FYI: compiling snapapi26-0.7.51 on kernels 2.6.31 and later

How to compile snapapi-0.7.51 in kernels greater than 2.6.30

Tried to compile snapapi26-0.7.51 on kernel-2.6.33 (gentoo in this case) and got the following error:

CC [M] /var/lib/dkms/snapapi26/0.7.10/build/snapapi26.o
cc1: error: include/linux/autoconf.h: No such file or directory

This is caused by a "feature" (bug? :) in kernels later than 2.6.30. These kernels save autoconf.h to /usr/src/linux/include/generated and snapapi26-0.7.51 source is (still :) looking for autoconf.h in /usr/src/linux/include/linux.

The quick and dirty solution is to copy /usr/src/linux/include/generated/autoconf.h into /usr/src/linux/include/linux and recompile.

John Breeden
Hawaii