【发布时间】：2018-02-20 12:13:16
【问题描述】：
我目前正在使用 Kate 和 Arduino IDE 为 Arduinos 开发一个库（实际上很少有 Arduino 特定，但只需将示例从 A-IDE 上传到物理硬件很容易）。但是现在我已经到了 Kate 使用起来相当麻烦的地步，所以我尝试切换到 CLion，问题是我无法在其中进行 linting 和编译。我尝试使用Arduino plugin for CLion，它适用于小示例，但对我来说失败了，请记住，Arduino IDE 编译我的代码并上传它没有问题。
这是我的 CMakeFiles.txt：
cmake_minimum_required(VERSION 2.8.4)
set(ARDUINO_SDK_PATH ${HOME}/arduino-1.8.2/)
set(PROJECT_NAME MyLibrary)
project(${PROJECT_NAME})
set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/cmake/ArduinoToolchain.cmake)
add_library(./modules/lib1/lib1.h)
add_library(./modules/lib2/lib2.h)
add_library(./modules/lib3/lib3.h)
add_library(./modules/lib4/lib4.h)
set(EXAMPLE2_SKETCH ./examples/example2/example2.ino)
set(EXAMPLE1_SKETCH ./examples/example1/example1.ino)
generate_arduino_firmware(EXAMPLE2_SKETCH)
generate_arduino_firmware(EXAMPLE1_SKETCH)
文件夹结构：
MyLibrary
├── drivers
│ └── HWLIB
│ ├── HWLIB.cpp
│ └── HWLIB.h
├── examples
│ ├── example1
│ │ └── example1.ino
│ └── example2
│ └── example2.ino
├── modules
│ ├── lib1
│ │ ├── lib1.cpp
│ │ └── lib1.h
│ ├── lib2
│ │ ├── lib2.cpp
│ │ └── lib2.h
│ ├── lib3
│ │ ├── lib3.cpp
│ │ └── lib3.h
│ └── lib4
│ ├── lib4.cpp
│ └── lib4.h
└── MyLibrary.h
1：在尝试刷新 cmakefile 之后，CMake 抱怨几乎每一行，这没有任何意义：
CMake Warning (dev) at CMakeLists.txt:7 (add_library):
Policy CMP0037 is not set: Target names should not be reserved and should
match a validity pattern. Run "cmake --help-policy CMP0037" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
The target name "./modules/lib1/lib1.h" is reserved or not valid
for certain CMake features, such as generator expressions, and may result
in undefined behavior.
This warning is for project developers. Use -Wno-dev to suppress it.
You have called ADD_LIBRARY for library ./modules/lib1/lib1.h without any source files. This typically indicates a problem with your CMakeLists.txt file
CMake Warning (dev) at CMakeLists.txt:8 (add_library):
Policy CMP0037 is not set: Target names should not be reserved and should
match a validity pattern. Run "cmake --help-policy CMP0037" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
The target name "./modules/lib2/lib2.h" is reserved or
not valid for certain CMake features, such as generator expressions, and
may result in undefined behavior.
This warning is for project developers. Use -Wno-dev to suppress it.
You have called ADD_LIBRARY for library ./modules/lib2/lib2.h without any source files. This typically indicates a problem with your CMakeLists.txt file
CMake Warning (dev) at CMakeLists.txt:9 (add_library):
Policy CMP0037 is not set: Target names should not be reserved and should
match a validity pattern. Run "cmake --help-policy CMP0037" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
The target name "./modules/lib3/lib3.h" is reserved or not valid
for certain CMake features, such as generator expressions, and may result
in undefined behavior.
This warning is for project developers. Use -Wno-dev to suppress it.
You have called ADD_LIBRARY for library ./modules/lib3/lib3.h without any source files. This typically indicates a problem with your CMakeLists.txt file
CMake Warning (dev) at CMakeLists.txt:10 (add_library):
Policy CMP0037 is not set: Target names should not be reserved and should
match a validity pattern. Run "cmake --help-policy CMP0037" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
The target name "./modules/lib4/lib4.h" is reserved or not
valid for certain CMake features, such as generator expressions, and may
result in undefined behavior.
This warning is for project developers. Use -Wno-dev to suppress it.
You have called ADD_LIBRARY for library ./modules/lib4/TooSigning.h without any source files. This typically indicates a problem with your CMakeLists.txt file
-- Generating NODE_SKETCH
CMake Error at cmake/Platform/Arduino.cmake:2130 (message):
ALL_SRCS not set: must define SRCS or SKETCH for target NODE_SKETCH
Call Stack (most recent call first):
cmake/Platform/Arduino.cmake:498 (required_variables)
CMakeLists.txt:22 (generate_arduino_firmware)
“您为库 ./modules/lib3/lib3.h 调用了 ADD_LIBRARY，但没有任何源文件。”但是头文件指定了来源？
2：使用该 CMakefile CLion 无法在模块文件夹中找到标准库和其他库。例如，在查看 lib1.h 时，我看到这些错误（标记为红色）：
#include "modules/lib2/lib2.h"
^ Cannot find 'modules'
和
uint8_t variable = 0;
^ Can't resolve type 'uint8_t'
Serial、memmove、malloc 等也是如此。
有什么想法可以解决这些问题并使用合适的 IDE 来开发我的项目吗？
【问题讨论】：
-
"You have called ADD_LIBRARY for library ./modules/lib3/lib3.h without any source files." but the header file specifies the source?- 技术上 - 是的，但通常 - 不是。 头文件指定库的接口。但是库本身应该实现接口，也就是头文件中描述的函数。这就是为什么普通库需要至少有一个.c（或.cpp）文件的原因。如果库的接口不包含非inline函数，则该库称为interface-only，这种情况比较特殊。 -
@Tsyvarev 我指定源的意思是它包含
#include "lib3.cpp"。所以它不仅仅是界面？ -
包含
.cpp文件是一种非常奇怪的做法。通常只包含.h/.hpp。 -
修改后，我看到错误消息稍微说明了另一件事：
add_library的第一个参数是 target 名称，而不是文件。但剩下的参数应该是源文件。像这样的东西：add_library(lib1.h ./modules/lib1/lib1.cpp)。找不到头文件的问题通常由include_directories 或target_include_directories解决。顺便说一句，几乎任何 CMake 手册都描述了库的创建。我建议在继续之前阅读它。 -
您使用的带有 Adruino 插件的项目间接引用了 that project 作为 Adruino 的 CMake 支持提供者。您在创建项目时是否尝试过遵循其文档？