chrootenv: use meson

pkgs/build-support/build-fhs-userenv/chrootenv/default.nix

@@ -1,19 +1,15 @@
-{ stdenv, pkgconfig, glib }:
+{ stdenv, meson, ninja, pkgconfig, glib }:
 
 stdenv.mkDerivation {
   name = "chrootenv";
+  src = ./.;
 
-  nativeBuildInputs = [ pkgconfig ];
+  nativeBuildInputs = [ meson ninja pkgconfig ];
   buildInputs = [ glib ];
 
-  buildCommand = ''
-    cc ${./chrootenv.c} $(pkg-config --cflags --libs glib-2.0) -o $out
-    ${stdenv.cc.bintools.bintools}/bin/strip $out
-  '';
-
   meta = with stdenv.lib; {
     description = "Setup mount/user namespace for FHS emulation";
-    license = licenses.free;
+    license = licenses.mit;
     maintainers = with maintainers; [ yegortimoshenko ];
     platforms = platforms.linux;
   };

pkgs/build-support/build-fhs-userenv/chrootenv/meson.build

@@ -0,0 +1,5 @@
+project('chrootenv', 'c')
+
+glib = dependency('glib-2.0')
+
+executable('chrootenv', 'chrootenv.c', dependencies: [glib], install: true)

pkgs/build-support/build-fhs-userenv/default.nix

@@ -28,7 +28,7 @@ in runCommand name {
   passthru = passthru // {
     env = runCommand "${name}-shell-env" {
       shellHook = ''
-        exec ${chrootenv} ${init runScript} "$(pwd)"
+        exec ${chrootenv}/bin/chrootenv ${init runScript} "$(pwd)"
       '';
     } ''
       echo >&2 ""
@@ -41,7 +41,7 @@ in runCommand name {
   mkdir -p $out/bin
   cat <<EOF >$out/bin/${name}
   #! ${stdenv.shell}
-  exec ${chrootenv} ${init runScript} "\$(pwd)" "\$@"
+  exec ${chrootenv}/bin/chrootenv ${init runScript} "\$(pwd)" "\$@"
   EOF
   chmod +x $out/bin/${name}
   ${extraInstallCommands}