indentlog: + hello example + cmake install attempt

example/CMakeLists.txt

@@ -7,6 +7,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
 
 #include(cmake/FindSphinx.cmake)
 
+add_subdirectory(hello)
 add_subdirectory(ex1)
 add_subdirectory(ex2)
 add_subdirectory(ex3)

example/hello/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_executable(hello hello.cpp)
+xo_include_options(hello)

example/hello/hello.cpp

@@ -0,0 +1,5 @@
+#include <iostream>
+
+int main(int argc, char ** argv) {
+    std::cout << "Hello, world!" << std::endl;
+}