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GCC バージョンを更新できません

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GCC バージョンを更新できません

私のDebian PCのバージョンをアップデートするためにgcc、私はこれに従っています答えしかし、それは私には効果がありませんでした。

┌─[shravan40@ChangeStreet] - [/etc/apt/sources.list.d] - [Mon Oct 24, 13:27]
└─[$] <> cat testing.list 
deb http://ftp.us.debian.org/debian testing main contrib non-free
┌─[shravan40@ChangeStreet] - [/etc/apt/sources.list.d] - [Mon Oct 24, 13:27]
└─[$] <>

┌─[shravan40@ChangeStreet] - [/etc/apt/preferences.d] - [Mon Oct 24, 13:27]
└─[$] <> cat testing 
Package: gcc
Pin: release a=testing
Pin-Priority: 100
┌─[shravan40@ChangeStreet] - [/etc/apt/preferences.d] - [Mon Oct 24, 13:27]
└─[$] <> 

┌─[shravan40@ChangeStreet] - [~] - [Mon Oct 24, 13:30]
└─[$] <> sudo apt-get install -t testing gcc
[sudo] password for shravan40: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gcc is already the newest version (4:4.9.2-2).
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
┌─[shravan40@ChangeStreet] - [~] - [Mon Oct 24, 13:30]
└─[$] <>

答え1

ファイルの,行末に追加する必要がありました。1testing

┌─[shravan40@ChangeStreet] - [/etc/apt/preferences.d] - [Mon Oct 24, 13:27]
└─[$] <> cat testing 
Package: gcc,
Pin: release a=testing
Pin-Priority: 100
┌─[shravan40@ChangeStreet] - [/etc/apt/preferences.d] - [Mon Oct 24, 13:27]
└─[$] <>

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