KOSの構築をしていたんですが、以下のエラーにより断念。
beroサソ光臨キボンヌ！！

make -C libc
make[1]: Entering directory `/usr/local/kos/libc'
/usr/local/bin/sh-elf-gcc -Wall -g -ml -m4-single-only -O2 -fno-builtin -fno-str
ict-aliasing -fomit-frame-pointer -fno-optimize-sibling-calls -D_arch_dreamcast
-I/usr/local/kos/include -I/usr/local/kos/libc/include -I/usr/local/kos/kernel/
arch/dreamcast/include -c gen/assert.c -o gen/assert.o
gen/assert.c:1: Internal compiler error in size_binop, at fold-const.c:2014
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html>; for instructions.
make[1]: *** [gen/assert.o] Error 1
make[1]: Leaving directory `/usr/local/kos/libc'
make: *** [build-libc] Error 2make -C libc
make[1]: Entering directory `/usr/local/kos/libc'
/usr/local/bin/sh-elf-gcc -Wall -g -ml -m4-single-only -O2 -fno-builtin -fno-str
ict-aliasing -fomit-frame-pointer -fno-optimize-sibling-calls -D_arch_dreamcast
-I/usr/local/kos/include -I/usr/local/kos/libc/include -I/usr/local/kos/kernel/
arch/dreamcast/include -c gen/assert.c -o gen/assert.o
gen/assert.c:1: Internal compiler error in size_binop, at fold-const.c:2014
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html>; for instructions.
make[1]: *** [gen/assert.o] Error 1
make[1]: Leaving directory `/usr/local/kos/libc'
make: *** [build-libc] Error 2

一応、KOS_BASEにパスは通しているんですが・・・