Silence -Werror,-Wunknown-pragmas

Change-Id: If726008f6755db59b01784ad6b479bbfe2d23e96

external/clucene/patches/clucene-warnings.patch

@@ -69,7 +69,7 @@
  #endif
 --- src/core/CLucene/util/Array.h	2012-02-22 12:37:22.510637696 +0000
 +++ src/core/CLucene/util/Array.h	2012-02-22 12:38:33.714444884 +0000
-@@ -7,6 +7,13 @@
+@@ -7,6 +7,14 @@
  #ifndef _lucene_util_Array_
  #define _lucene_util_Array_
  
@@ -77,6 +77,7 @@
 +# pragma GCC diagnostic push
 +# pragma GCC diagnostic ignored "-Wshadow"
 +# pragma GCC diagnostic ignored "-Wunused-parameter"
++# pragma GCC diagnostic ignored "-Wpragmas"
 +# pragma GCC diagnostic ignored "-Wmisleading-indentation"
 +#endif
 +