bug#54378: Still build failed with USE='gtk -X gui'

[Robert Pluim]

>>>>> On Tue, 15 Mar 2022 18:58:40 +0200, Eli Zaretskii <eliz@gnu.org> said:
    >> This is the error I got:
    >> /usr/bin/x86_64-pc-linux-gnu-ld: pgtkterm.o: undefined reference to 
symbol 'dlsym@@GLIBC_2.2.5'
    >> /usr/bin/x86_64-pc-linux-gnu-ld: /lib64/libdl.so.2: error adding 
symbols: DSO missing from command line
    >> clang-13: error: linker command failed with exit code 1 (use -v to see 
invocation)

    Eli> I guess this means that configuration needs a configure-time test for
    Eli> linking against libdl, as some systems do need that separate library
    Eli> to have dlopen/dlsym/etc.

dlsym is part of glibc, so thereʼs something else going on.

The complete link line would be useful, can you run 'make V=1' and
show the error log?

Robert
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