forked from mirrors/nixpkgs
emacs: use runCommand to generate wrapper
This removes the unnecessary compiler build dependency. We also set
preferLocalBuild = true;
allowSubstitutes = false;
to not farm out the build on a remote builder or bother with trying to
find a binary substitution.
This commit is contained in:
Robert Helgesson
parent
cde50a4fab
commit
241e28e3d1
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@ -32,7 +32,7 @@ in customEmacsPackages.emacsWithPackages (epkgs: [ epkgs.evil epkgs.magit ])
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*/
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{ lib, lndir, makeWrapper, runCommand, stdenv }: self:
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{ lib, lndir, makeWrapper, runCommand }: self:
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with lib; let inherit (self) emacs; in
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@ -45,105 +45,110 @@ let
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else packagesFun;
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in
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stdenv.mkDerivation {
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name = (appendToName "with-packages" emacs).name;
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nativeBuildInputs = [ emacs lndir makeWrapper ];
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inherit emacs explicitRequires;
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runCommand
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(appendToName "with-packages" emacs).name
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{
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nativeBuildInputs = [ emacs lndir makeWrapper ];
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inherit emacs explicitRequires;
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# Store all paths we want to add to emacs here, so that we only need to add
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# one path to the load lists
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deps = runCommand "emacs-packages-deps"
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{ inherit explicitRequires lndir emacs; }
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''
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findInputsOld() {
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local pkg="$1"; shift
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local var="$1"; shift
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local propagatedBuildInputsFiles=("$@")
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preferLocalBuild = true;
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allowSubstitutes = false;
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# TODO(@Ericson2314): Restore using associative array once Darwin
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# nix-shell doesn't use impure bash. This should replace the O(n)
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# case with an O(1) hash map lookup, assuming bash is implemented
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# well :D.
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local varSlice="$var[*]"
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# ''${..-} to hack around old bash empty array problem
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case "''${!varSlice-}" in
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*" $pkg "*) return 0 ;;
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esac
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unset -v varSlice
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# Store all paths we want to add to emacs here, so that we only need to add
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# one path to the load lists
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deps = runCommand "emacs-packages-deps"
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{ inherit explicitRequires lndir emacs; }
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''
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findInputsOld() {
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local pkg="$1"; shift
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local var="$1"; shift
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local propagatedBuildInputsFiles=("$@")
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eval "$var"'+=("$pkg")'
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# TODO(@Ericson2314): Restore using associative array once Darwin
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# nix-shell doesn't use impure bash. This should replace the O(n)
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# case with an O(1) hash map lookup, assuming bash is implemented
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# well :D.
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local varSlice="$var[*]"
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# ''${..-} to hack around old bash empty array problem
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case "''${!varSlice-}" in
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*" $pkg "*) return 0 ;;
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esac
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unset -v varSlice
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if ! [ -e "$pkg" ]; then
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echo "build input $pkg does not exist" >&2
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exit 1
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fi
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eval "$var"'+=("$pkg")'
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local file
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for file in "''${propagatedBuildInputsFiles[@]}"; do
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file="$pkg/nix-support/$file"
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[[ -f "$file" ]] || continue
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if ! [ -e "$pkg" ]; then
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echo "build input $pkg does not exist" >&2
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exit 1
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fi
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local pkgNext
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for pkgNext in $(< "$file"); do
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findInputsOld "$pkgNext" "$var" "''${propagatedBuildInputsFiles[@]}"
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done
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done
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}
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mkdir -p $out/bin
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mkdir -p $out/share/emacs/site-lisp
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local file
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for file in "''${propagatedBuildInputsFiles[@]}"; do
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file="$pkg/nix-support/$file"
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[[ -f "$file" ]] || continue
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local requires
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for pkg in $explicitRequires; do
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findInputsOld $pkg requires propagated-user-env-packages
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done
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# requires now holds all requested packages and their transitive dependencies
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local pkgNext
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for pkgNext in $(< "$file"); do
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findInputsOld "$pkgNext" "$var" "''${propagatedBuildInputsFiles[@]}"
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done
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done
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}
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mkdir -p $out/bin
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mkdir -p $out/share/emacs/site-lisp
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linkPath() {
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local pkg=$1
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local origin_path=$2
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local dest_path=$3
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local requires
