rockowitz
commented
4 years ago On 9/19/19 2:16 AM, sergio wrote:
qmake:
|% ./ddcui ./ddcui: error while loading shared libraries: libddcutil.so.1: cannot open shared object file: No such file or directory | |% ldd ddcui | grep ddc libddcutil.so.1 => not found |
cmake:
|% ldd ddcui | grep ddc libddcutil.so.1 => /usr/local/lib/libddcutil.so.1 (0x00007f5d1c61b000)| It looks like you've used 'sudo make install' to install ddcutil, in which case (by default) libddcutil.so is stored in /usr/local/lib. On some distributions, this directory is in the default library path, on others it is not. (For a discussion of the how libraries are searched for, the manpage for ld.so. Most relevant to us are the libraries specified in /etc/ld.so.conf.d.)
||It appears that CMakeLists.txt is handling this case, while ddcui.pro is not. I'll look at this more closely, but for now try adding the following line to ddcui.pro:
LIBS += -L"/usr/local/lib"
Alternatively, add /usr/local/lib to environment variable LD_LIBRARY_PATH before invoking qmake.
Also what is the output of pkg-check ddcutil --libs
To see the default library search path: | d --verbose |grep SEARCH_DIR |tr -s ' ;'\012|
||
Moreover, the whole shared object dependencies list differs: ddcui builded with cmake points to |libXrandr.so.2|, |libXrender.so.1|, |libbsd.so.0|, |libdrm.so.2|, |librt.so.1|, |libudev.so.1|, |libusb-1.0.so.0| while ddcui builded with qmake doesn't.
libXrandr, libdrm, libudev, and libusb-1.0 are dependencies of libddcutil. The remainder may be indirect dependencies of these, or they may be pulled in by the Qt libraries. They shouldn't be pulled in, but no harm if they are (other than bloating the size of the executable). I'll look into this as well.
I had initially been using qmake, but cmake is currently my primary build system. I try to keep ddcui.pro in sync.
Thanks for pointing out these issues.
I look forward to your comments on the running GUI. Please put them in a separate issue. Let's leave this one for build problems.
Sanford
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532910
qmake:
cmake:
Moreover, the whole shared object dependencies list differs: ddcui builded with cmake points to
libXrandr.so.2,libXrender.so.1,libbsd.so.0,libdrm.so.2,librt.so.1,libudev.so.1,libusb-1.0.so.0while ddcui builded with qmake doesn't.