2.4.15-pre4、こんな感じで止まった。(slack付属のgcc 2.95.3)

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make[1]: 入ります ディレクトリ `/usr/src/linux-2.4.15-pre4/arch/i386/kernel'
gcc -D__KERNEL__ -I/usr/src/linux-2.4.15-pre4/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i686 -c -o setup.o setup.c
setup.c: In function `c_start':
setup.c:2791: subscripted value is neither array nor pointer
setup.c:2792: warning: control reaches end of non-void function
make[1]: *** [setup.o] エラー 1