Linux: Enable Kaldi2Reader build and test

- Will build Kaldi2Reader if found at a default location.
- Set Kaldi2Reader end-to-end test to run on Linux GPU nightly.

Tests/EndToEndTests/Speech/LSTM/Truncated-Kaldi/testcases.yml

@@ -1,9 +1,8 @@
 dataDir: ../../Data
 tags:
-     # running on every BVT job in 'L' (LSTM) leg in Debug-GPU and Release-CPU configurations:
-     - bvt-l  (build_sku == 'gpu') and ((flavor=='debug') ^ (device=='cpu')) and (os=='disabled')
+     # TODO run on more SKUs and/or BVT
      # running unconditionally on every Nightly job in 'L' leg
-     - nightly-l (build_sku == 'gpu') and (os=='disabled')
+     - nightly-l (build_sku == 'gpu') and (os=='linux')
 
 testCases:
   CNTK Run must be completed:

configure

@@ -64,7 +64,7 @@ default_openblas=""
 
 # NOTE: Will get compilation errors with cuda-6.0
 default_cudas="cuda-7.5 cuda-7.0 cuda-6.5"
-default_kaldis="kaldi-trunk"
+default_kaldis="kaldi-trunk kaldi-c024e8aa"
 default_gdks=". gdk/usr"
 default_cubs="cub-1.4.1"
 default_cudnns="cudnn-4.0"
@@ -600,6 +600,17 @@ then
     fi
 fi
 
+if test x$kaldi_path = x
+then
+    kaldi_path=$(find_kaldi)
+    if test x$kaldi_path = x ; then
+        echo Cannot locate Kaldi files
+        echo Kaldi2Reader will NOT be built.
+    else
+        echo Found Kaldi at $kaldi_path
+    fi
+fi
+
 config=$build_top/Config.make
 echo Generating $config
 echo "#Configuration file for cntk" > $config