Added unit testing support using check.

cmake/Modules/FindCheck.cmake

@@ -0,0 +1,90 @@
+# - Try to find Check
+# Once done this will define
+#
+#  CHECK_FOUND - system has Check
+#  CHECK_INCLUDE_DIRS - the Check include directory
+#  CHECK_LIBRARIES - Link these to use Check
+#  CHECK_DEFINITIONS - Compiler switches required for using Check
+#
+#  Copyright (c) 2010 Andreas Schneider <mail@cynapses.org>
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+if (CHECK_LIBRARIES AND CHECK_INCLUDE_DIRS)
+  # in cache already
+  set(CHECK_FOUND TRUE)
+else (CHECK_LIBRARIES AND CHECK_INCLUDE_DIRS)
+  # use pkg-config to get the directories and then use these values
+  # in the FIND_PATH() and FIND_LIBRARY() calls
+  if (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
+    include(UsePkgConfig)
+    pkgconfig(check _CHECK_INCLUDEDIR _CHECK_LIBDIR _CHECK_LDFLAGS _CHECK_CFLAGS)
+  else (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
+    find_package(PkgConfig)
+    if (PKG_CONFIG_FOUND)
+      pkg_check_modules(_CHECK check)
+    endif (PKG_CONFIG_FOUND)
+  endif (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
+
+  find_path(CHECK_INCLUDE_DIR
+    NAMES
+      check.h
+    PATHS
+      ${_CHECK_INCLUDEDIR}
+      /usr/include
+      /usr/local/include
+      /opt/local/include
+      /sw/include
+  )
+  mark_as_advanced(CHECK_INCLUDE_DIR)
+
+  find_library(CHECK_LIBRARY
+    NAMES
+      check
+    PATHS
+      ${_CHECK_LIBDIR}
+      /usr/lib
+      /usr/local/lib
+      /opt/local/lib
+      /sw/lib
+  )
+  mark_as_advanced(CHECK_LIBRARY)
+
+  if (CHECK_LIBRARY)
+    set(CHECK_FOUND TRUE CACHE INTERNAL "Wether the check library has been found" FORCE)
+  endif (CHECK_LIBRARY)
+
+  set(CHECK_INCLUDE_DIRS
+    ${CHECK_INCLUDE_DIR}
+  )
+
+  if (CHECK_FOUND)
+    set(CHECK_LIBRARIES
+      ${CHECK_LIBRARIES}
+      ${CHECK_LIBRARY}
+    )
+  endif (CHECK_FOUND)
+
+  if (CHECK_INCLUDE_DIRS AND CHECK_LIBRARIES)
+     set(CHECK_FOUND TRUE)
+  endif (CHECK_INCLUDE_DIRS AND CHECK_LIBRARIES)
+
+  if (CHECK_FOUND)
+    if (NOT Check_FIND_QUIETLY)
+      message(STATUS "Found Check: ${CHECK_LIBRARIES}")
+    endif (NOT Check_FIND_QUIETLY)
+  else (CHECK_FOUND)
+    if (Check_FIND_REQUIRED)
+      message(FATAL_ERROR "Could not find Check")
+    endif (Check_FIND_REQUIRED)
+  endif (CHECK_FOUND)
+
+  # show the CHECK_INCLUDE_DIRS and CHECK_LIBRARIES variables only in the advanced view
+  mark_as_advanced(CHECK_INCLUDE_DIRS CHECK_LIBRARIES)
+
+endif (CHECK_LIBRARIES AND CHECK_INCLUDE_DIRS)
+