Enable verbose compile command in create template.

* Add "--disable-silent-rules" option to autotools-based configure
  options.
  - Also add comments to notify user removing unrecognized configure
    options.
* Add "-DCMAKE_VERBOSE_MAKEFILE=ON" to cmake-based configure options.

Library/Homebrew/cmd/create.rb

@@ -139,10 +139,16 @@ class FormulaCreator
     <% if  mode == :cmake %>
         system "cmake", ".", *std_cmake_args
     <% elsif  mode == :autotools %>
-        system "./configure", "--disable-debug", "--disable-dependency-tracking",
+        # Remove unrecognized options if warned by configure
+        system "./configure", "--disable-debug",
+                              "--disable-dependency-tracking",
+                              "--disable-silent-rules",
                               "--prefix=\#{prefix}"
     <% else  %>
-        system "./configure", "--disable-debug", "--disable-dependency-tracking",
+        # Remove unrecognized options if warned by configure
+        system "./configure", "--disable-debug",
+                              "--disable-dependency-tracking",
+                              "--disable-silent-rules",
                               "--prefix=\#{prefix}"
         # system "cmake", ".", *std_cmake_args
     <% end  %>

Library/Homebrew/formula.rb

@@ -308,6 +308,7 @@ class Formula
       -DCMAKE_INSTALL_PREFIX=#{prefix}
       -DCMAKE_BUILD_TYPE=None
       -DCMAKE_FIND_FRAMEWORK=LAST
+      -DCMAKE_VERBOSE_MAKEFILE=ON
       -Wno-dev
     ]
   end