Export the ASTBuilder class from the AST module.
llvm-svn: 39095
diff --git a/clang/Lex/MacroExpander.cpp b/clang/Lex/MacroExpander.cpp
index a7a645d..f51c308f 100644
--- a/clang/Lex/MacroExpander.cpp
+++ b/clang/Lex/MacroExpander.cpp
@@ -523,6 +523,7 @@
// Allocate space for the result token. This is guaranteed to be enough for
// the two tokens and a null terminator.
+ // FIXME: Use a smallvector here.
char *Buffer = (char*)alloca(Tok.getLength() + RHS.getLength() + 1);
// Get the spelling of the LHS token in Buffer.