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Re: PATCH RFA: Use $(COMPILER) to build objects

Ralf Wildenhues <> writes:

> * Ian Lance Taylor wrote on Thu, May 21, 2009 at 07:54:24AM CEST:
>> 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).
> FWIW, I don't see any problems with this patch (I cannot approve it),
> but this scheme will probably not extend cleanly over to Automake-
> generated makefiles.  That may not be a problem for GCC at all, I just
> thought I'd mention it.

Automake permits you to override the .c.o target.  You're right that we
can't take full advantage of automake if we name C++ files with a .c
extension, but I think that is OK for the foreseeable future.


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