1 files changed, 127 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/Libsystem/default.nix b/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/Libsystem/default.nix
new file mode 100644
index 000000000000..1e27ead69f1b
--- /dev/null
+++ b/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/Libsystem/default.nix
@@ -0,0 +1,127 @@
+{ stdenv, appleDerivation, cpio, xnu, Libc, Libm, libdispatch, cctools, Libinfo,
+  dyld, Csu, architecture, libclosure, CarbonHeaders, ncurses, CommonCrypto, copyfile,
+  removefile, libresolv, Libnotify, libplatform, libpthread, mDNSResponder, launchd, libutil }:
+
+appleDerivation rec {
+  phases = [ "unpackPhase" "installPhase" ];
+
+  nativeBuildInputs = [ cpio ];
+
+  installPhase = ''
+    export NIX_ENFORCE_PURITY=
+
+    mkdir -p $out/lib $out/include
+
+    # Set up our include directories
+    (cd ${xnu}/include && find . -name '*.h' -or -name '*.defs' | cpio -pdm $out/include)
+    cp ${xnu}/Library/Frameworks/Kernel.framework/Versions/A/Headers/Availability*.h $out/include
+    cp ${xnu}/Library/Frameworks/Kernel.framework/Versions/A/Headers/stdarg.h        $out/include
+
+    for dep in ${Libc} ${Libm} ${Libinfo} ${dyld} ${architecture} ${libclosure} ${CarbonHeaders} \
+               ${libdispatch} ${ncurses.dev} ${CommonCrypto} ${copyfile} ${removefile} ${libresolv} \
+               ${Libnotify} ${libplatform} ${mDNSResponder} ${launchd} ${libutil} ${libpthread}; do
+      (cd $dep/include && find . -name '*.h' | cpio -pdm $out/include)
+    done
+
+
+    (cd ${cctools.dev}/include/mach-o && find . -name '*.h' | cpio -pdm $out/include/mach-o)
+
+    cat <<EOF > $out/include/TargetConditionals.h
+    #ifndef __TARGETCONDITIONALS__
+    #define __TARGETCONDITIONALS__
+    #define TARGET_OS_MAC           1
+    #define TARGET_OS_WIN32         0
+    #define TARGET_OS_UNIX          0
+    #define TARGET_OS_EMBEDDED      0
+    #define TARGET_OS_IPHONE        0
+    #define TARGET_IPHONE_SIMULATOR 0
+    #define TARGET_OS_LINUX         0
+
+    #define TARGET_CPU_PPC          0
+    #define TARGET_CPU_PPC64        0
+    #define TARGET_CPU_68K          0
+    #define TARGET_CPU_X86          0
+    #define TARGET_CPU_X86_64       1
+    #define TARGET_CPU_ARM          0
+    #define TARGET_CPU_MIPS         0
+    #define TARGET_CPU_SPARC        0
+    #define TARGET_CPU_ALPHA        0
+    #define TARGET_RT_MAC_CFM       0
+    #define TARGET_RT_MAC_MACHO     1
+    #define TARGET_RT_LITTLE_ENDIAN 1
+    #define TARGET_RT_BIG_ENDIAN    0
+    #define TARGET_RT_64_BIT        1
+    #endif  /* __TARGETCONDITIONALS__ */
+    EOF
+
+    # The startup object files
+    cp ${Csu}/lib/* $out/lib
+
+    # We can't re-exported libsystem_c and libsystem_kernel directly,
+    # so we link against the central library here.
+    mkdir -p $out/lib/system
+    ld -macosx_version_min 10.7 -arch x86_64 -dylib \
+       -o $out/lib/system/libsystem_c.dylib \
+       /usr/lib/libSystem.dylib \
+       -reexported_symbols_list ${./system_c_symbols}
+
+    ld -macosx_version_min 10.7 -arch x86_64 -dylib \
+       -o $out/lib/system/libsystem_kernel.dylib \
+       /usr/lib/libSystem.dylib \
+       -reexported_symbols_list ${./system_kernel_symbols}
+
+    # The umbrella libSystem also exports some symbols,
+    # but we don't want to pull in everything from the other libraries.
+    ld -macosx_version_min 10.7 -arch x86_64 -dylib \
+       -o $out/lib/libSystem_internal.dylib \
+       /usr/lib/libSystem.dylib \
+       -reexported_symbols_list ${./system_symbols}
+
+    # We used to determine these impurely based on the host system, but then when we got some 10.12 Hydra boxes,
+    # one of them accidentally built this derivation, referenced libsystem_symptoms.dylib, which doesn't exist on
+    # 10.11, and then broke all subsequent builds on 10.11. By picking a 10.11 compatible subset of the libraries,
+    # we avoid scary impurity issues like that.
+    libs=$(cat ${./reexported_libraries} | grep -v '^#')
+
+    for i in $libs; do
+      if [ "$i" != "/usr/lib/system/libsystem_kernel.dylib" ] && [ "$i" != "/usr/lib/system/libsystem_c.dylib" ]; then
+        args="$args -reexport_library $i"
+      fi
+    done
+
+    ld -macosx_version_min 10.7 -arch x86_64 -dylib \
+       -o $out/lib/libSystem.B.dylib \
+       -compatibility_version 1.0 \
+       -current_version 1226.10.1 \
+       -reexport_library $out/lib/system/libsystem_c.dylib \
+       -reexport_library $out/lib/system/libsystem_kernel.dylib \
+       -reexport_library $out/lib/libSystem_internal.dylib \
+       $args
+
+    ln -s libSystem.B.dylib $out/lib/libSystem.dylib
+
+    # Set up links to pretend we work like a conventional unix (Apple's design, not mine!)
+    for name in c dbm dl info m mx poll proc pthread rpcsvc util gcc_s.10.4 gcc_s.10.5; do
+      ln -s libSystem.dylib $out/lib/lib$name.dylib
+    done
+
+    # This probably doesn't belong here, but we want to stay similar to glibc, which includes resolv internally...
+    cp ${libresolv}/lib/libresolv.9.dylib $out/lib/libresolv.9.dylib
+    resolv_libSystem=$(otool -L "$out/lib/libresolv.9.dylib" | tail -n +3 | grep -o "$NIX_STORE.*-\S*") || true
+    echo $libs
+
+    chmod +w $out/lib/libresolv.9.dylib
+    install_name_tool \
+      -id $out/lib/libresolv.9.dylib \
+      -change "$resolv_libSystem" $out/lib/libSystem.dylib \
+      $out/lib/libresolv.9.dylib
+    ln -s libresolv.9.dylib $out/lib/libresolv.dylib
+  '';
+
+  meta = with stdenv.lib; {
+    description = "The Mac OS libc/libSystem (impure symlinks to binaries with pure headers)";
+    maintainers = with maintainers; [ copumpkin gridaphobe ];
+    platforms   = platforms.darwin;
+    license     = licenses.apsl20;
+  };
+}