[cfe-commits] r110414 - /cfe/trunk/lib/Frontend/ASTUnit.cpp

[Sebastian Redl]

Author: cornedbee
Date: Thu Aug  5 19:35:11 2010
New Revision: 110414

URL: http://llvm.org/viewvc/llvm-project?rev=110414&view=rev
Log:
Add an environment variable that makes libclang use chaining for PCH.

Modified:
    cfe/trunk/lib/Frontend/ASTUnit.cpp

Modified: cfe/trunk/lib/Frontend/ASTUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/ASTUnit.cpp?rev=110414&r1=110413&r2=110414&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/ASTUnit.cpp (original)
+++ cfe/trunk/lib/Frontend/ASTUnit.cpp Thu Aug  5 19:35:11 2010
@@ -848,7 +848,9 @@
   
   // Tell the compiler invocation to generate a temporary precompiled header.
   FrontendOpts.ProgramAction = frontend::GeneratePCH;
-  // FIXME: Set ChainedPCH, once it is ready.
+  // FIXME: Set ChainedPCH unconditionally, once it is ready.
+  if (::getenv("LIBCLANG_CHAINING"))
+    FrontendOpts.ChainedPCH = true;
   // FIXME: Generate the precompiled header into memory?
   FrontendOpts.OutputFile = GetPreamblePCHPath();