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for pkg in $explicitRequires; do
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findInputsOld $pkg requires propagated-user-env-packages
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done
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# requires now holds all requested packages and their transitive dependencies
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# Add the path to the search path list, but only if it exists
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if [[ -d "$pkg/$origin_path" ]]; then
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$lndir/bin/lndir -silent "$pkg/$origin_path" "$out/$dest_path"
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fi
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}
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linkPath() {
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local pkg=$1
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local origin_path=$2
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local dest_path=$3
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linkEmacsPackage() {
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linkPath "$1" "bin" "bin"
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linkPath "$1" "share/emacs/site-lisp" "share/emacs/site-lisp"
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}
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# Add the path to the search path list, but only if it exists
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if [[ -d "$pkg/$origin_path" ]]; then
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$lndir/bin/lndir -silent "$pkg/$origin_path" "$out/$dest_path"
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fi
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}
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# Iterate over the array of inputs (avoiding nix's own interpolation)
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for pkg in "''${requires[@]}"; do
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linkEmacsPackage $pkg
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done
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linkEmacsPackage() {
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linkPath "$1" "bin" "bin"
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linkPath "$1" "share/emacs/site-lisp" "share/emacs/site-lisp"
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}
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siteStart="$out/share/emacs/site-lisp/site-start.el"
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siteStartByteCompiled="$siteStart"c
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subdirs="$out/share/emacs/site-lisp/subdirs.el"
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subdirsByteCompiled="$subdirs"c
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# Iterate over the array of inputs (avoiding nix's own interpolation)
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for pkg in "''${requires[@]}"; do
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linkEmacsPackage $pkg
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done
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# A dependency may have brought the original siteStart or subdirs, delete
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# it and create our own
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# Begin the new site-start.el by loading the original, which sets some
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# NixOS-specific paths. Paths are searched in the reverse of the order
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# they are specified in, so user and system profile paths are searched last.
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rm -f $siteStart $siteStartByteCompiled $subdirs $subdirsByteCompiled
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cat >"$siteStart" <<EOF
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(load-file "$emacs/share/emacs/site-lisp/site-start.el")
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(add-to-list 'load-path "$out/share/emacs/site-lisp")
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(add-to-list 'exec-path "$out/bin")
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EOF
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# Link subdirs.el from the emacs distribution
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ln -s $emacs/share/emacs/site-lisp/subdirs.el -T $subdirs
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siteStart="$out/share/emacs/site-lisp/site-start.el"
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siteStartByteCompiled="$siteStart"c
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subdirs="$out/share/emacs/site-lisp/subdirs.el"
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subdirsByteCompiled="$subdirs"c
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# Byte-compiling improves start-up time only slightly, but costs nothing.
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$emacs/bin/emacs --batch -f batch-byte-compile "$siteStart" "$subdirs"
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'';
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# A dependency may have brought the original siteStart or subdirs, delete
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# it and create our own
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# Begin the new site-start.el by loading the original, which sets some
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# NixOS-specific paths. Paths are searched in the reverse of the order
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# they are specified in, so user and system profile paths are searched last.
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rm -f $siteStart $siteStartByteCompiled $subdirs $subdirsByteCompiled
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cat >"$siteStart" <<EOF
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(load-file "$emacs/share/emacs/site-lisp/site-start.el")
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(add-to-list 'load-path "$out/share/emacs/site-lisp")
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(add-to-list 'exec-path "$out/bin")
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EOF
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# Link subdirs.el from the emacs distribution
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ln -s $emacs/share/emacs/site-lisp/subdirs.el -T $subdirs
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phases = [ "installPhase" ];
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installPhase = ''
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# Byte-compiling improves start-up time only slightly, but costs nothing.
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$emacs/bin/emacs --batch -f batch-byte-compile "$siteStart" "$subdirs"
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'';
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inherit (emacs) meta;
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}
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''
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mkdir -p "$out/bin"
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# Wrap emacs and friends so they find our site-start.el before the original.
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@ -172,6 +177,4 @@ EOF
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for dir in applications icons info man; do
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ln -s $emacs/share/$dir $out/share/$dir
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done
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'';
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inherit (emacs) meta;
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}
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''
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@ -60,7 +60,7 @@ let
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};
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emacsWithPackages = import ../build-support/emacs/wrapper.nix {
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inherit lib lndir makeWrapper stdenv runCommand;
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inherit lib lndir makeWrapper runCommand;
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};
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mkManualPackages = import ../applications/editors/emacs-modes/manual-packages.nix {
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