nixpkgs/pkgs/applications/misc/fehlstart/use-nix-profiles.patch


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--- fehlstart-9f4342d75ec5e2a46c13c99c34894bc275798441-src/fehlstart.c	1970-01-01 01:00:01.000000000 +0100
+++ fehlstart.c	2016-08-10 12:21:11.231638418 +0200
@@ -779,8 +779,15 @@
     read_settings(setting_file, &settings);
     update_commands();
     g_hash_table_foreach(action_map, update_launcher, NULL);
-    add_launchers(STR_S(APPLICATIONS_DIR_0));
-    add_launchers(STR_S(APPLICATIONS_DIR_1));
-    add_launchers(STR_S(USER_APPLICATIONS_DIR));
+    const char* nixprofiles = getenv("NIX_PROFILES");
+    if(nixprofiles != NULL) {
+      const char* pch = strtok(nixprofiles, " ");
+      while (pch != NULL)
+      {
+          String nix_dir = str_concat((String) { pch, strlen(pch), false },STR_S("/share/applications"));
+          add_launchers(nix_dir);
+          pch = strtok(NULL, " ");
+      }
+    }
     return NULL;
 }