我正在尝试使用以下项目:https://github.com/mpickering/old-ghc-nix
我假设我要“导入” ghc.nix
(生成派生词?):
shell.nix :
with (import <nixpkgs> {});
# let ghc = nur.repos.mpickering.ghc.ghc841;
let ghc = import /home/chris/temp/old-ghc-nix/ghc.nix;
in haskell.lib.buildStackProject {
inherit ghc;
name = "myEnv";
buildInputs = [ pcre ];
}
但是这给我一个错误:
...
error: cannot coerce a function to a string, at /home/chris/fromLaptopt/usbflash/Haskell/CeriumYankeeAvocado/shell.nix:6:3
...
如何“执行”功能/构建派生工具?
ghc.nix :
{ stdenv
, fetchurl, perl, gcc, llvm_39
, ncurses5, gmp, glibc, libiconv
}: { version, url, hash, ...}:
# Prebuilt only does native
assert stdenv.targetPlatform == stdenv.hostPlatform;
let
libPath = stdenv.lib.makeLibraryPath ([
ncurses5 gmp
] ++ stdenv.lib.optional (stdenv.hostPlatform.isDarwin) libiconv);
libEnvVar = stdenv.lib.optionalString stdenv.hostPlatform.isDarwin "DY"
+ "LD_LIBRARY_PATH";
glibcDynLinker = assert stdenv.isLinux;
if stdenv.hostPlatform.libc == "glibc" then
# Could be stdenv.cc.bintools.dynamicLinker, keeping as-is to avoid rebuild.
''"$(cat $NIX_CC/nix-support/dynamic-linker)"''
else
"${stdenv.lib.getLib glibc}/lib/ld-linux*";
in
stdenv.mkDerivation rec {
name = "ghc-${version}-binary";
src = fetchurl {
url = url;
sha256 = hash;
};
nativeBuildInputs = [ perl ];
buildInputs = stdenv.lib.optionals (stdenv.targetPlatform.isAarch32 || stdenv.targetPlatform.isAarch64) [ llvm_39 ];
# Cannot patchelf beforehand due to relative RPATHs that anticipate
# the final install location/
${libEnvVar} = libPath;
postUnpack =
# GHC has dtrace probes, which causes ld to try to open /usr/lib/libdtrace.dylib
# during linking
stdenv.lib.optionalString stdenv.isDarwin ''
export NIX_LDFLAGS+=" -no_dtrace_dof"
# not enough room in the object files for the full path to libiconv :(
for exe in $(find . -type f -executable); do
isScript $exe && continue
ln -fs ${libiconv}/lib/libiconv.dylib $(dirname $exe)/libiconv.dylib
install_name_tool -change /usr/lib/libiconv.2.dylib @executable_path/libiconv.dylib -change /usr/local/lib/gcc/6/libgcc_s.1.dylib ${gcc.cc.lib}/lib/libgcc_s.1.dylib $exe
done
'' +
# Some scripts used during the build need to have their shebangs patched
''
patchShebangs ghc-${version}/utils/
patchShebangs ghc-${version}/configure
'' +
# Strip is harmful, see also below. It's important that this happens
# first. The GHC Cabal build system makes use of strip by default and
# has hardcoded paths to /usr/bin/strip in many places. We replace
# those below, making them point to our dummy script.
''
mkdir "$TMP/bin"
for i in strip; do
echo '#! ${stdenv.shell}' > "$TMP/bin/$i"
chmod +x "$TMP/bin/$i"
done
PATH="$TMP/bin:$PATH"
