acpid: fix cross

pkgs/os-specific/linux/acpid/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, autoreconfHook }:
 
 stdenv.mkDerivation rec {
   name = "acpid-2.0.29";
@@ -8,6 +8,15 @@ stdenv.mkDerivation rec {
     sha256 = "1zq38al07z92r2md18zivrzgjqnn7m2wahdpgri6wijwjwkknl2q";
   };
 
+  nativeBuildInputs = [ autoreconfHook ];
+
+  postPatch = ''
+    substituteInPlace configure.ac \
+      --replace "AC_FUNC_MALLOC" "" \
+      --replace "AC_FUNC_REALLOC" "" \
+      --replace "strrchr strtol" "strrchr strtol malloc realloc"
+  '';
+
   meta = with stdenv.lib; {
     homepage = http://tedfelix.com/linux/acpid-netlink.html;
     description = "A daemon for delivering ACPI events to userspace programs";