Error: Failed to build texlive-bin: command execution failed

[dbl001 (dbl)]

I'm on OS X El Capitan 10.11.6.

Error building texlive-bin: ..

rch x86_64 -o mpost mpost-mpost.o mpost-mpxout.o libmplibcore.a libmplibbackends.a  /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_tex_texlive-bin/texlive-bin/work/texlive-source-2018.47642-stripped/texk/kpathsea/libkpathsea.la -lmpfr -lgmp -L/opt/local/lib -lcairo -L/opt/local/lib -lpixman-1 -L/opt/local/lib -lpng16 -lz libmputil.a
:info:build libtool: link: /usr/bin/clang -Wimplicit -Wreturn-type -Wdeclaration-after-statement -Wno-unknown-pragmas -pipe -Os -arch x86_64 -Wl,-headerpad_max_install_names -arch x86_64 -o .libs/mpost mpost-mpost.o mpost-mpxout.o  libmplibcore.a libmplibbackends.a /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_tex_texlive-bin/texlive-bin/work/texlive-source-2018.47642-stripped/texk/kpathsea/.libs/libkpathsea.dylib /usr/local/lib/libmpfr.a /usr/local/lib/libgmp.dylib -L/opt/local/lib -lcairo -lpixman-1 -lpng16 -lz libmputil.a
:info:build Undefined symbols for architecture x86_64:
:info:build   "_mpfr_set_zero", referenced from:
:info:build       _mp_initialize_binary_math in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       _mp_new_number in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       _mp_binary_n_arg in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       _mp_binary_m_log in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       _mp_binary_pyth_sub in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       _mp_binary_square_rt in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       _mp_check_mpfr_t in libmplibcore.a(libmplibcore_a-mpmathbinary.o)
:info:build       ...
:info:build ld: symbol(s) not found for architecture x86_64
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)

[dbl001 (dbl)]

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_tex_texlive-bin/texlive-bin/main.log

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #56682; see recommendation there.