[Bug libgcc/123976] GCC 15.2.0 (libgcc) does not build on PPC Mac OS X 10.5.8, Leopard, because of missing "md-unwind-def.h"

[Peter_Dyballa at web dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123976

--- Comment #103 from Peter Dyballa <Peter_Dyballa at web dot de> ---
The system's tar (GNU tar) 1.15.1 seems unsuitable for extracting
gcc-16.1.0.tar.xz:

nice xz -c .../distfiles/gcc16/gcc-16.1.0.tar.xz | nice tar vtf -
tar: This does not look like a tar archive
tar: Skipping to next header
tar: Archive contains obsolescent base-64 headers
tar: Read 384 bytes from -
tar: Error exit delayed from previous errors

port -v activate gnutar
--->  Computing dependencies for gnutar....
The following dependencies will be installed:
 gettext
 gettext-tools-libs
 libtextstyle

makes version 1.35 available – and introduces gettext to the system. These
ports were only active to extract the three unchanged .MK files. Afterwards
they were deactivated again.