automake: Disabling tests on mips.

There is a test that fails on mips, and that breaks the nix build.
The text does not exist anymore in automake upstream git, so the next
version may not need this mips-specific disabling.

pkgs/development/tools/misc/automake/automake-1.11.x.nix

@@ -19,7 +19,8 @@ stdenv.mkDerivation rec {
 
   buildInputs = [perl autoconf makeWrapper];
 
-  inherit doCheck;
+  # Bug in a test in automake. Upstream git already fixed it removing the test.
+  doCheck = if stdenv.isMips then false else doCheck;
 
   # Disable indented log output from Make, otherwise "make.test" will
   # fail.

pkgs/development/tools/misc/automake/automake-1.12.x.nix

@@ -23,7 +23,8 @@ stdenv.mkDerivation rec {
     sed -i -e 's|t/aclocal7.sh||' Makefile.in
   '';
 
-  inherit doCheck;
+  # Bug in a test in automake. Upstream git already fixed it removing the test.
+  doCheck = if stdenv.isMips then false else doCheck;
 
   # The test suite can run in parallel.
   enableParallelBuilding = true;