Question

的问题：

运行cmake生成带有STATIC库的项目后，ninja和mingw32-make都无法在链接时生成目标。对于SHARED库或可执行文件，这个设置工作正常。我已经为“忍者”和“＃34;和＃34; MinGW Makefiles＆＃34;发电机：

忍者输出：

[2/2] Linking CXX static library hello_wsl.lib
FAILED: hello_wsl.lib
cmd.exe /C "cd . && "C:\Program Files\CMake\bin\cmake.exe" -E remove hello_wsl.lib && "" qc hello_wsl.lib  CMakeFiles/hello_wsl.dir/lib_hello_world.cpp.obj && cd ."
"""" no se reconoce como un comando interno o externo,
programa o archivo por lotes ejecutable.
ninja: build stopped: subcommand failed.

mingw32-make输出：

Scanning dependencies of target hello_wsl
[ 50%] Building CXX object CMakeFiles/hello_wsl.dir/lib_hello_world.cpp.obj
[100%] Linking CXX static library hello_wsl.lib
Error running link command: El parámetro no es correcto
CMakeFiles\hello_wsl.dir\build.make:93: recipe for target 'hello_wsl.lib' failed
mingw32-make.exe[2]: *** [hello_wsl.lib] Error 2
CMakeFiles\Makefile2:66: recipe for target 'CMakeFiles/hello_wsl.dir/all' failed
mingw32-make.exe[1]: *** [CMakeFiles/hello_wsl.dir/all] Error 2
Makefile:82: recipe for target 'all' failed
mingw32-make.exe: *** [all] Error 2

另请参阅＆＃34; project_root \ build \ CMakeFiles \ hello_wsl.dir \ link.txt＆＃34;由＆＃34; MinGW Makefiles生成＆＃34;：

"" qc hello_wsl.lib  CMakeFiles/hello_wsl.dir/lib_hello_world.cpp.obj

示例项目，逐步重现问题＆＃34; MinGW Makefiles＆＃34;：

安装CMake 3.8.0
安装MinGWx64 6.3 Windows二进制文件（I've downloaded them from here）
为此项目创建一个根文件夹，我将在此示例中将其命名为project_root。
在里面创建这些子文件夹：
1. project_root \构建
2. project_root \包括
3. project_root \包括\ lib_hello_world

创建这些文件：

project_root \包括\ lib_hello_world \ lib_hello_world.cpp：

#include <iostream>

class HelloWorldClass{
    HelloWorldClass(){
        std::cout << "Hello, world!" << std::endl;
    }
};

project_root \包括\ lib_hello_world \的CMakeLists.txt：

cmake_minimum_required(VERSION 3.8.0)
project(lib_hello_world)

add_library(lib_hello_world STATIC lib_hello_world.cpp)

project_root \ toolchain.cmake：

# Target system (cross compile)
set(CMAKE_SYSTEM_NAME WindowsStore)
set(CMAKE_SYSTEM_VERSION 10.0)

# BIN utils
SET(CMAKE_AR      "$ENV{MINGW_W64_BIN_DIR}/ar.exe")
SET(CMAKE_OBJCOPY "$ENV{MINGW_W64_BIN_DIR}/objcopy.exe")
SET(CMAKE_OBJDUMP "$ENV{MINGW_W64_BIN_DIR}/objdump.exe")
SET(CMAKE_RANLIB  "$ENV{MINGW_W64_BIN_DIR}/ranlib.exe")
SET(CMAKE_NM      "$ENV{MINGW_W64_BIN_DIR}/nm.exe")
SET(CMAKE_STRIP   "$ENV{MINGW_W64_BIN_DIR}/strip.exe")

# C compiler
SET(CMAKE_C_COMPILER "$ENV{MINGW_W64_BIN_DIR}/gcc.exe")

# CXX compiler
SET(CMAKE_CXX_COMPILER "$ENV{MINGW_W64_BIN_DIR}/g++.exe")

# LINKER
SET(CMAKE_LINKER "$ENV{MINGW_W64_BIN_DIR}/ld.bfd.exe")

project_root \ configure.bat：

@ECHO OFF
SETLOCAL
@ECHO OFF
REM Change these variables to the corresponding paths on your own system
SET "CMAKE_EXECUTABLE=C:\Program Files\CMake\bin\cmake.exe"
SET "MINGW_W64_BIN_DIR=C:/Program Files/MinGWx64/bin"
CD "%~dp0\build"
CALL "%CMAKE_EXECUTABLE%" "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON" "-DCMAKE_BUILD_TYPE=Debug" -G "MinGW Makefiles" "-DCMAKE_MAKE_PROGRAM='%MINGW_W64_BIN_DIR%/mingw32-make.exe'" "-DCMAKE_TOOLCHAIN_FILE='%~dp0/toolchain.cmake'" "%~dp0/include/lib_hello_world"
ENDLOCAL

project_root \的build.bat：

@ECHO OFF
SETLOCAL
@ECHO OFF
REM Change this variable to the corresponding path on your own system
SET "MINGW_W64_BIN_DIR=C:/Program Files/MinGWx64/bin"
CD "%~dp0\build"
CALL "%MINGW_W64_BIN_DIR%/mingw32-make.exe"
ENDLOCAL

