libstdc++-v3 fails to configure

[Mathias Froehlich]

I have found that a bootstrap of the current CVS tree of gcc fails to
configure libstdc++-v3. I use 

CC="gcc" CFLAGS="-O3" CXX="g++" CXXFLAGS="-O3" LDFLAGS="-L/sw/lib -R/sw/lib" \
./configure --prefix=/sw/sun4_57/gcc-X.X --host=sparc-sun-solaris2.7 \
   --enable-version-specific-runtime-libs --enable-libstdcxx-v3 \
   --enable-languages=c,c++,f77 --bindir=/tmp/gcc-snap/bin \
   --infodir=/tmp/gcc-snap/info --mandir=/tmp/gcc-snap/man

to configure the gcc tree.
If I do a 

 make bootstrap

everyting bootstraps fine except libstdc++ is not built. The output
from make bootstrap looks like that:

[...]
gmake[4]: Leaving directory `/tmp/egcs/sparc-sun-solaris2.7/sparcv9/libiberty'
gmake[3]: Leaving directory `/tmp/egcs/sparc-sun-solaris2.7/libiberty'
gmake[2]: Leaving directory `/tmp/egcs/sparc-sun-solaris2.7/libiberty'
Configuring in sparc-sun-solaris2.7/libstdc++-v3
ChangeLog               ..linked
Makefile.am             ..linked
Makefile.in             ..linked
README          ..linked
[...]
ostream_inserter_other.cc               ..linked
ostream_manip.cc                ..linked
ostream_unformatted.cc          ..linked
streambuf.cc            ..linked
stringbuf.cc            ..linked
stringstream.cc         ..linked
ext             ..working in
headers.cc              ..linked
printnow.c              ..linked
creating cache ./config.cache
configure: error: can not find install-sh or install.sh in .. ./..

   Many thanks in advance,

    Mathias Froehlich

-- 
Mathias Fr"ohlich              e-mail: frohlich@na.uni-tuebingen.de
Institut f"ur Mathematik, Universit"at T"ubingen, D-72076 T"ubingen