treewide: more accurate pandoc availability check #404599

pkgs/build-support/trivial-builders/default.nix

···
         '';
 
       checkPhase =
-        # GHC (=> shellcheck) isn't supported on some platforms (such as risc-v)
-        # but we still want to use writeShellApplication on those platforms
         let
-          shellcheckSupported =
-            lib.meta.availableOn stdenv.buildPlatform shellcheck-minimal.compiler
-            && (builtins.tryEval shellcheck-minimal.compiler.outPath).success;
           excludeFlags = lib.optionals (excludeShellChecks != [ ]) [
             "--exclude"
             (lib.concatStringsSep "," excludeShellChecks)
           ];
-          shellcheckCommand = lib.optionalString shellcheckSupported ''
+          # GHC (=> shellcheck) isn't supported on some platforms (such as risc-v)
+          # but we still want to use writeShellApplication on those platforms
+          shellcheckCommand = lib.optionalString shellcheck-minimal.compiler.bootstrapAvailable ''
             # use shellcheck which does not include docs
             # pandoc takes long to build and documentation isn't needed for just running the cli
             ${lib.getExe shellcheck-minimal} ${

pkgs/by-name/fl/flac/package.nix

···
   lib,
   libogg,
   nix-update-script,
-  pandoc,
+  buildPackages,
   pkg-config,
   stdenv,
   versionCheckHook,
-  enableManpages ? !stdenv.buildPlatform.isRiscV64 && !stdenv.buildPlatform.isLoongArch64,
+  enableManpages ? buildPackages.pandoc.compiler.bootstrapAvailable,
 }:
 stdenv.mkDerivation (finalAttrs: {
   pname = "flac";
···
     doxygen
     graphviz
     pkg-config
-  ] ++ lib.optional enableManpages pandoc;
+  ] ++ lib.optional enableManpages buildPackages.pandoc;
 
   buildInputs = [ libogg ];
 

pkgs/by-name/ni/nixos-firewall-tool/package.nix

···
   lib,
   bash,
   installShellFiles,
-  shellcheck-minimal,
+  buildPackages,
 }:
 
 stdenvNoCC.mkDerivation {
···
   strictDeps = true;
   buildInputs = [ bash ];
   nativeBuildInputs = [ installShellFiles ];
-  nativeCheckInputs = [ shellcheck-minimal ];
+  nativeCheckInputs = [ buildPackages.shellcheck-minimal ];
 
   postPatch = ''
     patchShebangs --host nixos-firewall-tool
···
     installShellCompletion nixos-firewall-tool.{bash,fish}
   '';
 
-  # Skip shellcheck if GHC is not available, see writeShellApplication.
-  doCheck =
-    lib.meta.availableOn stdenvNoCC.buildPlatform shellcheck-minimal.compiler
-    && (builtins.tryEval shellcheck-minimal.compiler.outPath).success;
+  doCheck = buildPackages.shellcheck-minimal.compiler.bootstrapAvailable;
   checkPhase = ''
     shellcheck nixos-firewall-tool
   '';

pkgs/development/compilers/ghc/8.10.7.nix

···
 
       # Our Cabal compiler name
       haskellCompilerName = "ghc-${version}";
+
+      bootstrapAvailable = lib.meta.availableOn stdenv.buildPlatform bootPkgs.ghc;
     };
 
     meta = {

pkgs/development/compilers/ghc/common-hadrian.nix

···
       # TODO(@sternenseemann): there's no stage0:exe:haddock target by default,
       # so haddock isn't available for GHC cross-compilers. Can we fix that?
       hasHaddock = stdenv.hostPlatform == stdenv.targetPlatform;
+
+      bootstrapAvailable = lib.meta.availableOn stdenv.buildPlatform bootPkgs.ghc;
     };
 
     meta = {

pkgs/development/compilers/ghc/common-make-native-bignum.nix

···
 
       # Our Cabal compiler name
       haskellCompilerName = "ghc-${version}";
+
+      bootstrapAvailable = lib.meta.availableOn stdenv.buildPlatform bootPkgs.ghc;
     };
 
     meta = {

pkgs/development/libraries/gssdp/1.6.nix

···
   pkg-config,
   gobject-introspection,
   vala,
-  enableManpages ? !stdenv.buildPlatform.isLoongArch64 && !stdenv.buildPlatform.isRiscV64,
-  pandoc,
+  buildPackages,
+  enableManpages ? buildPackages.pandoc.compiler.bootstrapAvailable,
   gi-docgen,
   python3,
   libsoup_3,
···
     vala
     gi-docgen
     python3
-  ] ++ lib.optionals enableManpages [ pandoc ];
+  ] ++ lib.optionals enableManpages [ buildPackages.pandoc ];
 
   buildInputs = [
     libsoup_3

pkgs/development/libraries/nuspell/default.nix

···
   stdenv,
   fetchFromGitHub,
   cmake,
-  pandoc,
+  buildPackages,
   pkg-config,
   icu,
   catch2_3,
-  enableManpages ? !stdenv.buildPlatform.isRiscV64 && !stdenv.buildPlatform.isLoongArch64,
+  enableManpages ? buildPackages.pandoc.compiler.bootstrapAvailable,
 }:
 
 stdenv.mkDerivation rec {
···
       pkg-config
     ]
     ++ lib.optionals enableManpages [
-      pandoc
+      buildPackages.pandoc
     ];
 
   buildInputs = [ catch2_3 ];