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Problems with libdl.so.2 library

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Old   April 18, 2023, 06:45
Angry Problems with libdl.so.2 library
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Gianmarco Farro
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When installing SU2 7.5.1 on Ubuntu 20.04 using the ninja command, I faced the following problem:


[496/503] Linking target SU2_CFD/src/SU2_CFD
FAILED: SU2_CFD/src/SU2_CFD
c++ -o SU2_CFD/src/SU2_CFD SU2_CFD/src/SU2_CFD.p/SU2_CFD.cpp.o -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -Wl,-rpath,/usr/lib/x86_64-linux-gnu/openmpi/lib -Wl,-rpath-link,/usr/lib/x86_64-linux-gnu/openmpi/lib -Wl,--start-group SU2_CFD/src/libSU2core.a externals/metis/libmetis.a externals/parmetis/libparmetis.a externals/tecio/teciompisrc/libteciompi.a subprojects/CoolProp/libCoolProp.a Common/src/libSU2Common.a /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi.so /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi_cxx.so -Wl,--end-group
/usr/bin/ld: subprojects/CoolProp/libCoolProp.a(src_Backends_REFPROP_REFPROPMixtureB ackend.cpp.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
/usr/bin/ld: /lib/x86_64-linux-gnu/libdl.so.2: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
[498/503] Compiling C++ object SU2_DOT/src/SU2_DOT.p/SU2_DOT.cpp.o
ninja: build stopped: subcommand failed.


The build was made with:


./meson.py build -Denable-coolprop=true -Denable-cgns=false --prefix=/home/gianmarco/SU2/SU2_src

and the installation with:


./ninja -C build install

Does anyone know how can I solve the problem?
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Old   April 20, 2023, 02:25
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PENG YAN
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It seems that you have some issue of openmpi.


try:
$ sudo apt install libopenmpi-dev


then re-compile and re-build.
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Old   April 20, 2023, 02:35
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Gianmarco Farro
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Thanks for the reply!

The problem was the make version... maybe it was too old. Upgrading to version 4.4.1 made the trick, since the compiler˛ was able to use dl libraries and dlopen notably.
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