使用mingw-w64编译cpputest

Question

我正在尝试用mingw-w64编译cpputest，但是不能让它工作，我也找不到任何关于如何做到这一点的资源。因此，希望这个问题能在未来对其他人有所帮助。

我想使用mingw-w64编译cpputest，最好不要安装MSYS2或其他包。

我安装了mingw-w64i686-8.1.0-posix-dwarf-rt_v6-rev0。我已经从here克隆了cpputest。

我尝试使用以下命令调用CMake来跟踪Compiling Google test with Mingw-w64和Compiling and using CppUTest 3.8 under MSYS2/MinGW32：

cmake ^
    -G "MinGW Makefiles" ^
    -D CMAKE_C_COMPILER=gcc.exe ^
    -D CMAKE_CXX_COMPILER=g++.exe ^
    -D CMAKE_MAKE_PROGRAM=mingw32-make.exe ^
    -D C++11=ON ^
    .

这会产生：

-------------------------------------------------------
CppUTest Version 3.8

Current compiler options:
    CC:                                 C:/mingw-w64/i686-8.1.0-posix-dwarf-rt_v6-rev0/mingw32/bin/gcc.exe
    CXX:                                C:/mingw-w64/i686-8.1.0-posix-dwarf-rt_v6-rev0/mingw32/bin/g++.exe
    CppUTest CFLAGS:                     -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorMallocMacros.h"  -Wall -Wextra -pedantic -Wshadow -Wswitch-default -Wswitch-enum -Wconversion -Wsign-conversion -Wno-padded -Wno-long-long -Wstrict-prototypes
    CppUTest CXXFLAGS:                   -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorNewMacros.h" -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorMallocMacros.h"    -Wall -Wextra -pedantic -Wshadow -Wswitch-default -Wswitch-enum -Wconversion -Wsign-conversion -Wno-padded -Wno-long-long -Woverloaded-virtual -Wno-old-style-cast -Wno-c++14-compat
    CppUTest LDFLAGS:

Features configured in CppUTest:
    Memory Leak Detection:              ON
    Compiling Extensions:               ON
    Support Long Long:                  OFF
    Use CppUTest flags:                 ON

    Using Standard C library:           ON
    Using Standard C++ library:         ON
    Using C++11 library:                ON

    Generating map file:                OFF
    Compiling with coverage:            OFF

    Compile and run self-tests          ON
    Run self-tests separately           OFF

-------------------------------------------------------

运行make失败，并显示以下错误：

>mingw32-make.exe
Scanning dependencies of target CppUTest
[  1%] Building CXX object src/CppUTest/CMakeFiles/CppUTest.dir/CommandLineArguments.cpp.obj
In file included from C:/git/tdd/cpputest/include/CppUTest/Utest.h:34,
                 from C:/git/tdd/cpputest/include/CppUTest/TestHarness.h:39,
                 from C:\git\tdd\cpputest\src\CppUTest\CommandLineArguments.cpp:29:
C:/git/tdd/cpputest/include/CppUTest/SimpleString.h:183:31: error: 'nullptr_t' does not name a type
 SimpleString StringFrom(const nullptr_t value);
                               ^~~~~~~~~
C:/git/tdd/cpputest/include/CppUTest/SimpleString.h:183:31: note: 'nullptr_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
C:/git/tdd/cpputest/include/CppUTest/SimpleString.h:42:1:
+#include <cstddef>

C:/git/tdd/cpputest/include/CppUTest/SimpleString.h:183:31:
 SimpleString StringFrom(const nullptr_t value);
                               ^~~~~~~~~
mingw32-make.exe[2]: *** [src\CppUTest\CMakeFiles\CppUTest.dir\build.make:63: src/CppUTest/CMakeFiles/CppUTest.dir/CommandLineArguments.cpp.obj] Error 1
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:886: src/CppUTest/CMakeFiles/CppUTest.dir/all] Error 2
mingw32-make.exe: *** [Makefile:140: all] Error 2

我尝试了一个显而易见的解决方案，将cstddef添加到SimpleString.h中：

--- a/include/CppUTest/SimpleString.h                                                
+++ b/include/CppUTest/SimpleString.h                                                
@@ -180,6 +180,9 @@ SimpleString BracketsFormattedHexString(SimpleString hexString); 
  * Specifically nullptr_t is not officially supported                               
  */                                                                                 
 #if __cplusplus > 199711L && !defined __arm__                                       
+                                                                                    
+#include <cstddef>                                                                  
+                                                                                    
 SimpleString StringFrom(const nullptr_t value);                                     
 #endif                                                                              

