Add support for CMake

cmake/FindSprout.cmake

@@ -0,0 +1,52 @@
+# - Find Sprout C++ library
+# Once done this will define
+#
+#  SPROUT_INCLUDE_DIRS   - where to find sprout/darkroom.hpp
+#  SPROUT_FOUND          - True if Sprout found.
+#
+#
+#=============================================================================
+# Copyright 2013 Naomasa Matsubayashi
+#
+#  Distributed under the Boost Software License, Version 1.0. (See accompanying
+#  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+set(_SPROUT_SEARCHES)
+
+# Search SPROUT_ROOT first if it is set.
+if(SPROUT_ROOT)
+  set(_SPROUT_SEARCH_ROOT PATHS ${SPROUT_ROOT} NO_DEFAULT_PATH)
+  list(APPEND _SPROUT_SEARCHES _SPROUT_SEARCH_ROOT)
+endif()
+
+# Normal search.
+set(_SPROUT_SEARCH_NORMAL
+  PATHS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Zlib;InstallPath]"
+        "$ENV{PROGRAMFILES}/zlib"
+        "/usr"
+        "/usr/local"
+        "/opt/sprout"
+  )
+list(APPEND _SPROUT_SEARCHES _SPROUT_SEARCH_NORMAL)
+
+# Try each search configuration.
+foreach(search ${_SPROUT_SEARCHES})
+  find_path(SPROUT_INCLUDE_DIR NAMES sprout/darkroom.hpp ${${search}} PATH_SUFFIXES include)
+endforeach()
+
+mark_as_advanced(SPROUT_INCLUDE_DIR)
+
+# handle the QUIETLY and REQUIRED arguments and set SPROUT_FOUND to TRUE if
+# all listed variables are TRUE
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS( SPROUT REQUIRED_VARS SPROUT_INCLUDE_DIR )
+
+if(SPROUT_FOUND)
+    set(SPROUT_INCLUDE_DIRS ${SPROUT_INCLUDE_DIR})
+endif()
+