cannot build gperf on Big Sur

[ungur (Liviu Ungur)]

I have built MacPorts version 2.6.4 using the git version, branch release-2.6. Configuration and installation went fine. However, I realized that I cannot install any port. The failed attempt to install gcc10 led to the following error:

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mymac@MacBook-Pro macports-base.git % sudo port install gcc10 Warning: The macOS 11.0 SDK does not appear to be installed. Ports may not build correctly. Warning: You can install it as part of the Xcode Command Line Tools package by running `xcode-select --install'. ---> Computing dependencies for gcc10 The following dependencies will be installed:

autoconf automake bzip2 cctools cmake curl curl-ca-bundle db48 expat gcc_select gdbm gettext glib2 gmp gperf help2man icu isl ld64 ld64-xcode libarchive libcxx libedit libffi libgcc libgcc10 libiconv libidn2 libmpc libpsl libtool libunistring libunwind-headers libuv libxml2 llvm-10 llvm_select lz4 lzo2 mpfr ncurses openssl p5.28-locale-gettext pcre perl5.28 perl5.30 pkgconfig python38 python3_select python_select readline sqlite3 texinfo xar xz zlib zstd

Continue? [Y/n]: Y Warning: The macOS 11.0 SDK does not appear to be installed. Ports may not build correctly. Warning: You can install it as part of the Xcode Command Line Tools package by running `xcode-select --install'. ---> Fetching archive for gperf ---> Attempting to fetch gperf-3.1_0.darwin_20.x86_64.tbz2 from ​http://jog.id.packages.macports.org/macports/packages/gperf ---> Attempting to fetch gperf-3.1_0.darwin_20.x86_64.tbz2 from ​https://kmq.jp.packages.macports.org/gperf ---> Attempting to fetch gperf-3.1_0.darwin_20.x86_64.tbz2 from ​https://pek.cn.packages.macports.org/macports/packages/gperf ---> Configuring gperf Error: Failed to configure gperf, consult /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_gperf/gperf/work/gperf-3.1/config.log Error: Failed to configure gperf: configure failure: command execution failed Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_gperf/gperf/main.log for details. Error: Follow ​https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port gcc10 failed

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gcc --version Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1 Apple clang version 12.0.0 (clang-1200.0.32.27) Target: x86_64-apple-darwin20.1.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

[ungur (Liviu Ungur)]

/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_gperf/gperf/work/gperf-3.1/config.log