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Compiling pakku-git with nim-git fails with

==> Making package: pakku-git 0.13r6.gb7666cb-1 (Sat Sep 22 11:13:01 2018)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Updating pakku git repo...
Fetching origin
==> Validating source files with sha256sums...
    pakku ... Skipped
==> Extracting sources...
  -> Creating working copy of pakku git repo...
Switched to a new branch 'makepkg'
==> Starting pkgver()...
==> Removing existing $pkgdir/ directory...
==> Starting build()...
NIM: lib/tools
tools.nim(1, 8) Error: cannot open file: os
make: *** [Makefile:117: lib/tools] Error 1
==> ERROR: A failure occurred in build().
    Aborting...

The same works fine with the stable nim.

Note that in order to properly upgrade to the new version scheme you'll need to use an epoch.

-d:useGnuReadline is also no longer supported by koch so I used -d:useLinenoise Also note that nim will check config files in /etc/nim/ now, otherwise nim will not know about the libraries in /usr/lib/nim https://github.com/nim-lang/Nim/issues/8653

This package no longer builds in a clean chroot:

Hint: operation successful (122109 lines compiled; 14.481 sec total; 411.09MiB peakmem; Release Build) [SuccessX]
iteration: 2
compiler/nim1 c -d:release -d:nativeStacktrace -d:useGnuReadline --nimcache:nimcache/r_linux_amd64 compiler/nim.nim
Hint: used config file '/build/nim-git/src/Nim/config/nim.cfg' [Conf]
Hint: used config file '/build/nim-git/src/Nim/compiler/nim.cfg' [Conf]
Hint: system [Processing]
lib/system/excpt.nim(310, 9) Error: type mismatch: got <nil> but expected 'seq[StackTraceEntry]'
FAILURE
==> ERROR: A failure occurred in build().
    Aborting...

This seems to be related to the following line:

./koch boot -d:release -d:nativeStacktrace -d:useGnuReadline

Utilizing two options that no longer seem supported by koch: https://github.com/nim-lang/Nim/blob/devel/koch.nim#L46

EDIT: Removing -d:nativeStacktrace fixes the build.

The pkgver() function should be replaced with the following:

pkgver() {
  cd "$pkgname"
  git describe --long --tags           \
    | sed 's/\([^-]*-g\)/r\1/;s/-/./g' \
    | sed 's/v//'
}

Which (currently) yields: 0.18.0.r1001.g506418ef5

@ibrokemypie

You have to build nim-git with docs generation disabled first, then rebuild with docs after you've installed nim-git.

Currently failing to build with

manual_snippet_122.nim(4, 20) Error: undeclared identifier: 'ForLoopStmt'
Error: execution of an external program failed: 'nim c doc/nimcache/manual/manual_snippet_122.nim'

Error: execution of an external program failed: '/tmp/makepkg/nim-git/src/Nim/tools/nimweb --pdf web/website.ini --putenv:nimversion=0.18.1'
FAILURE
==> ERROR: A failure occurred in build().
    Aborting...