Hello!
I was trying to compile PAM, and 'make' complained about not finding the RLIMIT_NICE symbol. After some googling, i found that RLIMIT_NICE should be found inside linux-<version>/include/asm-generic/resource.h.

I've got linux 2.6.19 sources, and i did find RLIMIT_NICE. I think that the problem is that PAM sources look for resource.h inside /usr/include/asm, and there RLIMIT_NICE is not defined.

Is it normal that the two files differ?
What should i do (besides substituting RLIMIT_NICE with 13 everywhere i find it in PAM sources)?

Thanks!

Most often (usually), when make can't fine a source file for compiling, it'll usually mention where it was expecting to find it. And usually it would be something like /usr/src/uname -r/include/asm-generic/resource.h. After all, your compiling using the same source as your kernel, therefore it should be looking in the source directory. Here is the RMLIMIT_NICE line in my resource.h file in that directory:
If according to make's errors it is not in/or looking at this directory, you'll need to make changes in the file from your PAM source that's calling for it which should be mentioned prior to the error message. Maybe you should post the command you issued and all the output that followed to the point this error get's printed on screen.

Might it be possible you don't have your current kernel's source (headers) installed? If you type: uname -r in a terminal, it will tell you what your current kernel is, the uname -r in that directory path should be the exact same.