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melpaBuild: add unpackCmd for single-file packages

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Emacs packages are commonly distributed as single .el files. This
unpackCmd handles them correctly and sets up sourceRoot. Other sources
are treated in the default manner.
This commit is contained in:
Thomas Tuegel 2015-04-16 10:09:28 -05:00
parent 32c0069b79
commit 07a0031029
1 changed files with 13 additions and 0 deletions
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13
pkgs/build-support/emacs/generic.nix
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@ -29,6 +29,19 @@ in
stdenv.mkDerivation ({
name = "emacs-${pname}${optionalString (version != null) "-${version}"}";
unpackCmd = ''
case "$curSrc" in
*.el)
cp $curSrc $pname.el
chmod +w $pname.el
sourceRoot="."
;;
*)
_defaultUnpack "$curSrc"
;;
esac
'';
buildInputs = [emacs texinfo] ++ packageRequires ++ buildInputs;
propagatedBuildInputs = packageRequires;
propagatedUserEnvPkgs = packageRequires;