Commit Briefs
portable: add FreeBSD support
This adds the capability to compile got-portable on FreeBSD.
portable: initial Linux compilation
This commit modifies the GoT main branch to be able to compile it under linux.
Stop including <sys/syslimits.h> directly.
POSIX says the limits defined there are available from <limits.h>, which almost all affected source files already included anyway. ok millert stsp
got_error_from_errno -> got_error_prefix_errno
also add got_error_prefix_errno2 and got_error_prefix_errno3 which should hopefully all be merged into a single function with variadic args (but can't alloc mem)