CMake: Basic check for C++11, and setup global install paths.

CMakeLists.txt

@@ -3,4 +3,24 @@ cmake_minimum_required(VERSION 2.8)
 
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
+include(CheckIncludeFileCXX)
+check_include_file_cxx(initializer_list HAS_CXX11)
+if(NOT HAS_CXX11)
+  message(SEND_ERROR "Requires a C++11 compiler and standard library.")
+endif()
+
+# Set installation paths; these can be overridden in the cache.
+set(EXEC_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}"
+  CACHE PATH "Base installation path for executables."
+)
+set(BIN_INSTALL_DIR "${EXEC_INSTALL_PREFIX}/bin"
+  CACHE PATH "Installation directory for binaries (default: prefix/bin)."
+)
+set(LIB_INSTALL_DIR "${EXEC_INSTALL_PREFIX}/lib"
+  CACHE PATH "Installation directory for libraries (default: prefix/lib)."
+)
+set(INCLUDE_INSTALL_DIR "${EXEC_INSTALL_PREFIX}/include"
+  CACHE PATH "Installation directory for header files (default: prefix/include)."
+)
+
 add_subdirectory(c++)