Commits on Dec 13, 2018

1. stdenv: implement crossOverlays …

   crossOverlays only apply to the packages being built, not the build
   packages. It is useful when you don’t care what is used to build your
   packages, just what is being built. The idea relies heavily on the
   cross compiling infrastructure. Using this implies that we need to
   create a cross stdenv.
   
   (cherry picked from commit a3a6ad7)

   

   matthewbauer authored and Ericson2314 committed Dec 13, 2018
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2. stdenv/adapters.nix: fixup makeStaticBinaries …

   - makeStaticBinaries don’t work on Darwin (no stable ABI!)
   - Need to make sure NIX_CFLAGS_LINK appends
   - isStatic is not used anymore
   
   (cherry picked from commit 8726f6a)

   

   matthewbauer authored and Ericson2314 committed Dec 13, 2018
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3. darwin/libiconv: fix static/shared logic …

   The conditional was incorrect - postInstall script should only hsppen
   when enableShared = true.
   
   (cherry picked from commit 5e06294)

   

   matthewbauer authored and Ericson2314 committed Dec 13, 2018
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4. zlib: clean up static/shared distincion …

   This is kind of a mess, but basically:
   
   - static=true, shared=true means to build statically but move it to
     the static output
   - static=true, shared=false means to build statically and leave it in
     the main output
   - static=false, shared=true means to not build static at all
   
   Confusingly, the old default was static=true, shared=true even though
   static=false? Still can’t figure out what was meant by that.
   
   (cherry picked from commit e999def)

   

   matthewbauer authored and Ericson2314 committed Dec 13, 2018
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5. ncurses: make shared linking optinoal …

   when enableShared = false, we set --without-shared flag.
   
   (cherry picked from commit 53a6789)

   

   matthewbauer authored and Ericson2314 committed Dec 13, 2018
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6. top-level/stage.nix: add static overlay …

   Adds the static overlay that can be used to build Nixpkgs statically.
   Can be used like:
   
     nix build pkgsStatic.hello
   
   Not all packages build, as some rely on dynamic linking.
   
   (cherry picked from commit 6d90a8b)

   

   matthewbauer authored and Ericson2314 committed Dec 13, 2018
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7. pkgsStatic: Add warning saying this is a provisional backport

   

   Ericson2314 committed Dec 13, 2018
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8. Merge pull request #51957 from obsidiansystems/crossOverlays-for-18.09 …

   pkgsStatic for 18.09

   

   Ericson2314 committed Dec 13, 2018
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