Hi, Ben, long time no see!
config.sub canonicalizes x86_64-linux-gnu to x86_64-pc-linux-gnu:
# We use `pc' rather than `unknown'
# because (1) that's what they normally are, and
# (2) the word "unknown" tends to confuse beginning users.
i*86 | x86_64)
basic_machine=$basic_machine-pc
but config.guess still guesses x86_64-unknown-linux-gnu:
x86_64:Linux:*:*)
echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
This causes a minor issue when say gcc is configured with
--target=x86_64-linux-gnu: build and host will be guessed with -unknown,
but the target will be canonicalized to -pc-, a different string, which
in turn has the effect of disabling bootstrap.
Maybe that's what it should do whenever --target is explicitly
specified, following autoconf 2.5x guidelines, but so far it doesn't,
and then this accidental difference ends up making
--target=x86_64-linux-gnu natives different from any other
--target=*-linux-gnu native.
Anyway, how about changing config.guess to match config.sub, like this?
diff --git a/config.guess b/config.guess
index f7eb141..2300e28 100755
--- a/config.guess
+++ b/config.guess
@@ -1038,7 +1038,7 @@ EOF
echo ${UNAME_MACHINE}-dec-linux-${LIBC}
exit ;;
x86_64:Linux:*:*)
- echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+ echo ${UNAME_MACHINE}-pc-linux-${LIBC}
exit ;;
xtensa*:Linux:*:*)
echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
Thanks,
--
Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/ FSF Latin America board member
Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer
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