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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/53112] Fails at Configuring stage 1 in sparc64-sun-solaris2.10/libgcc: error: cannot compute suffix of object files: cannot compile
Date: Mon, 30 Apr 2012 11:51:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53112

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-04-30 11:51:06 UTC ---
(In reply to comment #4)
> Sorry buddy, I have removed past code and setup the fresh code.
> 
> This time have build 64 bit gmp and mpfr with ABI=64 @ --prefix path
> /usr/local/ and tried to build gcc in 64 bit. but it gave this error ELFCLASS64
> for libmpfr.so and libgmp.so

Don't do that.

GCC 4.4 always builds a 32-bit binary on Solaris, so it needs 32-bit GMP and
MPFR libs.

But if you follow the instructions at http://gcc.gnu.org/wiki/InstallingGCC
then you don't need to install GMP and MPFR anyway, GCC will automatically buil
them correctly for you.