refactor: Move ld=gold rule to mesonBuildLayer

Author: roberth

flake.nix

@@ -283,10 +283,6 @@
               # These attributes go right into `packages.<system>`.
               "${pkgName}" = nixpkgsFor.${system}.native.nixComponents.${pkgName};
               "${pkgName}-static" = nixpkgsFor.${system}.static.nixComponents.${pkgName};
-              /**
-                Nix and dependencies built with LLVM and Clang, maintainers:
-                @RossComputerGuy, Nix team
-               */
               "${pkgName}-llvm" = nixpkgsFor.${system}.llvm.nixComponents.${pkgName};
             }
             // lib.optionalAttrs supportsCross (flatMapAttrs (lib.genAttrs crossSystems (_: { })) (crossSystem: {}: {

packaging/dependencies.nix

@@ -97,6 +97,12 @@ let
       ];
       separateDebugInfo = !stdenv.hostPlatform.isStatic;
       hardeningDisable = lib.optional stdenv.hostPlatform.isStatic "pie";
+      env = prevAttrs.env or {}
+        // lib.optionalAttrs
+          (stdenv.isLinux
+            && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux")
+            && !(stdenv.hostPlatform.useLLVM or false))
+          { LDFLAGS = "-fuse-ld=gold"; };
     };
 
   mesonLibraryLayer = finalAttrs: prevAttrs:

src/libcmd/package.nix

@@ -76,10 +76,6 @@ mkMesonLibrary (finalAttrs: {
     (lib.mesonOption "readline-flavor" readlineFlavor)
   ];
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux") && !(stdenv.hostPlatform.useLLVM or false)) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
   };

src/libexpr-c/package.nix

@@ -47,10 +47,6 @@ mkMesonLibrary (finalAttrs: {
   mesonFlags = [
   ];
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux")) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
   };

src/libexpr-test-support/package.nix

@@ -51,10 +51,6 @@ mkMesonLibrary (finalAttrs: {
   mesonFlags = [
   ];
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux")) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
   };

src/libexpr-tests/package.nix

@@ -56,10 +56,6 @@ mkMesonExecutable (finalAttrs: {
   mesonFlags = [
   ];
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux")) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   passthru = {
     tests = {
       run = runCommand "${finalAttrs.pname}-run" {

src/libexpr/package.nix

@@ -96,8 +96,6 @@ mkMesonLibrary (finalAttrs: {
     # https://github.com/NixOS/nixpkgs/issues/86131.
     BOOST_INCLUDEDIR = "${lib.getDev boost}/include";
     BOOST_LIBRARYDIR = "${lib.getLib boost}/lib";
-  } // lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux") && !(stdenv.hostPlatform.useLLVM or false)) {
-    LDFLAGS = "-fuse-ld=gold";
   };
 
   meta = {

src/libfetchers-tests/package.nix

@@ -54,10 +54,6 @@ mkMesonExecutable (finalAttrs: {
   mesonFlags = [
   ];
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux")) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   passthru = {
     tests = {
       run = runCommand "${finalAttrs.pname}-run" {

src/libfetchers/package.nix

@@ -49,10 +49,6 @@ mkMesonLibrary (finalAttrs: {
       echo ${version} > ../../.version
     '';
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux") && !(stdenv.hostPlatform.useLLVM or false)) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
   };

src/libflake-c/package.nix

@@ -49,10 +49,6 @@ mkMesonLibrary (finalAttrs: {
   mesonFlags = [
   ];
 
-  env = lib.optionalAttrs (stdenv.isLinux && !(stdenv.hostPlatform.isStatic && stdenv.system == "aarch64-linux")) {
-    LDFLAGS = "-fuse-ld=gold";
-  };
-
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
   };