Ada cross-compilation gcc-4.8.1

Ada cross-compilation gcc-4.8.1

[Alexey Pavlov]

Hi!
I try to build native Mingw-w64 32-bit Win32 multilib toolchain under
Arch Linux.
I built GCC-4.8.1 cross-compiler fine.
But when building native compiler from cross I have error:

make[2]: Entering directory `/home/alexx/work32/mingw32-gcc/gnattools'
# gnattools1-re
make -C ../gcc/ada/tools -f ../Makefile \
  "CC=i686-w64-mingw32-gcc" "CFLAGS=-g -O2 -D__USE_MINGW_ACCESS -W
-Wall" "LDFLAGS=-static-libstdc++ -static-libgcc -Wl,--stack,12582912"
"ADAFLAGS=-gnatpg -gnata" "ADA_CFLAGS=" "INCLUDES=-I. -I.. -I../..
-I/home/alexx/src/gcc-4.8.1/gcc/ada
-I/home/alexx/src/gcc-4.8.1/gcc/config
-I/home/alexx/src/gcc-4.8.1/gcc/../include
-I/home/alexx/src/gcc-4.8.1/gcc"
"ADA_INCLUDES=-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/../adainclude
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/ -I.
-I/home/alexx/src/gcc-4.8.1/gcc/ada" "exeext=.exe"
"fsrcdir=/home/alexx/src/gcc-4.8.1/gcc"
"srcdir=/home/alexx/src/gcc-4.8.1/gcc" "GNATMAKE=gnatmake"
"GNATLINK=gnatlink" "GNATBIND=gnatbind" "TOOLSCASE=cross" "LIBGNAT="
INCLUDES="" \
  gnatmake-re gnatlink-re
make[3]: Entering directory `/home/alexx/work32/mingw32-gcc/gcc/ada/tools'
gnatmake -j0 -I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/../adainclude
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/ -I.
-I/home/alexx/src/gcc-4.8.1/gcc/ada -u sdefault
--GCC="i686-w64-mingw32-gcc "
gnatmake: objects up to date.
gnatmake -j0 -c
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/../adainclude
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/ -I.
-I/home/alexx/src/gcc-4.8.1/gcc/ada gnatmake
--GCC="i686-w64-mingw32-gcc -g -O2 -D__USE_MINGW_ACCESS -W -Wall
-gnatpg -gnata"
i686-w64-mingw32-gcc -c -I./
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/../adainclude
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/ -I.
-I/home/alexx/src/gcc-4.8.1/gcc/ada -g -O2 -D__USE_MINGW_ACCESS -W
-Wall -gnatpg -gnata -I- /home/alexx/src/gcc-4.8.1/gcc/ada/osint.adb
i686-w64-mingw32-gcc -c -I./
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/../adainclude
-I/usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.1/adalib/ -I.
-I/home/alexx/src/gcc-4.8.1/gcc/ada -g -O2 -D__USE_MINGW_ACCESS -W
-Wall -gnatpg -gnata -I- /home/alexx/src/gcc-4.8.1/gcc/ada/prj.adb
osint.adb:3182:07: warning: types for unchecked conversion have different sizes
gnatmake: "/home/alexx/src/gcc-4.8.1/gcc/ada/osint.adb" compilation error
make[3]: *** [gnatmake-re] Error 4
make[3]: Leaving directory `/home/alexx/work32/mingw32-gcc/gcc/ada/tools'
make[2]: *** [gnattools-cross] Error 2
make[2]: Leaving directory `/home/alexx/work32/mingw32-gcc/gnattools'
make[1]: *** [all-gnattools] Error 2
make[1]: Leaving directory `/home/alexx/work32/mingw32-gcc'
make: *** [all] Error 2


Does anyone see this error and how I can fix it?

Regards,
Alexey.