Fix a file overwrite bug in llvm-ar introduced by changes to

createTemporaryFile semantics where it doesn't create a fully unique name
if the basename doesn't exist. This functionality is now optionally
provided by the boolean reuse_current parameter to createTemporaryFile and
makeUnique. The default values differ because of the way these functions
are used in LLVM.

llvm-svn: 18961

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/include/llvm/System/Path.h b/llvm/include/llvm/System/Path.h
index 0e757f5c4e1..5be47b21bac 100644
--- a/llvm/include/llvm/System/Path.h
+++ b/llvm/include/llvm/System/Path.h
@@ -494,7 +494,7 @@ namespace sys {
       /// already unique. 
       /// @throws std::string if an unrecoverable error occurs.
       /// @brief Make the current path name unique in the file system.
-      void makeUnique();
+      void makeUnique( bool reuse_current = true );
 
       /// This method attempts to create a directory in the file system with the
       /// same name as the Path object. The \p create_parents parameter controls
@@ -529,7 +529,7 @@ namespace sys {
       /// the newly generated temporary file name is unique in the file system.
       /// @throws std::string if there is an error
       /// @brief Create a unique temporary file
-      bool createTemporaryFile();
+      bool createTemporaryFile(bool reuse_current = false);
 
       /// This method attempts to destroy the directory named by the last in 
       /// the Path name.  If \p remove_contents is false, an attempt will be