various changes to get GCC 10 to build here.

- fix path to compiler-specific includes
- missing (void) for (older) C
- fix __is_signed/__is_signed_val change
- avoid compiler warning-as-errors
- add

various changes to get GCC 10 to build here.

- fix path to compiler-specific includes
- missing (void) for (older) C
- fix __is_signed/__is_signed_val change
- avoid compiler warning-as-errors
- add to existing COPTS.file values, instead of setting
- bump libgomp minor; functions were added
- add new 'compare' c++ header
- handle new analyzer subdirectory. set TARGET_MACHINE for lto-streamer-in.c.
remove params.list etc handling.
- coroutines.cc is another .cc not .c. adjust .PATH to suit.
- add new lto1 sources
- couple of files not in /arch/ subdirs missed in mknative update.

rs6000.c is still not merged.

show more ...

port over 3 changes made here in the GCC 4.5 tree that we'll need
when GCC 4.8 becomes "gcc.old" eventually.

this tree still needs to be tested for more, but this should be the
bulk of the work.

--

port over 3 changes made here in the GCC 4.5 tree that we'll need
when GCC 4.8 becomes "gcc.old" eventually.

this tree still needs to be tested for more, but this should be the
bulk of the work.

----
Log Message:
prepare for moving GCC 4.5 into gcc.old:

- convert to using ${EXTERNAL_GCC_SUBDIR}
- define base-external-gpl3-gcc* subdir as GCC_SUBDIR
- use <bsd.init.mk> over <bsd.own.mk> for a bunch of places; mostly
because it arranges for ../Makefile.inc to be included earlier, and
don't bother including the latter if the former is already included.
- move all .PATH: settings after <bsd.{own,lib}.mk> so that all
valid variables are set before it is evaluated
- rename mknative-gcc* to match their subdir name.

XXX the relationship between the Makefile.inc/Makefile.gcc_path files
is kind of sketchy, it would be great if this was fixed.

----
Log Message:
oops, avoid re-setting DIST to something that might be wrong now.

----
Log Message:
fix another dated DIST.

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For HAVE_LIBGCC_EH=no, skip libgcc's unwind code.

Get GCC 4.8 closer to build with "USE_SSP" set to "yes".

merge GCC 4.8 build.

prepare for moving GCC 4.5 into gcc.old:

- convert to using ${EXTERNAL_GCC_SUBDIR}
- define base-external-gpl3-gcc* subdir as GCC_SUBDIR
- use <bsd.init.mk> over <bsd.own.mk> for a bunch of places;

prepare for moving GCC 4.5 into gcc.old:

- convert to using ${EXTERNAL_GCC_SUBDIR}
- define base-external-gpl3-gcc* subdir as GCC_SUBDIR
- use <bsd.init.mk> over <bsd.own.mk> for a bunch of places; mostly
because it arranges for ../Makefile.inc to be included earlier, and
don't bother including the latter if the former is already included.
- move all .PATH: settings after <bsd.{own,lib}.mk> so that all
valid variables are set before it is evaluated
- rename mknative-gcc* to match their subdir name.

XXX the relationship between the Makefile.inc/Makefile.gcc_path files
is kind of sketchy, it would be great if this was fixed.

show more ...

Deal with LIB2_EHASM

do not build profiling versions of libgcc or libgcc_eh.
they are not used, and they don't build on arm with gcc 4.5.

obsolete libgcc_pic and friends. all libgcc's are supposed to be pic
for platforms with shlibs already (and are.)

this obsoletes our hacks for the libgcc specs to use libgcc_pic, and
fixes a couple

obsolete libgcc_pic and friends. all libgcc's are supposed to be pic
for platforms with shlibs already (and are.)

this obsoletes our hacks for the libgcc specs to use libgcc_pic, and
fixes a couple of other issues reported to me directly.

show more ...

clean out some unused code.

*sigh* move these files into the directories i meant for them to exist in.
start actually porting to gcc 4.5 in the process.