unrecognized option `-malign-double' on MinGW

gistfile1.txt

$ make
[  1%] Performing download step (verify and extract) for 'LUAJIT'
-- verifying file...
     file='C:/MinGW/msys/1.0/home/hnakamur/xming/lev/tarballs/LuaJIT-2.0.0-beta10.tar.gz'
-- verifying file... done
-- extracting...
     src='C:/MinGW/msys/1.0/home/hnakamur/xming/lev/tarballs/LuaJIT-2.0.0-beta10.tar.gz'
     dst='C:/Users/hnakamur/AppData/Local/Temp/lev/LUAJIT-prefix/src/LUAJIT'
-- extracting... [tar xfz]
-- extracting... [analysis]
-- extracting... [rename]
-- extracting... [clean up]
-- extracting... done
[  1%] Performing AddCmake step for 'LUAJIT'
[  2%] No patch step for 'LUAJIT'
[  3%] No update step for 'LUAJIT'
[  4%] Performing configure step for 'LUAJIT'
-- The C compiler identification is GNU 4.7.0
-- The CXX compiler identification is GNU 4.7.0
-- Check for working C compiler: C:/MinGW/bin/gcc.exe
-- Check for working C compiler: C:/MinGW/bin/gcc.exe -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: C:/MinGW/bin/g++.exe
-- Check for working CXX compiler: C:/MinGW/bin/g++.exe -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- The ASM-ATT compiler identification is GNU
-- Found assembler: C:/MinGW/bin/as.exe
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    LUAJIT_INCLUDE_DIR
    LUAJIT_LIBRARIES


-- Build files have been written to: C:/Users/hnakamur/AppData/Local/Temp/lev/LUAJIT-prefix/src/LUAJIT
[  5%] Performing build step for 'LUAJIT'
Scanning dependencies of target buildvm
[  1%] Building C object CMakeFiles/buildvm.dir/src/buildvm.c.obj
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[  7%] Building C object CMakeFiles/buildvm.dir/src/buildvm_peobj.c.obj
Linking C executable buildvm.exe
[  7%] Built target buildvm
[  8%] Generating lj_recdef.h
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Scanning dependencies of target luajit-lib
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c:\MinGW\bin\as.exe: unrecognized option `-malign-double'
make[5]: *** [CMakeFiles/luajit-lib.dir/lj_vm.s.obj] Error 1
make[4]: *** [CMakeFiles/luajit-lib.dir/all] Error 2
make[3]: *** [all] Error 2
make[2]: *** [LUAJIT-prefix/src/LUAJIT-stamp/LUAJIT-build] Error 2
make[1]: *** [CMakeFiles/LUAJIT.dir/all] Error 2
make: *** [all] Error 2

I found the man for -malign-double http://linux.die.net/man/1/g++

I use Windows 7 Home Edition 32bit.

$ uname -a
MINGW32_NT-6.1 SUNSHINE4PC 1.0.17(0.48/3/2) 2011-04-24 23:39 i686 Msys