diff --git a/pkgs/development/tools/build-managers/gnumake-3.80/default.nix b/pkgs/development/tools/build-managers/gnumake-3.80/default.nix
index caedaac1496..2e343b4237b 100644
--- a/pkgs/development/tools/build-managers/gnumake-3.80/default.nix
+++ b/pkgs/development/tools/build-managers/gnumake-3.80/default.nix
@@ -6,5 +6,5 @@ stdenv.mkDerivation {
     url = http://nix.cs.uu.nl/dist/tarballs/make-3.80.tar.bz2;
     md5 = "0bbd1df101bc0294d440471e50feca71";
   };
-  patches = [./log.diff];
+  patches = [./log.patch];
 }
diff --git a/pkgs/development/tools/build-managers/gnumake/default.nix b/pkgs/development/tools/build-managers/gnumake/default.nix
index 2d83d10094d..9e751902922 100644
--- a/pkgs/development/tools/build-managers/gnumake/default.nix
+++ b/pkgs/development/tools/build-managers/gnumake/default.nix
@@ -6,5 +6,16 @@ stdenv.mkDerivation {
     url = http://nix.cs.uu.nl/dist/tarballs/make-3.81.tar.bz2;
     md5 = "354853e0b2da90c527e35aabb8d6f1e6";
   };
-  patches = [./log.diff];
+  
+  patches = [
+    # Provide nested log output for subsequent pretty-printing by
+    # nix-log2xml.
+    ./log.patch
+
+    # Purity: don't look for library dependencies (of the form
+    # `-lfoo') in /lib and /usr/lib.  It's a stupid feature anyway.
+    # Likewise, when searching for included Makefiles, don't look in
+    # /usr/include and friends.
+    ./impure-dirs.patch
+  ];
 }
diff --git a/pkgs/development/tools/build-managers/gnumake/impure-dirs.patch b/pkgs/development/tools/build-managers/gnumake/impure-dirs.patch
new file mode 100644
index 00000000000..433f61108db
--- /dev/null
+++ b/pkgs/development/tools/build-managers/gnumake/impure-dirs.patch
@@ -0,0 +1,34 @@
+diff -rc make-3.81-orig/read.c make-3.81/read.c
+*** make-3.81-orig/read.c	2006-03-17 15:24:20.000000000 +0100
+--- make-3.81/read.c	2007-05-24 17:16:31.000000000 +0200
+***************
+*** 99,107 ****
+--- 99,109 ----
+  #endif
+      INCLUDEDIR,
+  #ifndef _AMIGA
++ #if 0    
+      "/usr/gnu/include",
+      "/usr/local/include",
+      "/usr/include",
++ #endif    
+  #endif
+      0
+    };
+diff -rc make-3.81-orig/remake.c make-3.81/remake.c
+*** make-3.81-orig/remake.c	2006-03-20 03:36:37.000000000 +0100
+--- make-3.81/remake.c	2007-05-24 17:06:54.000000000 +0200
+***************
+*** 1452,1460 ****
+--- 1452,1462 ----
+    static char *dirs[] =
+      {
+  #ifndef _AMIGA
++ #if 0
+        "/lib",
+        "/usr/lib",
+  #endif
++ #endif
+  #if defined(WINDOWS32) && !defined(LIBDIR)
+  /*
+   * This is completely up to the user at product install time. Just define
diff --git a/pkgs/development/tools/build-managers/gnumake/log.diff b/pkgs/development/tools/build-managers/gnumake/log.patch
similarity index 100%
rename from pkgs/development/tools/build-managers/gnumake/log.diff
rename to pkgs/development/tools/build-managers/gnumake/log.patch