set rustflags to use lld

roc-lang · Dec 12, 2023 · 2172477 · 2172477
1 parent bb94059
commit 2172477
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diff --git a/flake.lock b/flake.lock
diff --git a/flake.nix b/flake.nix
@@ -126,6 +126,8 @@
 
           shellHook = ''
             export LLVM_SYS_${llvmMajorMinorStr}_PREFIX="${llvmPkgs.llvm.dev}"
+            # faster builds - see https://github.com/roc-lang/roc/blob/main/BUILDING_FROM_SOURCE.md#use-lld-for-the-linker
+            export RUSTFLAGS="-C link-arg=-fuse-ld=lld -C link-arg=-fuse-ld=lld $RUSTFLAGS"
             ${aliases}
           '';
         };