>>>>> On Sat, 06 Dec 2014, Zac Medico wrote: > The PMS people should be *very* interested in any changes to unpack > behavior like this. It supports behavior that will lead to failures for > older versions of portage and other package managers.
Some remarks: - The upstream deb2targz program supports only data.tar.gz. Only the Gentoo version has been patched up to support other file types. - There is only a single package in the tree with a dependency on app-arch/deb2targz, and this only on AIX . So on most users' systems deb2targz will not be installed, and "ar x" will be used for unpacking. - Paludis and Pkgcore unconditionally use "ar x" for unpacking. - PMS says : deb packages (*.deb). Ebuilds must ensure that the deb2targz program is installed on those platforms where the GNU binutils ar program is not available and the installed ar program is incompatible with GNU archives. Otherwise, ebuilds must ensure that GNU binutils is installed. One could conclude that GNU binutils ar should be used on platforms where it is available. deb2targz should be used only where ar is incompatible with the GNU version. So in any case, this is a problem of Portage only. I'd suggest to change the logic in unpack() as follows: if <ar is GNU>; then ar x ... elif <deb2targz installed>; then deb2targz ... else ar x ... fi And then the deb2targz case could be patched as proposed. After all, it is only a fallback that should be compatible with "ar x" extraction. Ulrich  http://qa-reports.gentoo.org/output/genrdeps/dindex/app-arch/deb2targz  http://dev.gentoo.org/~ulm/pms/5/pms.html#x1-14100011.3.3.13
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