make -C svr4 modules
make[2]: Entering directory `/usr/src/linux-2.4.21-99/abi/svr4'
gcc -D__KERNEL__ -I/usr/src/linux-2.4.21-99/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -fno-unit-at-a-time -pipe -msoft-float -mpreferred-stack-boundary=2 -march=athlon -DMODULE -DMODVERSIONS -include /usr/src/linux-2.4.21-99/include/linux/modversions.h -nostdinc -iwithprefix include -DKBUILD_BASENAME=sysinfo -c -o sysinfo.o sysinfo.c
sysinfo.c:9:27: linux/compile.h: No such file or directory
sysinfo.c: In function `svr4_sysinfo':
sysinfo.c:83: error: `UTS_VERSION' undeclared (first use in this function)
sysinfo.c:83: error: (Each undeclared identifier is reported only once
sysinfo.c:83: error: for each function it appears in.)
make[2]: *** [sysinfo.o] Error 1
make[2]: Leaving directory `/usr/src/linux-2.4.21-99/abi/svr4'
make[1]: *** [_modsubdir_svr4] Error 2
make[1]: Leaving directory `/usr/src/linux-2.4.21-99/abi'
make: *** [_mod_abi] Error 2