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bazel: fix build on darwin #80635

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Feb 22, 2020
Merged

bazel: fix build on darwin #80635

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12 changes: 10 additions & 2 deletions pkgs/development/tools/build-managers/bazel/default.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -326,6 +326,14 @@ stdenv.mkDerivation rec {
postPatch = let

darwinPatches = ''
bazelLinkFlags () {
eval set -- "$NIX_LDFLAGS"
local flag
for flag in "$@"; do
printf ' -Wl,%s' "$flag"
done
}

# Disable Bazel's Xcode toolchain detection which would configure compilers
# and linkers from Xcode instead of from PATH
export BAZEL_USE_CPP_ONLY_TOOLCHAIN=1
Expand All @@ -335,14 +343,14 @@ stdenv.mkDerivation rec {

# Framework search paths aren't added by bintools hook
# https://github.com/NixOS/nixpkgs/pull/41914
export NIX_LDFLAGS="$NIX_LDFLAGS -F${CoreFoundation}/Library/Frameworks -F${CoreServices}/Library/Frameworks -F${Foundation}/Library/Frameworks"
export NIX_LDFLAGS+=" -F${CoreFoundation}/Library/Frameworks -F${CoreServices}/Library/Frameworks -F${Foundation}/Library/Frameworks"

# libcxx includes aren't added by libcxx hook
# https://github.com/NixOS/nixpkgs/pull/41589
export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -isystem ${libcxx}/include/c++/v1"

# don't use system installed Xcode to run clang, use Nix clang instead
sed -i -E "s;/usr/bin/xcrun (--sdk macosx )?clang;${stdenv.cc}/bin/clang $NIX_CFLAGS_COMPILE $NIX_LDFLAGS -framework CoreFoundation;g" \
sed -i -E "s;/usr/bin/xcrun (--sdk macosx )?clang;${stdenv.cc}/bin/clang $NIX_CFLAGS_COMPILE $(bazelLinkFlags) -framework CoreFoundation;g" \
scripts/bootstrap/compile.sh \
src/tools/xcode/realpath/BUILD \
src/tools/xcode/stdredirect/BUILD \
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