ubuntu but not here....

lQt5PrintSupport -lQt5OpenGL -lQt5Widgets -lQt5Gui -lQt5Core -lGL -lpthread
/usr/bin/ld: /usr/local/lib/libgdcmDSED.a(gdcmReader.cxx.o): undefined reference to symbol 'inflateInit2_'
/usr/bin/ld: note: 'inflateInit2_' is defined in DSO /usr/lib/libz.so.1 so try adding it to the linker command line
/usr/lib/libz.so.1: could not read symbols: Invalid operation
Makefile:181: recipe for target 'imageviewer' failed
collect2: error: ld returned 1 exit status
make: *** [imageviewer] Error 1
19:41:26: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project imageviewer (kit: Desktop)

if I add -lz in the project .pro file.. I get the following error..

usr/bin/ld: /usr/local/lib/libgdcmDSED.a(gdcmReader.cxx.o): undefined reference to symbol 'inflateInit2_'
Makefile:181: recipe for target 'imageviewer' failed
/usr/bin/ld: note: 'inflateInit2_' is defined in DSO /usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.2/../../../../lib/libz.so so try adding it to the linker command line
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.2/../../../../lib/libz.so: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
make: *** [imageviewer] Error 1
19:02:58: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project imageviewer (kit: Desktop)
When executing step 'Make'

Don't know whats wrong and how it will be solved?

Bilal

ConnorBehan

Package Maintainer (PM)

From: Long Island NY

Registered: 2007-07-05

Posts: 1,359

Website

Re: lib/libz.so: could not read symbols: Invalid operation

Some people have run into this before and they say that the full path to libz needs to be specified, not just "-lz". Also, it would be good to use code tags.

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bilalmujeeb

Member

Registered: 2011-12-06

Posts: 3

Re: lib/libz.so: could not read symbols: Invalid operation

Hi Connor,

I solved the issue, it seems like the library path was pointing to /usr/local/lib rather than /usr/lib. Now the code is working fine.
I assume that ubuntu and arch places gdcm libraries at different locations, it was working code moved from ubuntu to arch and i got that error.

Bilal