Ninja: don't use shell when cmake is called directly

When linking with cmake and vs_link_* the command line
could be too long for cmd.exe, which needs not to be
called in this case. (was not cached by a test)

Introduce rules which don't use the shell and use this
rule when there are no pre or post step.

For free we get a small speedup, because cmd is then
not called.

Also be more accurate when estimating the
command line length.

1 files changed, 1 insertions, 1 deletions

diff --git a/Source/cmNinjaNormalTargetGenerator.h b/Source/cmNinjaNormalTargetGenerator.h
index 1ef9567..299b3e1 100644
--- a/Source/cmNinjaNormalTargetGenerator.h
+++ b/Source/cmNinjaNormalTargetGenerator.h
@@ -30,7 +30,7 @@ private:
   std::string LanguageLinkerRule() const;
   const char* GetVisibleTypeName() const;
   void WriteLanguagesRules();
-  void WriteLinkRule(bool useResponseFile);
+  void WriteLinkRule(const std::string& postfix = "");
   void WriteLinkStatement();
   void WriteObjectLibStatement();
   std::vector<std::string> ComputeLinkCmd();