Add working serial port enumeration test

CMakeLists.txt

+cmake_minimum_required (VERSION 3.1)
+
+# Meta information about the project
+set(META_PROJECT_NAME        "serial_cpp")
+set(META_PROJECT_DESCRIPTION "Interfacing with a microcontroller over a serial connection")
+project (htmaa_shelves LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
+if(CMAKE_COMPILER_IS_GNUCXX)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Og")
+else()
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O1")
+endif()
+
+# Let the compiler decide what to inline at link time.
+cmake_policy(SET CMP0069 NEW)
+include(CheckIPOSupported)
+check_ipo_supported(RESULT ipo_supported OUTPUT error)
+if (ipo_supported)
+    message(STATUS "IPO / LTO enabled")
+else()
+    message(STATUS "IPO / LTO not supported: <${error}>")
+endif()
+
+add_library(serialport SHARED IMPORTED)
+# You can define two import-locations: one for debug and one for release.
+set_target_properties(serialport PROPERTIES IMPORTED_LOCATION /usr/local/Cellar/libserialport/0.1.1/lib/libserialport.dylib)
+target_include_directories(serialport INTERFACE /usr/local/Cellar/libserialport/0.1.1/include)
+
+add_executable(serial_cpp main.cpp)
+target_link_libraries(serial_cpp serialport)
+if (ipo_supported)
+    set_property(TARGET serial_cpp PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
+endif()
+

main.cpp

+// Use of libserialport based on https://gist.github.com/Nixes/78e401234e66aa131547d7b78135271c
+
+#include <iostream>
+#include <libserialport.h>
+
+void list_ports() {
+    int32_t i;
+    struct sp_port **ports;
+
+    sp_return error = sp_list_ports(&ports);
+    if (error == SP_OK) {
+        for (i = 0; ports[i]; i++) {
+            std::cout << "Found port: " << sp_get_port_name(ports[i]) << '\n';
+        }
+        sp_free_port_list(ports);
+    } else {
+        std::cout << "No serial devices detected\n";
+    }
+}
+
+int main() {
+    std::cout << "Searching for serial ports.\n";
+    list_ports();
+
+    return 0;
+}
+