Failure in a complete build of current snapshot

[Angelo Graziosi <angelo dot graziosi at alice dot it>]

Trying to build gcc-4.5-20090723 on Cygwin 1.5, configuring with:

${gcc_dir}/configure --prefix="${prefix_dir}" \
        --exec-prefix="${eprefix_dir}" \
	--sysconfdir="${sysconf_dir}" \
	--libdir="${lib_dir}" \
	--libexecdir="${libexec_dir}" \
	--mandir="${man_dir}" \
	--infodir="${info_dir}" \
	--program-suffix="${suffix}" \
	--enable-bootstrap \
	--enable-checking=release \
	--enable-decimal-float=bid \
	--enable-languages=c,c++,fortran \
	--enable-libgomp \
	--enable-libssp \
	--enable-nls \
	--enable-threads=posix \
	--enable-version-specific-runtime-libs \
	--disable-fixed-point \
	--disable-libmudflap \
	--disable-shared \
	--disable-sjlj-exceptions \
	--disable-win32-registry \
	--with-arch=i686 \
	--with-dwarf2 \
	--with-system-zlib \
	--with-tune=generic \
        --without-included-gettext \
	--without-x,

after a successful 'make -j4', it fails in:

   make -j4 DESTDIR=${dest_dir} install

with:

[...]
make[4]: Nothing to be done for `install-exec-am'.
test -z "/usr/local/gfortran/share/gcc-4.5.0/python" || mkdir -p -- 
"/tmp/inst/usr/local/gfortran/share/gcc-4.5.0/python"
/bin/sh: line 0: cd: /usr/local/gfortran/lib/gcc/i686-pc-cygwin/4.5.0: 
No such file or directory
 /usr/bin/install -c -m 644 gdb.py 
/tmp/inst/usr/local/gfortran/lib/gcc/i686-pc-cygwin/4.5.0/libstdc++*-gdb.py
/usr/bin/install: impossibile creare il file normale 
`/tmp/inst/usr/local/gfortran/lib/gcc/i686-pc-cygwin/4.5.0/libstdc++*-gdb.py': 
No such file or directory
make[4]: *** [install-data-local] Error 1
make[4]: *** Waiting for unfinished jobs....
 /tmp/gcc-4.5-20090723/install-sh -c -m 644 
'/tmp/gcc-4.5-20090723/libstdc++-v3/python/libstdcxx/v6/printers.py' 
'/tmp/inst/usr/local/gfortran/share/gcc-4.5.0/python/libstdcxx/v6/printers.py'
 /tmp/gcc-4.5-20090723/install-sh -c -m 644 
'/tmp/gcc-4.5-20090723/libstdc++-v3/python/libstdcxx/v6/__init__.py' 
'/tmp/inst/usr/local/gfortran/share/gcc-4.5.0/python/libstdcxx/v6/__init__.py'
 /tmp/gcc-4.5-20090723/install-sh -c -m 644 
'/tmp/gcc-4.5-20090723/libstdc++-v3/python/libstdcxx/__init__.py' 
'/tmp/inst/usr/local/gfortran/share/gcc-4.5.0/python/libstdcxx/__init__.py'
make[4]: Leaving directory `/tmp/build/i686-pc-cygwin/libstdc++-v3/python'
make[3]: *** [install-am] Error 2
make[3]: Leaving directory `/tmp/build/i686-pc-cygwin/libstdc++-v3/python'
make[2]: *** [install-recursive] Error 1
make[2]: Leaving directory `/tmp/build/i686-pc-cygwin/libstdc++-v3'
make[1]: *** [install-target-libstdc++-v3] Error 2
make[1]: Leaving directory `/tmp/build'
make: *** [install] Error 2

Could this be related to the usage of DESTDIR? (Even if Bug #40286 [1]
seems to be fixed...)

Cheers,
   Angelo.

---
[1] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40286