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haskell/with-packages-wrapper.nix: remove /bin symlink if it exists

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The wrapper need a writable directory to work, so remove the symlink
to a read-only one if it occurs.
This commit is contained in:
Matthew Bauer 2020-01-06 18:25:50 -05:00
parent e915608618
commit 93aabab760
1 changed files with 9 additions and 0 deletions
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9
pkgs/development/haskell-modules/with-packages-wrapper.nix
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@ -61,6 +61,15 @@ buildEnv {
postBuild = ''
. ${makeWrapper}/nix-support/setup-hook
# We make changes to ghc binaries in $out/bin. buildEnv gives a
# symlink if only one of the paths has the subdirectory. If so,
# we need to remove it for our new wrappers.
if [ -L "$out/bin" ]; then
rm -f "$out/bin"
mkdir -p "$out/bin"
fi
# wrap compiler executables with correct env variables
for prg in ${ghcCommand} ${ghcCommand}i ${ghcCommand}-${ghc.version} ${ghcCommand}i-${ghc.version}; do