最后，打开CMD并运行命令：

project_root\configure.bat
project_root\build.bat

这是我发现的粗略修复/解决方法：

创建此文件： project_root \ fix.bat：

@ECHO OFF
SETLOCAL
@ECHO OFF

MOVE "%~dp0\build\CMakeCache.txt" ".\"
RMDIR "%~dp0\build" /S /Q
MKDIR "%~dp0\build"
MOVE "%~dp0\CMakeCache.txt" ".\build\"

ENDLOCAL

重现错误后，打开CMD并运行：

project_root\fix.bat
project_root\configure.bat
project_root\build.bat

ninja输出（成功链接）：

[2/2] Linking CXX static library hello_wsl.lib

修复后mingw32-make（成功链接）：

Scanning dependencies of target hello_wsl
[ 50%] Building CXX object CMakeFiles/hello_wsl.dir/lib_hello_world.cpp.obj
[100%] Linking CXX static library hello_wsl.lib
[100%] Built target hello_wsl

我尝试解决这个问题的一些事情：

在应用修复程序并重新运行configure和build之前，我对CMakeCache.txt（CMakeCache.txt.before_fix）进行了备份。重新配置并成功构建项目后，CMakeCache.txt.before_fix和CMakeCache.txt文件之间没有差异。

我还备份了＆＃34; rules.ninja＆＃34;然后将它们与FC进行比较。这是FC＆＃34; project_root \ rules.ninja.before_fix＆＃34;的输出。＆＃34; project_root \构建\ rules.ninja＆＃34;：

Comparando archivos .\rules.ninja.before_fix y .\BUILD\RULES.NINJA
***** .\rules.ninja.before_fix
rule CXX_STATIC_LIBRARY_LINKER__lib_hello_world
command = cmd.exe /C "$PRE_LINK && "C:\Program Files\CMake\bin\cmake.exe" -E remove $TARGET_FILE && "" qc $TARGET_FILE $LINK_
FLAGS $in && $POST_BUILD"
description = Linking CXX static library $TARGET_FILE
***** .\BUILD\RULES.NINJA
rule CXX_STATIC_LIBRARY_LINKER__lib_hello_world
command = cmd.exe /C "$PRE_LINK && "C:\Program Files\CMake\bin\cmake.exe" -E remove $TARGET_FILE && C:\PROGRA~1\MinGWx64\bin\
ar.exe qc $TARGET_FILE $LINK_FLAGS $in && C:\PROGRA~1\MinGWx64\bin\ranlib.exe $TARGET_FILE && $POST_BUILD"
description = Linking CXX static library $TARGET_FILE
*****

并为＃34; MinGW Makefiles＆＃34;做了同样的事情。这是FC＆＃34; project_root \ link.txt.before_fix＆＃34;的输出。＆＃34; project_root \构建\ CMakeFiles \ lib_hello_world.dir \ link.txt＆＃34;：

Comparando archivos .\link.txt.before_fix y .\BUILD\CMAKEFILES\LIB_HELLO_WORLD.DIR\LINK.TXT
***** .\link.txt.before_fix
"" qc hello_wsl.lib  CMakeFiles/hello_wsl.dir/lib_hello_world.cpp.obj
***** .\BUILD\CMAKEFILES\LIB_HELLO_WORLD.DIR\LINK.TXT
C:\PROGRA~1\MinGWx64\bin\ar.exe qc lib_hello_world.lib  CMakeFiles/lib_hello_world.dir/lib_hello_world.cpp.obj
C:\PROGRA~1\MinGWx64\bin\ranlib.exe lib_hello_world.lib
*****

Answer 1

有一些关于 CMAKE_AR 和 CMAKE_RUNLIB 变量的具体内容：根据bugreport，它们应声明为 CACHED ：< / p>

SET(CMAKE_AR      "$ENV{MINGW_W64_BIN_DIR}/ar.exe" CACHE FILEPATH "Arhiver")
SET(CMAKE_RANLIB  "$ENV{MINGW_W64_BIN_DIR}/ranlib.exe" CACHE FILEPATH "Runlib")

CMake 3.8.0在makefile中生成错误的链接命令

的问题：

示例项目，逐步重现问题＆＃34; MinGW Makefiles＆＃34;：

这是我发现的粗略修复/解决方法：

我尝试解决这个问题的一些事情：

1 个答案: