diff options
Diffstat (limited to 'lib/Frontend/ASTUnit.cpp')
| -rw-r--r-- | lib/Frontend/ASTUnit.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
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(); |