cannot install packages on octave-3.8.1rc3

[Tatsuro MATSUOKA]

Hello

I have installed octave-3.8.1rc3 binary on 
http://mxeoctave.osuv.de/3.8.1-RC/

I have tried install octave-forge package executing build_packages.m at 
C:\octave\Octave-3.8.1-rc3\src

I have met install error in the first package (general package).
So I tried 
pkg install general-1.3.2.tar.gz -verbose

**********************************************************************
octave:3> pkg install general-1.3.2.tar.gz -verbose
mkdir (C:\Users\Tatsu\AppData\Local\Temp\oct-45)
untar (general-1.3.2.tar.gz, C:\Users\Tatsu\AppData\Local\Temp\oct-45)
make: Entering directory `/tmp/oct-45/general/src'
C:/octave/Octave-3.8.1-rc3/bin/mkoctfile-3.8.1-rc3.exe SHA1.cc
c:/octave/octave-3.8.1-rc3/bin/../lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld.exe:
 cannot find -lgcc_s
c:/octave/octave-3.8.1-rc3/bin/../lib/gcc/i686-w64-mingw32/4.8.2/../../../../i686-w64-mingw32/bin/ld.exe:
 cannot find -lgcc_s
collect2.exe: error: ld returned 1 exit status
make: *** [SHA1.oct] Error 1
make: Leaving directory `/tmp/oct-45/general/src'

pkg: error running `make' for the general package.
error: called from 'configure_make' in file 
C:\octave\Octave-3.8.1-rc3\share\octave\3.8.1-rc3\m\pkg\private\configure_make.m
 near line 82, column 9
error: called from:
error:   
C:\octave\Octave-3.8.1-rc3\share\octave\3.8.1-rc3\m\pkg\private\install.m at 
line 199, column 5
error:   C:\octave\Octave-3.8.1-rc3\share\octave\3.8.1-rc3\m\pkg\pkg.m at line 
394, column 9
*******************************************************

Any suggestions?

Regards

Tatsuro