nim doc fail on lib/system/profiler.nim

[kaushalmodi]

koch docs fails when compiling nimprof.nim docs.

To reproduce this error, do:

nim doc lib/pure/nimprof.nim

I get:

Hint: used config file '/home/kmodi/stow/pkgs/nim/devel/config/nim.cfg' [Conf]
Hint: used config file '/home/kmodi/downloads/git/Nim/lib/pure/nimprof.nim.cfg' [Conf]
Hint: used config file '/home/kmodi/.config/nim/config.nims' [Conf]
../../../../../stow/pkgs/nim/devel/lib/system/profiler.nim(92, 23) Error: undeclared identifier: 'framePtr'

[kaushalmodi]

Probably related to #8991? May be the profiler was turned on by default recently?

[kaushalmodi]

Or.. probably this is the reason: #4446 (comment)

Failed every time if config.nims file is present in same folder as my nim file to profile.

I now have a config.nims in my ~/.config/nim/config.nims (I did not have that earlier, during my last koch docs)!

But my config.nims is simply defining Nim build and "nim doc" unrelated tasks: https://github.com/kaushalmodi/nim_config/blob/master/config.nims. The only switch it sets is switch("nep1", "on").

[kaushalmodi]

Turns out I get this error even if an empty config.nims is present in ~/.config/nim/ dir.

To reproduce this issue on a unix type system, do:

mkdir -p ~/.config/nim/
touch ~/.config/nim/config.nims # creates empty config.nims
# cd to the nim cloned repo
nim doc lib/pure/nimprof.nim

[kaushalmodi]

@Araq Probably fixing the config file search order (ref: #9405) fixes this?