epics-base: fix compilation due to GNUMake 4.4 upgrade

pkgs/epnix/epics-base/default.nix

@@ -8,12 +8,12 @@
   fetchpatch,
   version,
   hash,
-  readline,
   local_config_site ? {},
   local_release ? {},
 }:
 with lib; let
   older = versionOlder version;
+  atLeast = versionAtLeast version;
 
   generateConf = (epnixLib.formats.make {}).generate;
 
@@ -37,11 +37,19 @@ in
       inherit hash;
     };
 
-    patches = optionals (older "7.0.5") [
-      # Support "undefine MYVAR" in convertRelease.pl
-      # Fixed by commit 79d7ac931502e1c25b247a43b7c4454353ac13a6
-      ./handle-make-undefine-variable.patch
-    ];
+    patches =
+      (optionals (atLeast "7.0.0") [
+        # From: https://github.com/epics-base/epics-base/pull/395
+        (fetchpatch {
+          url = "https://github.com/epics-base/epics-base/commit/d87fd0db0124faf450cff93226ae6a2cc02f02bf.patch";
+          hash = "sha256-BQWFOPCfRjSowDSAbqe8ClqEWT1OtfbgRh4k5jmAjpU=";
+        })
+      ])
+      ++ (optionals (older "7.0.5") [
+        # Support "undefine MYVAR" in convertRelease.pl
+        # Fixed by commit 79d7ac931502e1c25b247a43b7c4454353ac13a6
+        ./handle-make-undefine-variable.patch
+      ]);
 
     # "build" as in Nix terminology (the build machine)
     build_config_site =