I've tried to compile 2.5.8 on PowerMac G3 and I got this:
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gcc -D__KERNEL__ -I/home/users/adasi/rpm/BUILD/linux-2.5.8/include -Wall -Ws
trict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasin
g -fno-common -I/home/users/adasi/rpm/BUILD/linux-2.5.8/arch/ppc -fsigned-ch
ar -msoft-float -pipe -ffixed-r2 -Wno-uninitialized -mmultiple -mstring -D
KBUILD_BASENAME=swim3 -c -o swim3.o swim3.c
swim3.c:32: asm/feature.h: No such file or directory
swim3.c: In function `start_request':
swim3.c:316: invalid operands to binary >>
swim3.c:318: structure has no member named `bh'
swim3.c:318: structure has no member named `bh'
swim3.c:341: warning: comparison between pointer and integer
swim3.c: In function `setup_transfer':
swim3.c:429: warning: comparison between pointer and integer
swim3.c:442: warning: comparison between pointer and integer
swim3.c:456: warning: comparison between pointer and integer
swim3.c: In function `xfer_timeout':
swim3.c:595: warning: comparison between pointer and integer
swim3.c:604: warning: comparison between pointer and integer
swim3.c: In function `swim3_interrupt':
swim3.c:626: warning: unsigned int format, pointer arg (arg 3)
swim3.c:688: warning: comparison between pointer and integer
swim3.c:705: warning: comparison between pointer and integer
swim3.c:715: warning: unsigned int format, pointer arg (arg 3)
swim3.c: In function `floppy_ioctl':
swim3.c:819: invalid operands to binary &
swim3.c: In function `floppy_open':
swim3.c:851: invalid operands to binary &
swim3.c: In function `floppy_release':
swim3.c:925: invalid operands to binary &
swim3.c: In function `floppy_check_change':
swim3.c:942: invalid operands to binary &
swim3.c:944: invalid operands to binary >>
swim3.c: In function `floppy_revalidate':
swim3.c:956: invalid operands to binary &
swim3.c:958: invalid operands to binary >>
swim3.c: In function `swim3_add_device':
swim3.c:1066: warning: implicit declaration of function `feature_set'
swim3.c:1066: `FEATURE_SWIM3_enable' undeclared (first use in this function)
swim3.c:1066: (Each undeclared identifier is reported only once
swim3.c:1066: for each function it appears in.)
swim3.c:1088: warning: implicit declaration of function `feature_clear'
make[3]: *** [swim3.o] Error 1
make[3]: Leaving directory
`/home/users/adasi/rpm/BUILD/linux-2.5.8/drivers/block'
make[2]: *** [first_rule] Error 2
make[2]: Leaving directory
`/home/users/adasi/rpm/BUILD/linux-2.5.8/drivers/block'
make[1]: *** [_subdir_block] Error 2
make[1]: Leaving directory `/home/users/adasi/rpm/BUILD/linux-2.5.8/drivers'
make: *** [_dir_drivers] Error 2
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Who can help?
WK