ENH: Re-implemented cmGeneratedFileStream to look like a real stream and replace the destination file atomically. This will avoid problems with the process being terminated while generating a file.

1 files changed, 1 insertions, 5 deletions

diff --git a/Source/cmLocalUnixMakefileGenerator.cxx b/Source/cmLocalUnixMakefileGenerator.cxx
index a96dc3c..586bf29 100644
--- a/Source/cmLocalUnixMakefileGenerator.cxx
+++ b/Source/cmLocalUnixMakefileGenerator.cxx
@@ -186,13 +186,9 @@ void cmLocalUnixMakefileGenerator::OutputMakefile(const char* file,
   // Create a stream that writes to a temporary file
   // then does a copy at the end.   This is to allow users
   // to hit control-c during the make of the makefile
-  cmGeneratedFileStream tempFile(file);
-  tempFile.SetAlwaysCopy(true);
-  std::ostream&  fout = tempFile.GetStream();
+  cmGeneratedFileStream fout(file, false);
   if(!fout)
     {
-    cmSystemTools::Error("Error can not open for write: ", file);
-    cmSystemTools::ReportLastSystemError("");
     return;
     }
   fout << "# CMAKE generated Makefile, DO NOT EDIT!\n"