Building SWI-Prolog on MinGW32: fail to build "swipl.exe"

I'm trying to build "pl-6.4.1" under "mingw32" (mingw-20120426, gcc-4.7.2, ...).

The build command sequence is:

cd pl-6.4.1
export CIFLAGS="-I/mingw/include"
export LDFLAGS="-L/mingw/lib"
./configure --prefix=/mingw --disable-readline --disable-libdirversion --enable-static --disable-shared
make 2>&1 | tee build.log

At the end I always get some linker errors (see log file attached):

gcc -c -I. -I. -I./rc -Wall -O2 -I/mingw/include -fno-strict-aliasing -D__WINDOWS__ -DWIN32  pl-main.c -o pl-main.o
gcc -L/mingw/lib  -Wl,--stack,4000000 -o swipl.exe pl-main.o -L../lib/i386-win32 -lswipl -lgmp -lws2_32 -lm -lpthreadGC2 -lwsock32 -lwinmm -lshell32  ../lib/i386-win32/libuxnt.a
../lib/i386-win32/libswipl.a(pl-atom.o):pl-atom.c:(.text+0x1140): undefined reference to `__sync_add_and_fetch_4'
../lib/i386-win32/libswipl.a(pl-atom.o):pl-atom.c:(.text+0x14f7): undefined reference to `__sync_add_and_fetch_4'
../lib/i386-win32/libswipl.a(pl-atom.o):pl-atom.c:(.text+0x1d26): undefined reference to `__sync_add_and_fetch_4'
../lib/i386-win32/libswipl.a(pl-atom.o):pl-atom.c:(.text+0x1d8d): undefined reference to `__sync_bool_compare_and_swap_4'
../lib/i386-win32/libswipl.a(pl-atom.o):pl-atom.c:(.text+0x1dd3): undefined reference to `__sync_sub_and_fetch_4'

So "libswipl.a", "libuxnt.a", "plterm.dll(.a)" are build, but "swipl.exe" is not build.

Any help would be appreciated!

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