LINK：当使用 IMPORTED_IMPLIB 和 IMPORTED_LOCATION 的相对路径时，cmake 项目中出现致命错误 LNK1104

Question

cmake_minimum_required(VERSION 3.25)

project(GarbageCollector C)

set(CMAKE_C_STANDARD 23)

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bin)

add_library(collections SHARED IMPORTED)

set_target_properties(collections PROPERTIES
        IMPORTED_IMPLIB "lib/Release/Collections.lib"
        IMPORTED_LOCATION "bin/Debug/Collections.dll")
add_executable(gc ./main.c)

target_link_libraries(gc collections)

LINK：致命错误 LNK1104。说无法打开 Collections.lib

当我尝试 cmake --build build 我得到链接：致命错误 LNK1104.

Answer 1

IMPORTED_IMPLIB

和

IMPORTED_LOCATION

都需要完整（绝对）路径。

如果您想将路径固定到某物，请参阅以下变量并使用适合您上下文需要的变量：

• CMAKE_SOURCE_DIR

• PROJECT_SOURCE_DIR

• <PROJECT-NAME>_SOURCE_DIR

• CMAKE_CURRENT_SOURCE_DIR

• CMAKE_CURRENT_LIST_DIR

例如

set_target_properties(collections PROPERTIES
    IMPORTED_IMPLIB "${PROJECT_SOURCE_DIR}/lib/Release/Collections.lib"
    IMPORTED_LOCATION "${PROJECT_SOURCE_DIR}/bin/Debug/Collections.dll"
)