Cygwin host failure during configure...

[Silverio Diquigiovanni]

Hi to all,
I have found a problem during configure phase of RTEMS in Cygwin
environment.

I have downloaded and installed last version of Cygwin environment and I
have:

     automake --version <cr>
     autoconf --version <cr>
     perl --version <cr>
     make --version <cr>

     automake = 1.4
     autoconf = 2.13
     perl = 5.6.1
     make = 3.79.1

I have downloaded and installed 4.5.0 RPM tool-chain for Cygwin with :

     rpm -i --nodeps --ignoreos rtems-base-binutils-2.9.5.0.24-1.i386.rpm
<cr>
     rpm -i --nodeps --ignoreos
rtems-base-gcc-gcc2.95.2newlib1.8.2-7.i386.rpm <cr>
     rpm -i --nodeps --ignoreos rtems-base-gdb-4.18-4.i386.rpm <cr>
     rpm -i --nodeps --ignoreos sh-rtems-binutils-2.9.5.0.24-1.i386.rpm <cr>
     rpm -i --nodeps --ignoreos sh-rtems-gcc-gcc2.95.2newlib1.8.2-7.i386.rpm
<cr>
     rpm -i --nodeps --ignoreos sh-rtems-gdb-4.18-4.i386.rpm <cr>

My RTEMS source code is :

     rtems-4.5.0.tgz

I have modified the .bashrc to:

    #
    # RTEMS environment
    #

    # Visibility to egcs binary for sh processors

    export PATH=$PATH:/opt/rtems/bin

This is my directory tree:

/home/SILVERIO_DIQUIGIOVANNI/build/sh-rtems-01/
/home/SILVERIO_DIQUIGIOVANNI/source/rtems-4.5.0/

Then from ..../build/sh-rtems-01/ I have launched the configurator:

../../source/rtems-4.5.0/configure \
    --target=sh-rtems \
    --prefix=/home/SILVERIO_DIQUIGIOVANNI/rtems-4.5.0/sh-rtems-01/ \
    --disable-multiprocessing \
    --disable-posix \
    --disable-itron \
    --disable-networking \
    --disable-rdbg
    --disable-cxx \
    --disable-tests

after few configure steps I obtain :

< start snip from output >

/../../../source/rtems-4.5.0/tools/build
loading cache ../.././config.cache
checking for RTEMS Version... 4.5.0
checking host system type... i386-pc-cygwin32
checking for a BSD compatible install... (cached) /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... (cached) yes
checking for working aclocal... found
checking for working autoconf... found
checking for working automake... found
checking for working autoheader... found
checking for working makeinfo... found
checking whether to enable maintainer-specific portions of Makefiles... no
checking for Cygwin environment... no
checking for mingw32 environment... no
checking for executable suffix... configure: error: installation or
configuration problem: compiler cannot create executables.
configure: error: ../../../../source/rtems-4.5.0/tools/build/configure
failed for tools/build

< end snip from output >

If I launch gcc --version I obtain 2.95.3-5

Someone has some suggestion obout my problem ?
Thank you in advance

Regards,
Silverio Diquigiovanni