c++ - Undefined reference. DSO missing -


i'm trying compile qt ffmpeg wrapper simple encoding/decoding example under linux qtffmpegwrapper source

# set list of required ffmpeg libraries .pro file libs += -lswresample \     -lavcodec \     -lavformat \     -lavutil \     -lswscale \     -lz

compiling failed due error :-1: error: /home/mher/qt5.4.0/5.4/gcc_64/lib/libavformat.a(avisynth.o): undefined reference symbol 'dlclose@@glibc_2.2.5' /lib/x86_64-linux-gnu/libdl.so.2:-1: error: error adding symbols: dso missing command line

i found similar situation dso missing command line here. should set run settings? or need change .pro file?

try add line: libs += -ldl in pro file.


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