With 2.4.7-6, I did my standard

make mrproper
make menuconfig
make dep
make clean
MAKE="make -j2" make -j2 bzImage # my machine is SMP

and the compile failed in the tulip driver.  Just to make sure I didn't
forget Mr. Proper, I did that again and tried a second time.  It still
failed in the same place.

ld -m elf_i386  -r -o net.o tulip/tulip.o tulip_old/tulip_old.o Space.o
setup.o net_init.o loopback.o auto_irq.o
make -j2 all_targets
tulip_old/tulip_old.o: In function `tulip_refill_rx':
tulip_old/tulip_old.o(.text+0x630): multiple definition of `tulip_refill_rx'
tulip/tulip.o(.text+0x640): first defined here
tulip_old/tulip_old.o: In function `pnic_do_nway':
tulip_old/tulip_old.o(.text+0x53c0): multiple definition of `pnic_do_nway'
tulip/tulip.o(.text+0x5b30): first defined here
ld: Warning: size of symbol `pnic_do_nway' changed from 330 to 292 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `tulip_mdio_read':
tulip_old/tulip_old.o(.text+0x1220): multiple definition of `tulip_mdio_read'
tulip/tulip.o(.text+0x12c0): first defined here
tulip_old/tulip_old.o: In function `tulip_parse_eeprom':
tulip_old/tulip_old.o(.text+0x0): multiple definition of `tulip_parse_eeprom'
tulip/tulip.o(.text+0x0): first defined here
ld: Warning: size of symbol `tulip_parse_eeprom' changed from 1395 to 1379
in tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `pnic_lnk_change':
tulip_old/tulip_old.o(.text+0x5690): multiple definition of `pnic_lnk_change'
tulip/tulip.o(.text+0x5c80): first defined here
ld: Warning: size of symbol `pnic_lnk_change' changed from 268 to 272 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `tulip_check_duplex':
tulip_old/tulip_old.o(.text+0x1e50): multiple definition of
`tulip_check_duplex'
tulip/tulip.o(.text+0x1f50): first defined here
ld: Warning: size of symbol `tulip_check_duplex' changed from 480 to 407 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `tulip_interrupt':
tulip_old/tulip_old.o(.text+0xaf0): multiple definition of `tulip_interrupt'
tulip/tulip.o(.text+0xb00): first defined here
ld: Warning: size of symbol `tulip_interrupt' changed from 1983 to 1840 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o(.data+0x264): multiple definition of `tulip_debug'
tulip/tulip.o(.data+0x264): first defined here
tulip_old/tulip_old.o(.data+0x604): multiple definition of `t21040_csr13'
tulip/tulip.o(.data+0x620): first defined here
tulip_old/tulip_old.o: In function `comet_timer':
tulip_old/tulip_old.o(.text+0x2540): multiple definition of `comet_timer'
tulip/tulip.o(.text+0x28e0): first defined here
tulip_old/tulip_old.o: In function `t21142_start_nway':
tulip_old/tulip_old.o(.text+0x4e90): multiple definition of `t21142_start_nway'
tulip/tulip.o(.text+0x5580): first defined here
tulip_old/tulip_old.o(.rodata+0x100): multiple definition of `tulip_media_cap'
tulip/tulip.o(.rodata+0x160): first defined here
ld: Warning: size of symbol `tulip_media_cap'changed from 32 to 16 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `pnic_timer':
tulip_old/tulip_old.o(.text+0x57a0): multiple definition of `pnic_timer'
tulip/tulip.o(.text+0x5d90): first defined here
ld: Warning: size of symbol `pnic_timer' changed from 805 to 763 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `t21142_timer':
tulip_old/tulip_old.o(.text+0x4c80): multiple definition of `t21142_timer'
tulip/tulip.o(.text+0x5350): first defined here
ld: Warning: size of symbol `t21142_timer' changed from 559 to 525 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o(.data+0x628): multiple definition of `t21041_csr15'
tulip/tulip.o(.data+0x644): first defined here
tulip_old/tulip_old.o: In function `tulip_mdio_write':
tulip_old/tulip_old.o(.text+0x13b0): multiple definition of `tulip_mdio_write'
tulip/tulip.o(.text+0x1450): first defined here
ld: Warning: size of symbol `tulip_mdio_write' changed from 389 to 341 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `tulip_timer':
tulip_old/tulip_old.o(.text+0x1ff0): multiple definition of `tulip_timer'
tulip/tulip.o(.text+0x23c0): first defined here
ld: Warning: size of symbol `tulip_timer' changed from 1219 to 1272 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o: In function `t21142_lnk_change':
tulip_old/tulip_old.o(.text+0x4fa0): multiple definition of `t21142_lnk_change'
tulip/tulip.o(.text+0x5700): first defined here
ld: Warning: size of symbol `t21142_lnk_change' changed from 1071 to 1047
in tulip_old/tulip_old.o
tulip_old/tulip_old.o(.rodata+0xc0): multiple definition of `medianame'
tulip/tulip.o(.rodata+0xe0): first defined here
ld: Warning: size of symbol `medianame' changed from 128 to 64 in
tulip_old/tulip_old.o
tulip_old/tulip_old.o(.data+0x68a): multiple definition of `t21142_csr14'
tulip/tulip.o(.data+0x76a): first defined here
tulip_old/tulip_old.o(.bss+0x4): multiple definition of `tulip_rx_copybreak'
tulip/tulip.o(.bss+0x10): first defined here
tulip_old/tulip_old.o(.bss+0x0): multiple definition of
`tulip_max_interrupt_work'
tulip/tulip.o(.bss+0xc): first defined here
tulip_old/tulip_old.o(.data+0x61e): multiple definition of `t21041_csr14'
tulip/tulip.o(.data+0x63a): first defined here
tulip_old/tulip_old.o: In function `tulip_read_eeprom':
tulip_old/tulip_old.o(.text+0x570): multiple definition of `tulip_read_eeprom'
tulip/tulip.o(.text+0x580): first defined here
tulip_old/tulip_old.o(.data+0x614): multiple definition of `t21041_csr13'
tulip/tulip.o(.data+0x630): first defined here
tulip_old/tulip_old.o: In function `tulip_select_media':
tulip_old/tulip_old.o(.text+0x1510): multiple definition of
`tulip_select_media'
tulip/tulip.o(.text+0x15e0): first defined here
ld: Warning: size of symbol `tulip_select_media' changed from 2411 to 2363
in tulip_old/tulip_old.o
tulip_old/tulip_old.o(.data+0x268): multiple definition of `tulip_tbl'
tulip/tulip.o(.data+0x268): first defined here
tulip_old/tulip_old.o: In function `mxic_timer':
tulip_old/tulip_old.o(.text+0x24f0): multiple definition of `mxic_timer'
tulip/tulip.o(.text+0x2890): first defined here
make[3]: *** [net.o] Error 1