started updating examples for cmake v3 syntax

01-basic/A-hello-cmake/CMakeLists.txt

@@ -1,7 +1,7 @@
 # Set the minimum version of CMake that can be used
 # To find the cmake version run
 # $ cmake --version
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 # Set the project name
 project (hello_cmake)

01-basic/B-hello-headers/CMakeLists.txt

@@ -1,17 +1,11 @@
 # Set the minimum version of CMake that can be used
 # To find the cmake version run
 # $ cmake --version
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 # Set the project name
 project (hello_headers)
 
-# Set the direcoties that should be included in the build command
-# when running g++ these will be included as -I/directory/path/
-include_directories(
-    ${PROJECT_SOURCE_DIR}/inc
-    )
-
 # Create a sources variable with a link to all cpp files to compile
 set(SOURCES
     src/Hello.cpp
@@ -20,4 +14,10 @@ set(SOURCES
 
 
 # Add an executable with the above sources
-add_executable(${PROJECT_NAME} ${SOURCES})
+add_executable(hello_headers ${SOURCES})
+
+# Set the direcoties that should be included in the build command for this target
+# when running g++ these will be included as -I/directory/path/
+target_include_directories(hello_headers
+    PRIVATE ${PROJECT_SOURCE_DIR}/inc
+)

01-basic/B-hello-headers/README.adoc

@@ -55,19 +55,6 @@ directory where you ran the cmake command.
 |PROJECT_BINARY_DIR |The build directory for the current project.
 |=======================================================================
 
-## Including Directories
-
-When you have different include folders, you can make your compiler aware of them using the
-+include_directories()+ function. This will add these directories to the
-compiler with the -I flag e.g. `-I/directory/path`
-
-[source,cmake]
-----
-include_directories(
-    ${PROJECT_SOURCE_DIR}/inc
-    )
-----
-
 ## Source Files Variable
 
 Creating a variable which includes the source files allows you to be
@@ -96,6 +83,20 @@ file(GLOB SOURCES "src/*.cpp")
 ----
 ====
 
+## Including Directories
+
+When you have different include folders, you can make your compiler aware of them using the
++target_include_directories()+ function. When compiling this target this will add these directories to the compiler with the -I flag e.g. `-I/directory/path`
+
+[source,cmake]
+----
+target_include_directories(target
+    PRIVATE ${PROJECT_SOURCE_DIR}/inc
+    )
+----
+
+The +PRIVATE+ identifier specifies the scope of the include. This is important for libraries and is exlpained in the next example. More details on the function is available link:https://cmake.org/cmake/help/v3.0/command/target_include_directories.html[here]
+
 # Building the Example
 
 ## Standard Output

01-basic/C-static-library/CMakeLists.txt

@@ -1,11 +1,7 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 project(hello_library)
 
-include_directories(
-    ${PROJECT_SOURCE_DIR}/inc
-    )
-
 ############################################################
 # Create a library
 ############################################################
@@ -18,6 +14,11 @@ set(library_SOURCES
 #Generate the static library from the library sources
 add_library(hello_library STATIC ${library_SOURCES})
 
+target_include_directories(hello_library
+    PUBLIC ${PROJECT_SOURCE_DIR}/inc
+)
+
+
 ############################################################
 # Create an executable
 ############################################################
@@ -32,5 +33,5 @@ add_executable(hello_binary ${binary_SOURCES})
 
 # link the new hello_library target with the hello_binary target
 target_link_libraries( hello_binary
-    hello_library
+    PRIVATE hello_library
 )

01-basic/C-static-library/README.adoc

@@ -46,6 +46,20 @@ add_library(hello_library STATIC ${library_SOURCES})
 This will be used to create a static library with the name libhello_library.a with
 the sources from the +library_SOURCES+ variable.
 
+## Populating Including Directories
+
+In this example, we include directories in the library using the +target_include_directories()+ function with the scope set to +PUBLIC+. This will cause the included directory used in the following places:
+
+* When compiling the library
+* When compiling any additional target that links the library.
+
+The meaning of scopes are:
+
+* +PRIVATE_ - the directory is added to this target's include directories
+* +INTERFACE+ - the directory is added to the include directores for any targets that link this library.
+* +PUBLIC+ - As above, it is included int his library and also any targets that link this library.
+
+
 ## Linking a Library
 
 When creating an executable that will use your library you must tell the compiler
@@ -56,7 +70,7 @@ about the library. This can be done using the +target_link_library()+ function.
 add_executable(hello_binary ${binary_SOURCES})
 
 target_link_libraries( hello_binary
-    hello_library
+   PRIVATE  hello_library
 )
 ----
 

01-basic/D-shared-library/CMakeLists.txt

@@ -1,11 +1,7 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 project(hello_library)
 
-include_directories(
-    ${PROJECT_SOURCE_DIR}/inc
-    )
-
 ############################################################
 # Create a library
 ############################################################
@@ -17,6 +13,11 @@ set(library_SOURCES
 
