xmlsec1 build fails on Big Sur

[mbaechtold (Martin Bächtold)]

sudo /opt/local/bin/port install xmlsec1

---> Fetching archive for ncurses ---> Attempting to fetch ncurses-6.2_1.darwin_20.x86_64.tbz2 from ​https://packages.macports.org/ncurses ---> Attempting to fetch ncurses-6.2_1.darwin_20.x86_64.tbz2.rmd160 from ​https://packages.macports.org/ncurses ---> Installing ncurses @6.2_1 ---> Cleaning ncurses ---> Deactivating ncurses @6.2_0 ---> Cleaning ncurses ---> Activating ncurses @6.2_1 ---> Cleaning ncurses ---> Computing dependencies for libgcrypt ---> Fetching archive for libgcrypt ---> Attempting to fetch libgcrypt-1.9.1_0.darwin_20.x86_64.tbz2 from ​https://packages.macports.org/libgcrypt ---> Attempting to fetch libgcrypt-1.9.1_0.darwin_20.x86_64.tbz2.rmd160 from ​https://packages.macports.org/libgcrypt ---> Installing libgcrypt @1.9.1_0 ---> Cleaning libgcrypt ---> Computing dependencies for libgcrypt ---> Deactivating libgcrypt @1.9.0_1 ---> Cleaning libgcrypt ---> Activating libgcrypt @1.9.1_0 ---> Cleaning libgcrypt ---> Computing dependencies for xmlsec1 ---> Fetching archive for xmlsec1 ---> Attempting to fetch xmlsec1-1.2.31_0+gnutls.darwin_20.x86_64.tbz2 from ​https://packages.macports.org/xmlsec1 ---> Attempting to fetch xmlsec1-1.2.31_0+gnutls.darwin_20.x86_64.tbz2 from ​https://lil.fr.packages.macports.org/xmlsec1 ---> Attempting to fetch xmlsec1-1.2.31_0+gnutls.darwin_20.x86_64.tbz2 from ​https://mse.uk.packages.macports.org/xmlsec1 ---> Building xmlsec1 Error: Failed to build xmlsec1: command execution failed Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_xmlsec1/xmlsec1/main.log for details. Error: Follow ​https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port xmlsec1 failed