Hi Andrew, The kernel build fails on the power box INSTALL vdso64.so INSTALL vdso32.so BOOTCC arch/powerpc/boot/inflate.o arch/powerpc/boot/inflate.c:920:19: error: errno.h: No such file or directory arch/powerpc/boot/inflate.c:921:18: error: slab.h: No such file or directory arch/powerpc/boot/inflate.c:922:21: error: vmalloc.h: No such file or directory arch/powerpc/boot/inflate.c: In function ‘zlib_inflate_blob’: arch/powerpc/boot/inflate.c:928: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token arch/powerpc/boot/inflate.c:928: error: ‘zbuf’ undeclared (first use in this function) arch/powerpc/boot/inflate.c:928: error: (Each undeclared identifier is reported only once arch/powerpc/boot/inflate.c:928: error: for each function it appears in.) arch/powerpc/boot/inflate.c:932: error: ‘ENOMEM’ undeclared (first use in this function) arch/powerpc/boot/inflate.c:933: warning: implicit declaration of function ‘kmalloc’ arch/powerpc/boot/inflate.c:933: error: ‘GFP_KERNEL’ undeclared (first use in this function) arch/powerpc/boot/inflate.c:933: warning: assignment makes pointer from integer without a cast arch/powerpc/boot/inflate.c:936: warning: assignment makes pointer from integer without a cast arch/powerpc/boot/inflate.c:955: error: ‘EINVAL’ undeclared (first use in this function) arch/powerpc/boot/inflate.c:960: warning: implicit declaration of function ‘kfree’ make[1]: *** [arch/powerpc/boot/inflate.o] Error 1 make: *** [install] Error 2 -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL.