> This is an updated version of Laurent's patch originally here:
>   http://gcc.gnu.org/ml/gcc/2009-06/msg00635.html

Revised version, only 33 files modified now (instead of 51).  We compile the C 
files for the compiler proper (and gnatbind) with the C++ compiler, but we 
keep compiling them with the C compiler in the other cases (library & tools).
I think that this is in keeping with the other compilers (e.g. libgcc is still 
compiled with the C compiler).

Bootstrapped/regtested on x86_64-suse-linux with --enable-build-with-cxx.

Arno, do you have any objections to me applying this?


2011-07-12  Laurent GUERBY  <laurent@guerby.net>
            Eric Botcazou  <ebotcazou@adacore.com>

gcc/
        * prefix.h: Wrap up in extern "C" block.
ada/
        * adadecode.c: Wrap up in extern "C" block.
        * adadecode.h: Likewise.
        * adaint.c: Likewise.  Remove 'const' keyword.
        * adaint.h: Likewise.
        * argv.c: Likewise.
        * atree.h: Likewise.
        * cio.c: Likewise.
        * cstreams.c: Likewise.
        * env.c: Likewise.
        * exit.c: Likewise.
        * fe.h: Likewise.
        * final.c: Likewise.
        * init.c: Likewise.
        * initialize.c: Likewise.
        * link.c: Likewise.
        * namet.h: Likewise.
        * nlists.h: Likewise.
        * raise.c: Likewise.
        * raise.h: Likewise.
        * repinfo.h: Likewise.
        * seh_init.c: Likewise.
        * targext.c: Likewise.
        * tracebak.c: Likewise.
        * uintp.h: Likewise.
        * urealp.h: Likewise.
        * xeinfo.adb: Wrap up generated C code in extern "C" block.
        * xsinfo.adb: Likewise.
        * xsnamest.adb: Likewise.
        * gcc-interface/gadaint.h: Wrap up in extern "C" block.
        * gcc-interface/gigi.h: Wrap up some prototypes in extern "C" block.
        * gcc-interface/misc.c: Likewise.
        * gcc-interface/Make-lang.in (GCC_LINK): Use LINKER.
	(GNAT1_C_OBJS): Remove ada/b_gnat1.o.  List ada/seh_init.o and
	ada/targext.o here...
	(GNAT_ADA_OBJS): ...and not here.
	(GNAT1_ADA_OBJS): Add ada/b_gnat1.o.
	(GNATBIND_OBJS): Reorder.


-- 
Eric Botcazou