ENH: updte to lower case and using ADD_SUBDIRECTORY

Example/CMakeLists.txt

@@ -1,9 +1,10 @@
 # The name of our project is "HELLO".  CMakeLists files in this project can
 # refer to the root source directory of the project as ${HELLO_SOURCE_DIR} and
 # to the root binary directory of the project as ${HELLO_BINARY_DIR}.
-PROJECT(HELLO)
+project (HELLO)
 
 # Recurse into the "Hello" and "Demo" subdirectories.  This does not actually
 # cause another cmake executable to run.  The same process will walk through
 # the project's entire directory structure.
-SUBDIRS(Hello Demo)
+add_subdirectory (Hello)
+add_subdirectory (Demo)

Example/Demo/CMakeLists.txt

@@ -1,12 +1,12 @@
 # Make sure the compiler can find include files from our Hello library.
-INCLUDE_DIRECTORIES(${HELLO_SOURCE_DIR}/Hello)
+include_directories (${HELLO_SOURCE_DIR}/Hello)
 
 # Make sure the linker can find the Hello library once it is built.
-LINK_DIRECTORIES(${HELLO_BINARY_DIR}/Hello)
+link_directories (${HELLO_BINARY_DIR}/Hello)
 
 # Add executable called "helloDemo" that is built from the source files
 # "demo.cxx" and "demo_b.cxx".  The extensions are automatically found.
-ADD_EXECUTABLE(helloDemo demo.cxx demo_b.cxx)
+add_executable (helloDemo demo.cxx demo_b.cxx)
 
 # Link the executable to the Hello library.
-TARGET_LINK_LIBRARIES(helloDemo Hello)
+target_link_libraries (helloDemo Hello)

Example/Hello/CMakeLists.txt

@@ -1,3 +1,3 @@
 # Create a library called "Hello" which includes the source file "hello.cxx".
 # The extension is already found.  Any number of sources could be listed here.
-ADD_LIBRARY(Hello hello.cxx)
+add_library (Hello hello.cxx)