implement a public pkgSystem::MultiArchSupported

Some codepaths need to check if the system (in our case usually dpkg)
supports MultiArch or not. We had copy-pasted the check so far into
these paths, but having it as a system check is better for reusability.

1 files changed, 5 insertions, 0 deletions

diff --git a/apt-pkg/deb/debsystem.h b/apt-pkg/deb/debsystem.h
index aed77520e..521552ef4 100644
--- a/apt-pkg/deb/debsystem.h
+++ b/apt-pkg/deb/debsystem.h
@@ -45,6 +45,11 @@ class debSystem : public pkgSystem
 
    debSystem();
    virtual ~debSystem();
+
+   APT_HIDDEN static std::string GetDpkgExecutable();
+   APT_HIDDEN static std::vector<std::string> GetDpkgBaseCommand();
+   APT_HIDDEN static void DpkgChrootDirectory();
+   APT_HIDDEN static bool SupportsMultiArch();
 };
 
 extern debSystem debSys;