From d97c564c9f9b332079c8684533702f230666b4da Mon Sep 17 00:00:00 2001
From: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
Date: Thu, 18 Mar 2021 00:13:43 +0100
Subject: [PATCH] solo5: install opam bindings for all targets that are enabled

Reuse the configuration generated by configure.sh to dynamically install
the bindings for all enabled targets. A bit of a hack grepping for the
respective lines in the Makeconf which incidentally also parse as shell.

Alternative would be to check for the target libs.
---
 pkgs/os-specific/solo5/default.nix | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/pkgs/os-specific/solo5/default.nix b/pkgs/os-specific/solo5/default.nix
index baba0ecdf0a..4b5c1232a86 100644
--- a/pkgs/os-specific/solo5/default.nix
+++ b/pkgs/os-specific/solo5/default.nix
@@ -1,6 +1,16 @@
 { lib, stdenv, fetchurl, pkg-config, libseccomp, util-linux, qemu }:
 
-let version = "0.6.8";
+let
+  version = "0.6.8";
+  # list of all theoretically available targets
+  targets = [
+    "genode"
+    "hvt"
+    "muen"
+    "spt"
+    "virtio"
+    "xen"
+  ];
 in stdenv.mkDerivation {
   pname = "solo5";
   inherit version;
@@ -29,9 +39,15 @@ in stdenv.mkDerivation {
     export DESTDIR=$out
     export PREFIX=$out
     make install-tools
-    ${lib.optionalString stdenv.hostPlatform.isLinux "make ${
-      (lib.concatMapStringsSep " " (x: "install-opam-${x}") [ "hvt" "spt" ])
-    }"}
+
+    # get CONFIG_* vars from Makeconf which also parse in sh
+    grep '^CONFIG_' Makeconf > nix_tmp_targetconf
+    source nix_tmp_targetconf
+    # install opam / pkg-config files for all enabled targets
+    ${lib.concatMapStrings (bind: ''
+      [ -n "$CONFIG_${lib.toUpper bind}" ] && make install-opam-${bind}
+    '') targets}
+
     runHook postInstall
   '';