compiler/nimeval execute fails with Error: cannot open '$PWD/../lib/system.nim'

[timotheecour]

D20180410T192630

@Araq looks like your fix for #7522 causes another issue:

compiler/nimeval execute fails with Error: cannot open '/private/tmp/lib/system.nim'

pwd
/tmp/d04 # same as /private/tmp/d04 on OSX

test.nim:

import compiler/nimeval
echo "before"
execute("echo 1+2")

nim c -o:app -r test.nim

Hint: operation successful (104314 lines compiled; 4.113 sec total; 425.582MiB peakmem; Debug Build) [SuccessX]
Hint: ./app  [Exec]
before
Hint: used config file '/Users/timothee/.config/nim.cfg' [Conf]
Hint: system [Processing]
Error: cannot open '/private/tmp/lib/system.nim'
Error: execution of an external program failed: './app '

diagnostic

looks like execute tries to hardcode path $PWD/lib/system.nim during compilation

NOTE

• /Users/timothee/.config/nim.cfg is empty
• nim --version
  Nim Compiler Version 0.18.1 [MacOSX: amd64]
  Copyright (c) 2006-2018 by Andreas Rumpf

active boot switches: -d:release

nim installed via choosenim #head

unfortunately, nim --version doesn't show git hash, but my proposal here dom96/choosenim#57 (comment) would; in any case IIRC, #head was after your fix, but fails for reason above

[andreaferretti]

Confirmed, it happens for me as well (I installed Nim manually, not via choosenim)

[timotheecour]

since this is the 2nd regression on this, a test case would be nice

[Araq]

The compiler API is now stable and here is an example that is part of the test suite: https://github.com/nim-lang/Nim/tree/devel/tests/compilerapi