boost: Refactor into generic.nix

2014-11-02 17:22:27 -08:00
parent 1df867f008
commit af8654db27
3 changed files with 163 additions and 244 deletions
@@ -0,0 +1,155 @@
+{ stdenv, icu, expat, zlib, bzip2, python, fixDarwinDylibNames
+, toolset ? null
+, enableRelease ? true
+, enableDebug ? false
+, enableSingleThreaded ? false
+, enableMultiThreaded ? true
+, enableShared ? true
+, enableStatic ? false
+, enablePIC ? false
+, enableExceptions ? false
+, taggedLayout ? ((enableRelease && enableDebug) || (enableSingleThreaded && enableMultiThreaded) || (enableShared && enableStatic))
+
+# Attributes inherit from specific versions
+, version, src
+}:
+
+# We must build at least one type of libraries
+assert !enableShared -> enableStatic;
+
+with stdenv.lib;
+let
+
+  variant = concatStringsSep ","
+    (optional enableRelease "release" ++
+     optional enableDebug "debug");
+
+  threading = concatStringsSep ","
+    (optional enableSingleThreaded "single" ++
+     optional enableMultiThreaded "multi");
+
+  link = concatStringsSep ","
+    (optional enableShared "shared" ++
+     optional enableStatic "static");
+
+  runtime-link = if enableShared then "shared" else "static";
+
+  # To avoid library name collisions
+  layout = if taggedLayout then "tagged" else "system";
+
+  cflags = if enablePIC && enableExceptions then
+             "cflags=\"-fPIC -fexceptions\" cxxflags=-fPIC linkflags=-fPIC"
+           else if enablePIC then
+             "cflags=-fPIC cxxflags=-fPIC linkflags=-fPIC"
+           else if enableExceptions then
+             "cflags=-fexceptions"
+           else
+             "";
+
+  withToolset = stdenv.lib.optionalString (toolset != null) "--with-toolset=${toolset}";
+
+  genericB2Flags = [
+    "--includedir=$dev/include"
+    "--libdir=$lib/lib"
+    "-j$NIX_BUILD_CORES"
+    "--layout=${layout}"
+    "variant=${variant}"
+    "threading=${threading}"
+    "runtime-link=${runtime-link}"
+    "link=${link}"
+    "${cflags}"
+  ] ++ optional (variant == "release") "debug-symbols=off";
+
+  nativeB2Flags = [
+    "-sEXPAT_INCLUDE=${expat}/include"
+    "-sEXPAT_LIBPATH=${expat}/lib"
+  ] ++ optional (toolset != null) "toolset=${toolset}";
+  nativeB2Args = concatStringsSep " " (genericB2Flags ++ nativeB2Flags);
+
+  crossB2Flags = [
+    "-sEXPAT_INCLUDE=${expat.crossDrv}/include"
+    "-sEXPAT_LIBPATH=${expat.crossDrv}/lib"
+    "--user-config=user-config.jam"
+    "toolset=gcc-cross"
+    "--without-python"
+  ];
+  crossB2Args = concatMapStringsSep " " (genericB2Flags ++ crossB2Flags);
+
+  builder = b2Args: ''
+    ./b2 ${b2Args}
+  '';
+
+  installer = b2Args: ''
+    # boostbook is needed by some applications
+    mkdir -p $dev/share/boostbook
+    cp -a tools/boostbook/{xsl,dtd} $dev/share/boostbook/
+
+    # Let boost install everything else
+    ./b2 ${b2Args} install
+
+    # Create a derivation which encompasses everything, making buildInputs nicer
+    mkdir -p $out/nix-support
+    echo "$dev $lib" > $out/nix-support/propagated-native-build-inputs
+  '';
+
+  commonConfigureFlags = [
+    "--includedir=$(dev)/include"
+    "--libdir=$(lib)/lib"
+  ];
+in
+
+stdenv.mkDerivation {
+  name = "boost-${version}";
+
+  inherit src;
+
+  meta = {
+    homepage = "http://boost.org/";
+    description = "Collection of C++ libraries";
+    license = "boost-license";
+
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ simons wkennington ];
+  };
+
+  preConfigure = ''
+    NIX_LDFLAGS="$(echo $NIX_LDFLAGS | sed "s,$out,$lib,g")"
+  '';
+
+  enableParallelBuilding = true;
+
+  buildInputs = [ icu expat zlib bzip2 python ]
+    ++ stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
+
+  configureScript = "./bootstrap.sh";
+  configureFlags = commonConfigureFlags ++ [
+    "--with-icu=${icu}"
+    "--with-python=${python}/bin/python"
+  ] ++ optional (toolset != null) "--with-toolset=${toolset}";
+
+  buildPhase = ''
+    ${stdenv.lib.optionalString (toolset == "clang") "unset NIX_ENFORCE_PURITY"}
+  '' + builder nativeB2Args;
+
+  installPhase = installer nativeB2Args;
+
+  outputs = [ "out" "dev" "lib" ];
+
+  crossAttrs = rec {
+    buildInputs = [ expat.crossDrv zlib.crossDrv bzip2.crossDrv ];
+    # all buildInputs set previously fell into propagatedBuildInputs, as usual, so we have to
+    # override them.
+    propagatedBuildInputs = buildInputs;
+    # We want to substitute the contents of configureFlags, removing thus the
+    # usual --build and --host added on cross building.
+    preConfigure = ''
+      export configureFlags="--without-icu ${concatStringsSep " " commonConfigureFlags}"
+      set -x
+      cat << EOF > user-config.jam
+      using gcc : cross : $crossConfig-g++ ;
+      EOF
+    '';
+    buildPhase = builder crossB2Args;
+    installPhase = installer crossB2Args;
+  };
+}