[PATCH v2 0/3] gitk: override PATH search only on Windows

Restrict overrides of exec/open to Windows only, as the need for this is Tcl adding the current working directory to $PATH on Windows. Recent modifications to this render gitk unusable on Cygwin, isolating these overrides to Windows only both fixes that breakage andk reduces the liklihood of similar issues in the future.

patch summary:
	1 - modifies the existing code to restrict the overrides
	   to Windows, restoring other platorms to native exec/open.
	2 - remove now superflous variable _search_exe.
	3 - fix the override code to avoid path search given a
	    relative path like foo/bar.

---
Changes since v1 - fixed commit ID reference for git-gui, otherwise
                   improved commit message in patch 1.
		   Added patches 2 and 3.

Mark Levedahl (3):
  gitk: override $PATH search only on Windows
  gitk: _search_exe is no longer needed
  gitk: limit PATH search to bare executable names

 gitk | 147 +++++++++++++++++++++++------------------------------------
 1 file changed, 58 insertions(+), 89 deletions(-)