PR4186: cross-architecture probe building

* main.cxx (main): Add 'a:' and 'B:' options.
* session.h (kbuildflags): New place to store -B args.
* testsuite/systemtap.base/cmd_parse.exp: Test them lightly.
* buildrun.cxx (run_make_cmd): Use "--no-print-directory"
  rather than ">/dev/null" in kbuild invocations.  Pass
  '-a' and '-B' flags along.
* hash.cxx (find_script_hash): Add them.
* NEWS, stap.1.in: Mention this.

1 files changed, 1 insertions, 0 deletions

diff --git a/session.h b/session.h
index ea914425..24e6ae80 100644
--- a/session.h
+++ b/session.h
@@ -83,6 +83,7 @@ struct systemtap_session
   std::vector<std::string> include_path;
   std::vector<std::string> macros;
   std::vector<std::string> args;
+  std::vector<std::string> kbuildflags;
   std::string kernel_release;
   std::string kernel_base_release;
   std::string kernel_build_tree;