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root@mail:/tmp/glibc-2.3.2# ./configure
configure: error: you must configure in a separate build directory
root@mail:/tmp/glibc-2.3.2# cd ..
root@mail:/tmp# mkdir glibc-build
root@mail:/tmp# cd glibc-build/
root@mail:/tmp/glibc-build# ../glibc-2.3.2/configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking sysdep dirs... sysdeps/i386/elf sysdeps/unix/sysv/linux/i386 sysdeps/unix/sysv/linux sysdeps/gnu sysdeps/unix/common sysdeps/unix/mman sysdeps/unix/inet sysdeps/unix/sysv/i386 sysdeps/unix/sysv sysdeps/unix/i386 sysdeps/unix sysdeps/posix sysdeps/i386/i686/fpu sysdeps/i386/i686 sysdeps/i386/i486 sysdeps/i386/fpu sysdeps/i386 sysdeps/wordsize-32 sysdeps/ieee754/ldbl-96 sysdeps/ieee754/dbl-64 sysdeps/ieee754/flt-32 sysdeps/ieee754 sysdeps/generic/elf sysdeps/generic
checking for a BSD-compatible install... /usr/local/bin/install -c
checking whether ln -s works... yes
checking for pwd... /usr/local/bin/pwd
checking for gcc... gcc
[...]
checking for long double... yes
checking size of long double... configure: error: cannot compute sizeof (long double), 77
See `config.log' for more details.
root@mail:/tmp/glibc-build#
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what to do??