42 lines
1.3 KiB
Bash
42 lines
1.3 KiB
Bash
# Support dir for isolating GHC
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ghc_support=$TMPDIR/ghc-6.6-nix-support
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mkdir -p $ghc_support
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# Create isolated package config
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packages_db=$ghc_support/package.conf
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cp @out@/lib/ghc-*/package.conf $packages_db
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chmod +w $packages_db
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# Generate wrappers for GHC that use the isolated package config
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makeWrapper() {
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wrapperName="$1"
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wrapper="$ghc_support/$wrapperName"
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shift #the other arguments are passed to the source app
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echo '#!'"$SHELL" > "$wrapper"
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echo "exec \"@out@/bin/$wrapperName\" $@" '"$@"' > "$wrapper"
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chmod +x "$wrapper"
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}
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makeWrapper "ghc" "-no-user-package-conf -package-conf $packages_db"
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makeWrapper "ghci" "-no-user-package-conf -package-conf $packages_db"
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makeWrapper "runghc" "-no-user-package-conf -package-conf $packages_db"
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makeWrapper "runhaskell" "-no-user-package-conf -package-conf $packages_db"
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makeWrapper "ghc-pkg" "--global-conf $packages_db"
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# Add wrappers to search path
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export _PATH=$ghc_support:$_PATH
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# Env hook to add packages to the package config
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addLibToPackageConf ()
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{
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local regscript=$1/nix-support/register-ghclib.sh
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if test -f $regscript; then
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local oldpath=$PATH
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export PATH=$ghc_support:$PATH
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sh $regscript $package_db
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export PATH=$oldpath
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fi
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}
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envHooks=(${envHooks[@]} addLibToPackageConf)
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