Only allow "apt-get build-dep path" when path starts with ./ or /

This avoid the subtle problem that someone might have a directory
with the same package name as the build-depends he/she is trying
to fetch. Also print a note that the specific file/dir is used.

1 files changed, 1 insertions, 0 deletions

diff --git a/apt-pkg/contrib/strutl.h b/apt-pkg/contrib/strutl.h
index 5733fd6e2..da8bebdb5 100644
--- a/apt-pkg/contrib/strutl.h
+++ b/apt-pkg/contrib/strutl.h
@@ -40,6 +40,7 @@ namespace APT {
    namespace String {
       std::string Strip(const std::string &s);
       bool Endswith(const std::string &s, const std::string &ending);
+      bool Startswith(const std::string &s, const std::string &starting);
    }
 }