Improve the CMake project wizard template

Fixes out-of-the-box deprecation warnings, the template now specifies a
minimum CMake version of 3.10

Allows project names containing spaces by using freemarker syntax to
remove them where necessary in the CMakeLists.txt file.

Demonstrates how to implement the common idiom of configuration header
files.

cmake/org.eclipse.cdt.cmake.core/templates/simple/CMakeLists.txt

@@ -1,5 +1,15 @@
-cmake_minimum_required (VERSION 2.6)
+cmake_minimum_required(VERSION 3.10)
 
-project (${projectName})
+# Set some basic project attributes
+project (${projectName?replace(" ", "_")}
+	VERSION 0.1
+	DESCRIPTION "A Hello World Project")
 
-add_executable(${projectName} ${projectName}.cpp)
+# This project will output an executable file
+add_executable(${r"${PROJECT_NAME}"} ${projectName?replace(" ", "_")}.cpp)
+
+# Create a simple configuration header
+configure_file(config.h.in config.h)
+
+# Include the configuration header in the build
+target_include_directories(${r"${PROJECT_NAME}"} PUBLIC "${r"${PROJECT_BINARY_DIR}"}")

cmake/org.eclipse.cdt.cmake.core/templates/simple/config.h.in

@@ -0,0 +1,2 @@
+#define ${projectName?replace(" ", "_")}_VERSION_MAJOR @${projectName?replace(" ", "_")}_VERSION_MAJOR@
+#define ${projectName?replace(" ", "_")}_VERSION_MINOR @${projectName?replace(" ", "_")}_VERSION_MINOR@

cmake/org.eclipse.cdt.cmake.core/templates/simple/main.cpp

@@ -1,7 +1,8 @@
 #include <iostream>
-using namespace std;
+#include "config.h"
 
 int main(int argc, char **argv) {
-	cout << "Hello world";
+	std::cout << "Hello World" << std::endl;
+	std::cout << "Version " << ${projectName?replace(" ", "_")}_VERSION_MAJOR << "." << ${projectName?replace(" ", "_")}_VERSION_MINOR << std::endl;
 	return 0;
 }

cmake/org.eclipse.cdt.cmake.core/templates/simple/manifest.xml

@@ -1,7 +1,9 @@
 <templateManifest>
 	<file src="/templates/simple/CMakeLists.txt"
 		dest="/${projectName}/CMakeLists.txt"/>
+	<file src="/templates/simple/config.h.in"
+		dest="/${projectName}/config.h.in"/>
 	<file src="/templates/simple/main.cpp"
-		dest="/${projectName}/${projectName}.cpp"
+		dest="/${projectName}/${projectName?replace(" ", "_")}.cpp"
 		open="true"/>
 </templateManifest>