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sys-libs/glibc: expose a knob to downgrade glibc

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It's not something to be used lightly. Useful when the damage was not
yet done to the rest of the system.

Usage example:
    # I_ALLOW_TO_BREAK_MY_SYSTEM=yes emerge -v1 "=glibc-${old-version}"

Be prepared to deal with downgrade consequences like disappeared symbols
and versions of symbols

Package-Manager: Portage-2.3.69, Repoman-2.3.16
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
This commit is contained in:
Sergei Trofimovich
2019-07-23 08:12:09 +01:00
parent dcb74f4354
commit f0835514f5
2 changed files with 2 additions and 2 deletions
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2
sys-libs/glibc/glibc-2.29-r2.ebuild
View File

@@ -614,7 +614,7 @@ sanity_prechecks() {
if has_version ">${CATEGORY}/${P}-r10000" ; then
eerror "Sanity check to keep you from breaking your system:"
eerror " Downgrading glibc is not supported and a sure way to destruction."
die "Aborting to save your system."
[[ ${I_ALLOW_TO_BREAK_MY_SYSTEM} = yes ]] || die "Aborting to save your system."
fi
if ! do_run_test '#include <unistd.h>\n#include <sys/syscall.h>\nint main(){return syscall(1000)!=-1;}\n' ; then

2
sys-libs/glibc/glibc-9999.ebuild
View File

@@ -621,7 +621,7 @@ sanity_prechecks() {
if has_version ">${CATEGORY}/${P}-r10000" ; then
eerror "Sanity check to keep you from breaking your system:"
eerror " Downgrading glibc is not supported and a sure way to destruction."
die "Aborting to save your system."
[[ ${I_ALLOW_TO_BREAK_MY_SYSTEM} = yes ]] || die "Aborting to save your system."
fi
if ! do_run_test '#include <unistd.h>\n#include <sys/syscall.h>\nint main(){return syscall(1000)!=-1;}\n' ; then