'' +
# We have to patch the GMP paths for the integer-gmp package.
''
find . -name integer-gmp.buildinfo \
-exec sed -i "s@extra-lib-dirs: @extra-lib-dirs: ${gmp.out}/lib@" {} \;
'' + stdenv.lib.optionalString stdenv.isDarwin ''
find . -name base.buildinfo \
-exec sed -i "s@extra-lib-dirs: @extra-lib-dirs: ${libiconv}/lib@" {} \;
'' +
# Rename needed libraries and binaries, fix interpreter
stdenv.lib.optionalString stdenv.isLinux ''
find . -type f -perm -0100 -exec patchelf \
--replace-needed libncurses${stdenv.lib.optionalString stdenv.is64bit "w"}.so.5 libncurses.so \
--replace-needed libtinfo.so libtinfo.so.5 \
--interpreter ${glibcDynLinker} {} \;
sed -i "s|/usr/bin/perl|perl\x00 |" ghc-${version}/ghc/stage2/build/tmp/ghc-stage2
sed -i "s|/usr/bin/gcc|gcc\x00 |" ghc-${version}/ghc/stage2/build/tmp/ghc-stage2
'';
configurePlatforms = [ ];
configureFlags = [
"--with-gmp-libraries=${stdenv.lib.getLib gmp}/lib"
"--with-gmp-includes=${stdenv.lib.getDev gmp}/include"
] ++ stdenv.lib.optional stdenv.isDarwin "--with-gcc=${./gcc-clang-wrapper.sh}"
++ stdenv.lib.optional stdenv.hostPlatform.isMusl "--disable-ld-override";
# Stripping combined with patchelf breaks the executables (they die
# with a segfault or the kernel even refuses the execve). (NIXPKGS-85)
dontStrip = true;
# No building is necessary, but calling make without flags ironically
# calls install-strip ...
dontBuild = true;
# On Linux, use patchelf to modify the executables so that they can
# find editline/gmp.
preFixup = stdenv.lib.optionalString stdenv.isLinux ''
for p in $(find "$out" -type f -executable); do
if isELF "$p"; then
echo "Patchelfing $p"
patchelf --set-rpath "${libPath}:$(patchelf --print-rpath $p)" $p
fi
done
'' + stdenv.lib.optionalString stdenv.isDarwin ''
# not enough room in the object files for the full path to libiconv :(
for exe in $(find "$out" -type f -executable); do
isScript $exe && continue
ln -fs ${libiconv}/lib/libiconv.dylib $(dirname $exe)/libiconv.dylib
install_name_tool -change /usr/lib/libiconv.2.dylib @executable_path/libiconv.dylib -change /usr/local/lib/gcc/6/libgcc_s.1.dylib ${gcc.cc.lib}/lib/libgcc_s.1.dylib $exe
done
for file in $(find "$out" -name setup-config); do
substituteInPlace $file --replace /usr/bin/ranlib "$(type -P ranlib)"
done
'';
doInstallCheck = true;
installCheckPhase = ''
unset ${libEnvVar}
# Sanity check, can ghc create executables?
cd $TMP
mkdir test-ghc; cd test-ghc
cat > main.hs << EOF
{-# LANGUAGE TemplateHaskell #-}
module Main where
main = putStrLn \$([|"yes"|])
EOF
$out/bin/ghc --make main.hs || exit 1
echo compilation ok
[ $(./main) == "yes" ]
'';
passthru = {
targetPrefix = "";
enableShared = true;
};
meta.license = stdenv.lib.licenses.bsd3;
meta.platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin"];
}
答案 0 :(得分:1)
首先,一些特定于old-ghc-nix
的通用注释不是:如果您导入的.nix
文件以{...}:
开头,则...
是定义attrset用作函数参数;您实际上需要使用该参数调用导入的函数,以获取...好...该函数求值的任何结果。
现在继续具体。 :)
old-ghc-nix
提供了一个default.nix
,用于在随附的JSON文件中查找旧GHC版本的定义。使用该入口点很有意义-如果您直接继承ghc.nix
,则需要提供要构建的GHC特定版本的版本,校验和和URL。
我个人将其写为:
let
pkgs = (import <nixpkgs> {});
ghcOld = (import ../old-ghc-nix) { inherit pkgs; };
in with pkgs; haskell.lib.buildStackProject {
ghc = ghcOld.ghc841;
name = "myEnv";
buildInputs = [ pcre ];
}