[gentoo-commits] repo/gentoo:master commit in: sys-libs/glibc/

[Sergei Trofimovich]

commit:     f0835514f598eb471edd0d92dc29536afbbcb039
Author:     Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
AuthorDate: Tue Jul 23 07:12:09 2019 +0000
Commit:     Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
CommitDate: Tue Jul 23 07:14:33 2019 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f0835514

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

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 <AT> gentoo.org>

 sys-libs/glibc/glibc-2.29-r2.ebuild | 2 +-
 sys-libs/glibc/glibc-9999.ebuild    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys-libs/glibc/glibc-2.29-r2.ebuild 
b/sys-libs/glibc/glibc-2.29-r2.ebuild
index da78a273d19..313e5c6b440 100644
--- a/sys-libs/glibc/glibc-2.29-r2.ebuild
+++ b/sys-libs/glibc/glibc-2.29-r2.ebuild
@@ -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

diff --git a/sys-libs/glibc/glibc-9999.ebuild b/sys-libs/glibc/glibc-9999.ebuild
index 2b0697465d5..0ba2efb974c 100644
--- a/sys-libs/glibc/glibc-9999.ebuild
+++ b/sys-libs/glibc/glibc-9999.ebuild
@@ -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