not able to install psych under cygwin

libyaml

/cygwin/git/yaml-0.1.4
$ make install
Making install in include
make[1]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/include'
make[2]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/include'
make[2]: Nothing to be done for `install-exec-am'.
test -z "/usr/local/include" || /usr/bin/mkdir -p "/usr/local/include"
 /usr/bin/install -c -m 644  yaml.h '/usr/local/include/.'
make[2]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/include'
make[1]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/include'
Making install in src
make[1]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/src'
make[2]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/src'
test -z "/usr/local/lib" || /usr/bin/mkdir -p "/usr/local/lib"
 /bin/sh ../libtool   --mode=install /usr/bin/install -c   libyaml.la '/usr/local/lib'
libtool: install: /usr/bin/install -c .libs/libyaml.lai /usr/local/lib/libyaml.la
libtool: install: /usr/bin/install -c .libs/libyaml.a /usr/local/lib/libyaml.a
libtool: install: chmod 644 /usr/local/lib/libyaml.a
libtool: install: ranlib /usr/local/lib/libyaml.a
----------------------------------------------------------------------
Libraries have been installed in:
   /usr/local/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-LLIBDIR' linker flag

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/src'
make[1]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/src'
Making install in .
make[1]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4'
make[2]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4'
make[2]: Nothing to be done for `install-exec-am'.
test -z "/usr/local/lib/pkgconfig" || /usr/bin/mkdir -p "/usr/local/lib/pkgconfig"
 /usr/bin/install -c -m 644 yaml-0.1.pc '/usr/local/lib/pkgconfig'
make[2]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4'
make[1]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4'
Making install in tests
make[1]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/tests'
make[2]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/tests'
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/tests'
make[1]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/tests'
Making install in win32
make[1]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/win32'
make[2]: Entering directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/win32'
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/win32'
make[1]: Leaving directory `/cygdrive/f/backup/cygwin/git/yaml-0.1.4/win32'