 #Generate the shared library from the library sources
 add_library(hello_library SHARED ${library_SOURCES})
+add_library(hello::library ALIAS hello_library)
+
+target_include_directories(hello_library
+    PUBLIC ${PROJECT_SOURCE_DIR}/inc
+)
 
 ############################################################
 # Create an executable
@@ -32,5 +33,5 @@ add_executable(hello_binary ${binary_SOURCES})
 
 # link the new hello_library target with the hello_binary target
 target_link_libraries( hello_binary
-    hello_library
+    PRIVATE hello::library
 )

01-basic/D-shared-library/README.adoc

@@ -6,7 +6,9 @@ toc::[]
 
 # Introduction
 
-Shows a hello world example which first creates and links a shared library
+Shows a hello world example which first creates and links a shared library.
+
+This also shows how to create an link:https://cmake.org/cmake/help/v3.0/manual/cmake-buildsystem.7.html#alias-targets[alias target]
 
 The files in this tutorial are below:
 
@@ -48,6 +50,17 @@ add_library(hello_library SHARED ${library_SOURCES})
 This will be used to create a shared library with the name libhello_library.so with
 the sources from the +library_SOURCES+ variable.
 
+## Alias Target
+
+As the name suggests an alias target is an alternative name for a target that can be used instead of the real target name in read-only contexts.
+
+[source,cmake]
+----
+add_library(hello::library ALIAS hello_library)
+----
+
+As show below, this allows you to reference the target using the alias name when linking it against other targets.
+
 ## Linking a Shared Library
 
 Linking a shared library is the same as linking a static library. When creating your
@@ -58,12 +71,11 @@ executable use the the +target_link_library()+ function to point to your library
 add_executable(hello_binary ${binary_SOURCES})
 
 target_link_libraries( hello_binary
-    hello_library
+    hello::library
 )
 ----
 
-This tells CMake to link the hello_library against the hello_binary executable
-during link time.
+This tells CMake to link the hello_library against the hello_binary executable using the alias target name.
 
 An example of this being called by the linker is
 

01-basic/E-installing/CMakeLists.txt

@@ -1,11 +1,7 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 project(cmake_examples_install)
 
-include_directories(
-    ${PROJECT_SOURCE_DIR}/inc
-    )
-
 ############################################################
 # Create a library
 ############################################################
@@ -18,6 +14,11 @@ set(library_SOURCES
 #Generate the shared library from the library sources
 add_library(cmake_examples_inst SHARED ${library_SOURCES})
 
+
+target_include_directories(cmake_examples_inst
+    PUBLIC ${PROJECT_SOURCE_DIR}/inc
+)
+
 ############################################################
 # Create an executable
 ############################################################
@@ -32,7 +33,7 @@ add_executable(cmake_examples_inst_bin ${binary_SOURCES})
 
 # link the new hello_library target with the hello_binary target
 target_link_libraries( cmake_examples_inst_bin
-    cmake_examples_inst
+    PRIVATE cmake_examples_inst
 )
 
 ############################################################

01-basic/F-build-type/CMakeLists.txt

@@ -1,7 +1,7 @@
 # Set the minimum version of CMake that can be used
 # To find the cmake version run
 # $ cmake --version
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 # Set a default build type if none was specified
 if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)

01-basic/G-compile-flags/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 
 # Set a default C++ compile flag
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DEX2" CACHE STRING "Set C++ Compiler Flags" FORCE)
@@ -8,3 +8,7 @@ project (compile_flags)
 
 # Add an executable
 add_executable(cmake_examples_compile_flags main.cpp)
+
+target_compile_defintions(cmake_examples_compile_flags 
+    PRIVATE EX3
+)

01-basic/G-compile-flags/README.adoc

@@ -26,7 +26,7 @@ $ tree
 
 ## Set C++ Flag
 
-Similar to the build type a C++ compiler flag can be set using the following methods.
+Similar to the build type a global C++ compiler flag can be set using the following methods.
 
   - Using a gui tool such as ccmake / cmake-gui
 
@@ -60,6 +60,19 @@ are used to force this variable to be set in the CMakeCache.txt file.
 For more details, see https://cmake.org/cmake/help/v3.0/command/set.html[here]
 ====
 
+## Set Per-Target C++ Flags
+
+Once set the +CMAKE_C_FLAGS+ and +CMAKE_CXX_FLAGS+ will set a compler flag / definiton globally for all targets in this directory or any included sub-directories. To set a compiler definitons for a specific target you can use the +target_compile_defintions()+ link:https://cmake.org/cmake/help/v3.0/command/target_compile_definitions.html[function]. This will cause the compiler to add the definition +-DEX3+ when compiling the target.
+
+[source,cmake]
+----
+target_compile_defintions(cmake_examples_compile_flags
+    PRIVATE EX3
+)
+----
+
+Depending on the scope this defintion may also be included in any targets that link this target. For compiler options you can also use the +target_compile_options()+ link:https://cmake.org/cmake/help/v3.0/command/target_compile_options.html[function].
+
 # Building the Example
 
 [source,bash]