icewm: fix trailing -I compilation errors

Fixes

cc1plus: error: to generate dependencies you must specify either '-M' or
'-MM'

errors which occur while compiling due to trailing -I for libintl,
which appears to be found now but without requiring any include/link
flags.

pkgs/applications/window-managers/icewm/default.nix

@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch
 , asciidoc
 , cmake
 , expat
@@ -48,6 +49,15 @@ stdenv.mkDerivation rec {
     hash = "sha256-R06tiWS9z6K5Nbi+vvk7DyozpcFdrHleMeh7Iq/FfHQ=";
   };
 
+  patches = [
+    # https://github.com/ice-wm/icewm/pull/57
+    # Fix trailing -I that leads to "to generate dependencies you must specify either '-M' or '-MM'"
+    (fetchpatch {
+      url = "https://github.com/ice-wm/icewm/pull/57/commits/ebd2c45341cc31755758a423392a0f78a64d2d37.patch";
+      sha256 = "16m9znd3ijcfl7la3l27ac3clx8l9qng3fprkpxqcifd89ny1ml5";
+    })
+  ];
+
   nativeBuildInputs = [
     asciidoc
     cmake