Re: PR/17383: fix gcc in-srcdir build (take 2)

[neroden@twcny.rr.com (Nathanael Nerode)]

I've been wanting to do this for yonks.  Approved for mainline, unless DJ or
Alex objects.  Give them a day or two.

However, it *will* be somewhat confusing for developers that the location
of the build has moved; please post an announcement to gcc@gcc.gnu.org if
this goes in, explaining the new presence of host-i686-pc-linux-gnu, etc.
 
2005-05-25  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/17383
        * Makefile.def (target_modules): Remove "stage", now unnecessary.
        * Makefile.tpl (HOST_SUBDIR): New substitution.
        (STAGE_HOST_EXPORTS, EXPECT, HOST_LIB_PATH, USUAL_AR_FOR_TARGET,
        USUAL_AS_FOR_TARGET, USUAL_DLLTOOL_FOR_TARGET, USUAL_GCC_FOR_TARGET,
        USUAL_LD_FOR_TARGET, USUAL_NM_FOR_TARGET, USUAL_OBJDUMP_FOR_TARGET,
        USUAL_RANLIB_FOR_TARGET, USUAL_WINDRES_FOR_TARGET): Use it.
        (Host modules, Bootstrapped modules): Use it.
        (Build modules, Target modules): Do not create symlink trees,
        always configure out-of-srcdir.
        (distclean): Try removing $(host_subdir) with rm before using rm -rf.
        * configure.in (FLAGS_FOR_TARGET, CC_FOR_TARGET, GCJ_FOR_TARGET,
        GFORTRAN_FOR_TARGET, CXX_FOR_TARGET, RAW_CXX_FOR_TARGET): Use
        $(HOST_SUBDIR).  Create a symlink for host_subdir.

        * Makefile.in: Regenerate.
        * configure: Regenerate.

config:
2005-05-25  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/17383
        * config/acx.m4 (GCC_TOPLEV_SUBDIRS): Set HOST_SUBDIR if an in-src
        gcc build is going.

gcc:
2005-05-25  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/17383
        * gcc/Makefile.in (host_subdir): New.
        (build_objdir): New.  Replace ../$(build_subdir) with it throughout.
        * gcc/configure: Regenerate.

libjava:
2005-05-25  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/17383
        * configure.ac: Call GCC_TOPLEV_SUBDIRS.
        (COMPPATH): Removed.
        (ZIP, GCJH): Replace it with ../$(host_subdir).
        (built_gcc_dir): Add $(host_subdir).
        * configure: Regenerate.
        * Makefile.in, include/Makefile.in, testsuite/Makefile.in,
        external/Makefile.in, external/sax/Makefile.in,
        external/w3c_dom/Makefile.in: Regenerate.

libobjc:
2005-05-25  Paolo Bonzini  <bonzini@gnu.org>

        PR bootstrap/17383
        * configure.ac: Call GCC_TOPLEV_SUBDIRS.
        (Determine CFLAGS for gthread): Use $host_subdir.
        * configure: Regenerate.
        * Makefile.in (host_subdir): New.
        (INCLUDES): Use it.

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