On 12/19/2018 5:33 AM, Rainer Orth wrote:
Hi Karl,
I've just investigated a GCC bug report about a comparison failure on
Solaris/SPARC:
PR target/88535
sparcv9 gcc 7 causes comparison failure in sparc gcc 8 dwarf2out.o
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
where config.guess failed to notice that the build compiler was
64-bit-default, while the host/target was 32-bit-default.
This doesn't happen with the config.guess/config.sub currently bundled
with gcc mainline (2018-06-26 resp. 2018-07-03) where with a
64-bit-default gcc x86_64-pc-solaris2.11 is determined, while with
CC='gcc -m32' I get i386-pc-solaris2.11 just as expected.
The proper use of configure can help eliminate the need for config.guess
and config.sub to interfere here. Use --build and --host as
appropriate; and at times you'll need --target depending on what you're
building.
--
Earnie
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