Change default CMakeLists.txt (#43)

* Change default CMakeLists.txt to add Ubuntu18 support

* Change cmake minimum required version

templates/app/CMakeLists.txt.tmpl

@@ -1,9 +1,9 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.15)
 project(runner LANGUAGES CXX)
 
 set(BINARY_NAME "{{projectName}}")
 
-cmake_policy(SET CMP0079 NEW)
+cmake_policy(SET CMP0063 NEW)
 
 set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
 

templates/app/flutter/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.15)
 
 set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
 
@@ -59,16 +59,16 @@ list(APPEND CPP_WRAPPER_SOURCES_CORE
   "core_implementations.cc"
   "standard_codec.cc"
 )
-list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/")
+list_prepend(CPP_WRAPPER_SOURCES_CORE "${WRAPPER_ROOT}/")
 list(APPEND CPP_WRAPPER_SOURCES_PLUGIN
   "plugin_registrar.cc"
 )
-list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/")
+list_prepend(CPP_WRAPPER_SOURCES_PLUGIN "${WRAPPER_ROOT}/")
 list(APPEND CPP_WRAPPER_SOURCES_APP
   "flutter_engine.cc"
   "flutter_view_controller.cc"
 )
-list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/")
+list_prepend(CPP_WRAPPER_SOURCES_APP "${WRAPPER_ROOT}/")
 
 # Wrapper sources needed for a plugin.
 add_library(flutter_wrapper_plugin STATIC

templates/app/runner/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.15)
 project(runner LANGUAGES CXX)
 
 if(FLUTTER_TARGET_BACKEND_TYPE MATCHES "gbm")