refind: install man pages (#439147)

pkgs/by-name/re/refind/package.nix

@@ -9,6 +9,7 @@
   withSbsigntool ? false, # currently, cross compiling sbsigntool is broken, so default to false
   sbsigntool,
   makeWrapper,
+  installShellFiles,
 }:
 
 let
@@ -45,6 +46,11 @@ stdenv.mkDerivation rec {
     hash = "sha256-99k86A2na4bFZygeoiW2qHkHzob/dyM8k1elIsEVyPA=";
   };
 
+  outputs = [
+    "out"
+    "man"
+  ];
+
   patches = [
     # Removes hardcoded toolchain for aarch64, allowing successful aarch64 builds.
     ./0001-toolchain.patch
@@ -53,7 +59,11 @@ stdenv.mkDerivation rec {
     ./0002-preserve-dates.patch
   ];
 
-  nativeBuildInputs = [ makeWrapper ];
+  nativeBuildInputs = [
+    makeWrapper
+    installShellFiles
+  ];
+
   buildInputs = [ gnu-efi_3 ];
 
   hardeningDisable = [ "stackprotector" ];
@@ -111,6 +121,7 @@ stdenv.mkDerivation rec {
     # docs
     install -D -m0644 docs/refind/* $out/share/refind/docs/html/
     install -D -m0644 docs/Styles/* $out/share/refind/docs/Styles/
+    installManPage docs/man/*.8
     install -D -m0644 README.txt $out/share/refind/docs/README.txt
     install -D -m0644 NEWS.txt $out/share/refind/docs/NEWS.txt
     install -D -m0644 BUILDING.txt $out/share/refind/docs/BUILDING.txt