Add target main and build

cmake/Common.cmake

@@ -0,0 +1,16 @@
+include(CMakeParseArguments)
+
+# set_outdir(ARCHIVE_OUTPUT_DIRECTORY
+#            LIBRARY_OUTPUT_DIRECTORY
+#            RUNTIME_OUTPUT_DIRECTORY)
+macro(set_outdir ARCHIVE_OUTPUT_DIRECTORY LIBRARY_OUTPUT_DIRECTORY RUNTIME_OUTPUT_DIRECTORY)
+  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${ARCHIVE_OUTPUT_DIRECTORY})
+  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_DIRECTORY})
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${RUNTIME_OUTPUT_DIRECTORY})
+  foreach(CONFIG ${CMAKE_CONFIGURATION_TYPES})
+    string(TOUPPER ${CONFIG} CONFIG)
+    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_${CONFIG} ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY})
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_${CONFIG} ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
+    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${CONFIG} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
+  endforeach()
+endmacro()

cmake/DetectCXX11.cmake

@@ -0,0 +1,37 @@
+
+if(MSVC)
+
+# Support For C++11/14/17 Features (Modern C++)
+#   https://msdn.microsoft.com/en-us/library/hh567368.aspx
+# MSVC_VERSION:
+#   https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
+
+if(NOT (MSVC_VERSION LESS 1600))
+  message(STATUS "Visual Studio >= 2010, MSVC >= 10.0")
+else()
+  message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
+endif()
+
+else()
+
+set(CXX_FLAGS_EXTRA "")
+
+include(CheckCXXCompilerFlag)
+check_cxx_compiler_flag("-std=c++11" COMPILER_SUPPORTS_CXX11)
+check_cxx_compiler_flag("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
+if(COMPILER_SUPPORTS_CXX11)
+  set(CXX_FLAGS_EXTRA "-std=c++11")
+  message(STATUS "Using flag -std=c++11")
+elseif(COMPILER_SUPPORTS_CXX0X)
+  set(CXX_FLAGS_EXTRA "-std=c++0x")
+  message(STATUS "Using flag -std=c++0x")
+else()
+  message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
+endif()
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAGS_EXTRA}")
+
+# Ensure access this in sub directories
+set(CXX_FLAGS_EXTRA "${CXX_FLAGS_EXTRA}" CACHE STRING "Value of the extra cxx flags.")
+
+endif()