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New configure bootstrap failure on sparc-sun-solaris2.7

Since Jan 3rd, I am unable to bootstrap on sparc-sun-solaris2.7 due to
various target configure problems.  The latest one I see is this
during target libiberty configure:

 > Running configure in multilib subdir sparcv9
 > pwd: /teal/caip5/ghazi/tmpdisk/gcc-testing/34/build/sparc-sun-solaris2.7
 > mkdir sparcv9
 > expr: Paren problem
 > configure: creating cache ./config.cache
 > [...]
 > checking for cc... cc
 > [...]
 > checking to probe for byte ordering... cc: Warning: option -2 passed
 > to ld
 > /usr/ccs/bin/ld: illegal option -- 2
 > configure: error: unknown endianess - sorry
 > make[1]: *** [configure-target-libiberty] Error 1
 > make[1]: Leaving directory `/teal/tmpdisk/ghazi/gcc-testing/34/build'
 > make: *** [bootstrap] Error 2

Note that it's using my stage1 $CC for the target library.  (I set CC
before I start the bootstrap.)  I'm guessing that the complaint about
"option -2" is really because cc/ld gets "-O2".  This happens even if
it's done serially.

I also noticed a suspicious message "expr: Paren problem".  I don't
know why that happens.  I have /usr/ucb in my path first so I get
/usr/ucb/expr if that matters.  However I'm sure I got this message
before the latest configure hackery, so it's probably unrelated but
worth investigating.

I won't be able to experiment more until later tonight.

Kaveh R. Ghazi

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