Cmake 使用目标target_include_directories时无法指定包含目录

Cmake Cannot specify include directories when use target target_include_directories

本文关键字：包含目 directories 目标 target include Cmake      更新时间：2023-10-16

我在我的项目中使用子模块GitHub，现在我想使用target_include_directories将文件包含在我的项目类中

这是我的 cmake 配置

cmake_minimum_required(VERSION 3.9)
project(SpyCBlock)
set(CMAKE_CXX_STANDARD 14)
#bitcoin rpc lib
find_library(bitcoinapi 0.3 REQUIRED)
target_include_directories(rapidjson PUBLIC include/rapidjson/include)
target_include_directories(spycblockrpc PUBLIC include/spycblockrpc)
target_include_directories(btccryptography PUBLIC include/bitcoin-cryptography-library)
add_executable(
${PROJECT_NAME}
#other inclusion file cpp
#cpp-properties file include
include/cpp-properties/src/Properties.cpp
include/cpp-properties/src/PropertiesParser.cpp
include/cpp-properties/src/PropertiesUtils.cpp
#include bitcoin-cryptography-library
include/bitcoin-cryptography-library/cpp/Sha256.cpp
include/bitcoin-cryptography-library/cpp/Sha256Hash.cpp
include/bitcoin-cryptography-library/cpp/Utils.cpp
#include spycblocrpc
include/spycblockrpc/core/graph/TransactionGraph.cpp
include/spycblockrpc/core/graph/WrapperInformations.cpp
include/spycblockrpc/ConfiguratorSingleton.cpp
include/spycblockrpc/commands/DecodeScriptCommand.cpp
include/spycblockrpc/commands/DecodeRawTransaction.cpp
include/spycblockrpc/commands/HeightBlockchainCommand.cpp
include/spycblockrpc/commands/DecodeBlockAtIndexCommand.cpp
)
#bitcoin rpc lib
target_link_libraries(SpyCBlockTests bitcoinapi)
target_link_libraries(${PROJECT_NAME} bitcoinapi)

运行CMake时，我有此错误

Starting to parse CMake project.
CMake Error at CMakeLists.txt:20 (target_include_directories):
Cannot specify include directories for target "rapidjson" which is not
built by this project.

CMake Error at CMakeLists.txt:22 (target_include_directories):
Cannot specify include directories for target "spycblockrpc" which is not
built by this project.

CMake Error at CMakeLists.txt:24 (target_include_directories):
Cannot specify include directories for target "btccryptography" which is
not built by this project.

CMake Error at CMakeLists.txt:26 (target_compile_definitions):
Cannot specify compile definitions for target "cppproperties" which is not
built by this project.

我是C++和cmake的新手，我不明白我错了什么

我想添加这个问题的解决方案，正如注释中所建议的，代码有两个问题：

target_include_directories(${PROJECT_NAME} PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/include/rapidjson/include)
  1. 目标的第一个参数必须是可执行文件的名称，因此在本例中为 SpyCBlock
  2. 第二个问题是目标在宣布目标之前对目标的定义，target_include_directories(SpyCBlock ...)是在add_executable(${PROJECT_NAME} ...)之前定义的

一个最小正确的示例是：

add_executable(
${PROJECT_NAME}

#other inclusion file cpp

#cpp-properties file include
include/cpp-properties/src/Properties.cpp
include/cpp-properties/src/PropertiesParser.cpp
include/cpp-properties/src/PropertiesUtils.cpp
#include bitcoin-cryptography-library
include/bitcoin-cryptography-library/cpp/Sha256.cpp
include/bitcoin-cryptography-library/cpp/Sha256Hash.cpp
include/bitcoin-cryptography-library/cpp/Utils.cpp
#include spycblocrpc
include/spycblockrpc/core/graph/TransactionGraph.cpp
include/spycblockrpc/core/graph/WrapperInformations.cpp
include/spycblockrpc/ConfiguratorSingleton.cpp
include/spycblockrpc/commands/DecodeScriptCommand.cpp
include/spycblockrpc/commands/DecodeRawTransaction.cpp
include/spycblockrpc/commands/HeightBlockchainCommand.cpp
include/spycblockrpc/commands/DecodeBlockAtIndexCommand.cpp
)

target_include_directories(${PROJECT_NAME} PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/include/rapidjson/include)

现在我可以像这样包含库<bitcoin-cryptography-library/Sha256.h>.

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