2 files changed, 20 insertions, 0 deletions
diff --git a/pkgs/os-specific/bsd/netbsd/pkgs/netbsdSetupHook/package.nix b/pkgs/os-specific/bsd/netbsd/pkgs/netbsdSetupHook/package.nix
new file mode 100644
index 0000000000000..e80571f2bf9a2
--- /dev/null
+++ b/pkgs/os-specific/bsd/netbsd/pkgs/netbsdSetupHook/package.nix
@@ -0,0 +1,5 @@
+{ makeSetupHook }:
+
+makeSetupHook {
+    name = "netbsd-setup-hook";
+  } ./setup-hook.sh
diff --git a/pkgs/os-specific/bsd/netbsd/pkgs/netbsdSetupHook/setup-hook.sh b/pkgs/os-specific/bsd/netbsd/pkgs/netbsdSetupHook/setup-hook.sh
new file mode 100644
index 0000000000000..fa8b19e7d8ce4
--- /dev/null
+++ b/pkgs/os-specific/bsd/netbsd/pkgs/netbsdSetupHook/setup-hook.sh
@@ -0,0 +1,15 @@
+mergeNetBSDSourceDir() {
+  # merge together all extra paths
+  # there should be a better way to do this
+  chmod -R u+w $BSDSRCDIR
+  for path in $extraPaths; do
+    rsync -Er --chmod u+w $path/ $BSDSRCDIR/
+  done
+}
+
+addNetBSDMakeFlags() {
+  makeFlags="INCSDIR=${!outputDev}/include $makeFlags"
+}
+
+postUnpackHooks+=(mergeNetBSDSourceDir)
+preConfigureHooks+=(addNetBSDMakeFlags)