CMake build system

cmake/platforms/unix.cmake

@@ -0,0 +1,21 @@
+# Unix specific settings (this includes macOS and emscripten)
+
+if(NOT UNIX)
+    return()
+endif()
+
+list(APPEND SYSTEM_PLATFORM_SOURCES ${SOURCE_DIR}/sys/sys_unix.c)
+
+if(EMSCRIPTEN)
+    list(APPEND SYSTEM_PLATFORM_SOURCES ${SOURCE_DIR}/sys/con_passive.c)
+else()
+    list(APPEND SYSTEM_PLATFORM_SOURCES ${SOURCE_DIR}/sys/con_tty.c)
+endif()
+
+if(USE_HTTP)
+    list(APPEND CLIENT_PLATFORM_SOURCES ${SOURCE_DIR}/client/cl_http_curl.c)
+endif()
+
+list(APPEND COMMON_LIBRARIES dl m)
+
+list(APPEND CLIENT_DEFINITIONS USE_ICON)