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        Dear all
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<p>
            Nowadays I am interested in meta-GGA DFT calculation of MoS2 materials.It needs qe package compiled with libxc.
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            However after installation complete without error, testing pw.x reports following error: 
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        forrtl: severe (174): SIGSEGV, segmentation fault occurred<br>
Image              PC                Routine            Line        Source             <br>
libxcf90.so.5.2.3  00002ACD67024118  for__signal_handl     Unknown  Unknown<br>
libpthread-2.17.s  00002ACD68D276D0  Unknown               Unknown  Unknown<br>
pw.x               00000000010F3F0E  Unknown               Unknown  Unknown<br>
pw.x               00000000009973E8  date_and_tim_              23  date_and_tim.f90<br>
pw.x               00000000007E9BF3  environment_mp_en         169  environment.f90<br>
pw.x               000000000040C705  MAIN__                     55  pwscf.f90<br>
pw.x               000000000040C69E  Unknown               Unknown  Unknown<br>
libc-2.17.so       00002ACD68F56445  __libc_start_main     Unknown  Unknown<br>
pw.x               000000000040C5A9  Unknown               Unknown  Unknown<br>
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                <br>
        </p>
        <p>
                    It seems that libxcf90 were implemented in wrong way. My config.log file and installation information file "make.inc" is listed in the attachment file.
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                   When excluding libxc in make.inc, all the things runs normally. 
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                   My QE version is 6.3. with libxc version 4.2.3
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                Thanks
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        <p>
                Yadong Wei
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        <p>
                Harbin Institute of Technology
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