texlive-bin @2020.54632_2+x11 build failure with mpfr in /usr/local

[dbl001 (dbl)]

OS X 10.11.6

 sudo port upgrade outdated
Password:
--->  Computing dependencies for texlive-bin
--->  Fetching archive for texlive-bin
--->  Attempting to fetch texlive-bin-2020.54632_2+x11.darwin_15.x86_64.tbz2 from https://packages.macports.org/texlive-bin
--->  Attempting to fetch texlive-bin-2020.54632_2+x11.darwin_15.x86_64.tbz2 from https://ywg.ca.packages.macports.org/mirror/macports/packages/texlive-bin/texlive-bin
--->  Attempting to fetch texlive-bin-2020.54632_2+x11.darwin_15.x86_64.tbz2 from https://kmq.jp.packages.macports.org/texlive-bin
--->  Building texlive-bin
Error: Failed to build texlive-bin: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_tex_texlive-bin/texlive-bin/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets to report a bug.

Here's the error:

cp /: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/pmpost pmpost-pmp.o pmpost-pmpmath.o pmpost-pmpmathbinary.o pmpost-pmpmathdecimal.o pmpost-pmpmathdouble.o pmpost-pmpost.o pmpost-pmpstrings.o pmpost-pmpxout.o pmpost-ppngout.o pmpost-ppsout.o pmpost-psvgout.o pmpost-ptfmin.o  /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_tex_texlive-bin/texlive-bin/work/texlive-source-2020.54632-stripped/texk/ptexenc/.libs/libptexenc.dylib /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_tex_texlive-bin/texlive-bin/work/texlive-source-2020.54632-stripped/texk/kpathsea/.libs/libkpathsea.dylib /usr/local/lib/libmpfr.a /usr/local/lib/libgmp.a -L/opt/local/lib -lcairo -lpixman-1 -lpng16 -lz libmputil.a
:info:build   "_mpfr_set_zero", referenced from:
:info:build       _mp_initialize_binary_math in pmpost-pmpmathbinary.o
:info:build       _mp_new_number in pmpost-pmpmathbinary.o
:info:build       _mp_binary_n_arg in pmpost-pmpmathbinary.o
:info:build       _mp_binary_m_log in pmpost-pmpmathbinary.o
:info:build       _mp_binary_pyth_sub in pmpost-pmpmathbinary.o
:info:build       _mp_binary_square_rt in pmpost-pmpmathbinary.o
:info:build       _mp_check_mpfr_t in pmpost-pmpmathbinary.o
:info:build       ...
:info:build ld: symbol(s) not found for architecture x86_64

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #65015.