add d-pointer, virtual destructors and de-inline de/constructors

To have a chance to keep the ABI for a while we need all three to team
up. One of them missing and we might loose, so ensuring that they are
available is a very tedious but needed task once in a while.

Git-Dch: Ignore

1 files changed, 3 insertions, 2 deletions

diff --git a/apt-pkg/pkgcache.h b/apt-pkg/pkgcache.h
index 3cc85f1e8..b7bf26c2a 100644
--- a/apt-pkg/pkgcache.h
+++ b/apt-pkg/pkgcache.h
@@ -266,11 +266,12 @@ class pkgCache								/*{{{*/
    static const char *CompTypeDeb(unsigned char Comp) APT_CONST;
    static const char *CompType(unsigned char Comp) APT_CONST;
    static const char *DepType(unsigned char Dep);
-   
+
    pkgCache(MMap *Map,bool DoMap = true);
-   virtual ~pkgCache() {}
+   virtual ~pkgCache();
 
 private:
+   void *d;
    bool MultiArchEnabled;
    APT_HIDDEN PkgIterator SingleArchFindPkg(const std::string &Name);
 };