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Re: PATCH RFA: Use $(COMPILER) to build objects
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Ian Lance Taylor <iant at google dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 21 May 2009 12:06:21 +0000 (UTC)
- Subject: Re: PATCH RFA: Use $(COMPILER) to build objects
- References: <m3my97xapb.fsf@google.com>
On Wed, 20 May 2009, Ian Lance Taylor wrote:
> This is a preliminary step toward supporting a configure option to build
> gcc using either a C compiler or a C++ compiler. I think it would lead
> to long term confusion to use $(CC) in a Makefile to represent a C++
> compiler. This patch instead arranges to compile all code using
> $(COMPILER). CFLAGS changes to COMPILER_FLAGS and ALL_CFLAGS changes to
> ALL_COMPILERFLAGS. The COMPILER make variable is currently always set
> to $(CC); my intent is that in the future, a configure option will
> permit it to be set to either $(CC) or $(CXX).
>
> This is a mechanical patch. I'm sure there will be some details to
> clean up when we are ready to optionally set COMPILER to $(CXX).
In particular, I believe the command for compiling should be separated
from the command used for linking, so that --with-host-libstdcxx will
cause linking with the C compiler. (There is no -static-libstdc++ option
so you can't readily make the C++ compiler link with static libstdc++ when
desired.)
--
Joseph S. Myers
joseph@codesourcery.com