cleanup headers and especially #includes everywhere

Beside being a bit cleaner it hopefully also resolves oddball problems
I have with high levels of parallel jobs.

Git-Dch: Ignore
Reported-By: iwyu (include-what-you-use)

1 files changed, 4 insertions, 1 deletions

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index 489d81159..82b6426c6 100644
--- a/apt-pkg/algorithms.h
+++ b/apt-pkg/algorithms.h
@@ -33,8 +33,11 @@
 
 #include <apt-pkg/packagemanager.h>
 #include <apt-pkg/depcache.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
 
 #include <iostream>
+#include <string>
 
 #include <apt-pkg/macros.h>
 
@@ -140,7 +143,7 @@ class pkgProblemResolver						/*{{{*/
    // Try to resolve problems only by using keep
    bool ResolveByKeep();
 
-   __deprecated void InstallProtect();
+   APT_DEPRECATED void InstallProtect();
 
    pkgProblemResolver(pkgDepCache *Cache);
    ~pkgProblemResolver();