From f65339e0f1b9ccfc0c92c85f68bb2e72ea48a27b Mon Sep 17 00:00:00 2001 From: Sebastian Redl Date: Fri, 6 Aug 2010 00:35:11 +0000 Subject: Add an environment variable that makes libclang use chaining for PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110414 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Frontend/ASTUnit.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'lib/Frontend/ASTUnit.cpp') diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp index 7c15d82d3b..88c55a885a 100644 --- a/lib/Frontend/ASTUnit.cpp +++ b/lib/Frontend/ASTUnit.cpp @@ -848,7 +848,9 @@ llvm::MemoryBuffer *ASTUnit::BuildPrecompiledPreamble() { // 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(); -- cgit v1.2.3-18-g5258