[Lldb-commits] [review request] move cxa_demangle.cpp to another directory to avoid gcc/rtti errors

Malea, Daniel daniel.malea at intel.com
Wed Dec 5 15:13:33 PST 2012

Hi all,

As I'm trying to fix the gcc build, I ran into some trouble with source/Core/cxa_demangle.cpp: as it uses dynamic_cast<>, gcc complains if it is compiled with -fno-rtti.

I'm afraid I couldn't find any (non-hacky) way to change the compile flags for just that one file. I see two ways to fix the problem "correctly":

1. Define REQUIRES_RTTI = 1 in source/Core/Makefile, thereby compiling many more files with -rtti than actually need it. It fixes the build, but is not ideal.

2. Move cxa_demangle.cpp to another directory (I propose "source/Demangle" thereby creating a new static library "liblldbDemangle.a") and set the required RTTI options for just that one directory.

What does the mailing list think? The attached patch implements option 2 above, and also fixes lib/Makefile to correctly include libclangRewriteCore.a and libclangRewriteFrontend.a as those are apparently required...


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