Unable to use bool type in i386.h

[Terry Guo <flameroc@xxxxxxxxx>]

Hi there,

I am using latest trunk code and declared a bool type variable in
i386.h as below:

extern bool mybool;

And then configure gcc as:

../gcc/configure --enable-languages=c,c++ --disable-bootstrap

During the stage of libgcc build, I then ran into following errors:

make[3]: Leaving directory
`/myssd/terguo01/toolchain-build/flash-prefetch/src/gcc-build/i686-pc-linux-gnu/libgcc'
/myssd/terguo01/toolchain-build/flash-prefetch/src/gcc-build/./gcc/xgcc
-B/myssd/terguo01/toolchain-build/flash-prefetch/src/gcc-build/./gcc/
-B/usr/local/i686-pc-linux-gnu/bin/
-B/usr/local/i686-pc-linux-gnu/lib/ -isystem
/usr/local/i686-pc-linux-gnu/include -isystem
/usr/local/i686-pc-linux-gnu/sys-include    -g -O2 -O2  -g -O2
-DIN_GCC    -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include
-fpic -mlong-double-80 -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector   -fpic -mlong-double-80 -I. -I. -I../.././gcc
-I../../../gcc/libgcc -I../../../gcc/libgcc/.
-I../../../gcc/libgcc/../gcc -I../../../gcc/libgcc/../include
-I../../../gcc/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT
-DHAVE_CC_TLS  -DUSE_TLS -o _clear_cache.o -MT _clear_cache.o -MD -MP
-MF _clear_cache.dep -DL_clear_cache -c ../../../gcc/libgcc/libgcc2.c
-fvisibility=hidden -DHIDE_EXPORTS
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
make[2]: *** [_muldi3.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [_negdi2.o] Error 1
make[2]: *** [_ashldi3.o] Error 1
make[2]: *** [_cmpdi2.o] Error 1
make[2]: *** [_lshrdi3.o] Error 1
make[2]: *** [_ashrdi3.o] Error 1
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
In file included from ../.././gcc/tm.h:22:0,
                 from ../../../gcc/libgcc/libgcc2.c:29:
../../../gcc/libgcc/../gcc/config/i386/i386.h:2099:1: error: unknown
type name ‘bool’
 extern bool mybool;
 ^
make[2]: *** [_clear_cache.o] Error 1
make[2]: *** [_ucmpdi2.o] Error 1
make[2]: Leaving directory
`/myssd/terguo01/toolchain-build/flash-prefetch/src/gcc-build/i686-pc-linux-gnu/libgcc'
make[1]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory
`/myssd/terguo01/toolchain-build/flash-prefetch/src/gcc-build'
make: *** [all] Error 2

What should I do to use bool type in i386.h? Please help. Thanks in advance.

BR,
Terry