但这仍然会失败，并出现相同的错误。

所以我试着跟着Build error with CMake and MSYS2 mingw-w64安装MSYS2，然后安装了mingw-w64，CMake和忍者。这给了我们：

-------------------------------------------------------
CppUTest Version 3.8

Current compiler options:
    CC:                                 C:/msys64/mingw64/bin/cc.exe
    CXX:                                C:/msys64/mingw64/bin/c++.exe
    CppUTest CFLAGS:                     -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorMallocMacros.h"  -Wall -Wextra -pedantic -Wshadow -Wswitch-default -Wswitch-enum -Wconversion -Wsign-conversion -Wno-padded -Wno-long-long -Wstrict-prototypes
    CppUTest CXXFLAGS:                   -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorNewMacros.h" -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorMallocMacros.h"  -Wall -Wextra -pedantic -Wshadow -Wswitch-default -Wswitch-enum -Wconversion -Wsign-conversion -Wno-padded -Wno-long-long -Woverloaded-virtual -Wno-old-style-cast
    CppUTest LDFLAGS:

Features configured in CppUTest:
    Memory Leak Detection:              ON
    Compiling Extensions:               ON
    Support Long Long:                  OFF
    Use CppUTest flags:                 ON

    Using Standard C library:           ON
    Using Standard C++ library:         ON
    Using C++11 library:                OFF

    Generating map file:                OFF
    Compiling with coverage:            OFF

    Compile and run self-tests          ON
    Run self-tests separately           OFF

-------------------------------------------------------

使用cmake -G Ninja . && ninja编译失败，出现以下错误：

include/CppUTest/SimpleString.h:183:31:
 SimpleString StringFrom(const nullptr_t value);
                               ^~~~~~~~~
[10/98] Building CXX object src/CppUTest/CMakeFiles/CppUTest.dir/TestMemoryAllocator.cpp.obj
FAILED: src/CppUTest/CMakeFiles/CppUTest.dir/TestMemoryAllocator.cpp.obj
C:\msys64\mingw64\bin\c++.exe  -DCPPUTEST_HAVE_STRDUP=1 -DHAVE_CONFIG_H -D_TIMESPEC_DEFINED=1 -I. -Iinclude -Isrc/CppUTest/../../include -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorNewMacros.h" -include "C:/git/tdd/cpputest/include/CppUTest/MemoryLeakDetectorMallocMacros.h"  -Wall -Wextra -pedantic -Wshadow -Wswitch-default -Wswitch-enum -Wconversion -Wsign-conversion -Wno-padded -Wno-long-long -Woverloaded-virtual -Wno-old-style-cast -O2 -g -DNDEBUG -MD -MT src/CppUTest/CMakeFiles/CppUTest.dir/TestMemoryAllocator.cpp.obj -MF src\CppUTest\CMakeFiles\CppUTest.dir\TestMemoryAllocator.cpp.obj.d -o src/CppUTest/CMakeFiles/CppUTest.dir/TestMemoryAllocator.cpp.obj -c src/CppUTest/TestMemoryAllocator.cpp
In file included from include/CppUTest/Utest.h:34,
                 from include/CppUTest/TestHarness.h:39,
                 from src/CppUTest/TestMemoryAllocator.cpp:28:
include/CppUTest/SimpleString.h:183:31: error: 'nullptr_t' does not name a type
 SimpleString StringFrom(const nullptr_t value);
                               ^~~~~~~~~
include/CppUTest/SimpleString.h:183:31: note: 'nullptr_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
include/CppUTest/SimpleString.h:42:1:
+#include <cstddef>

include/CppUTest/SimpleString.h:183:31:
 SimpleString StringFrom(const nullptr_t value);
                               ^~~~~~~~~
ninja: build stopped: subcommand failed.

谢谢！！

Answer 1

事实证明这是CppUtest中的一个bug。

@@ -562,7 +562,7 @@ SimpleString BracketsFormattedHexString(SimpleString hexString)
   * Specifically nullptr_t is not officially supported
   */
   #if __cplusplus > 199711L && !defined __arm__
 - SimpleString StringFrom(const nullptr_t value)
 + SimpleString StringFrom(const std::nullptr_t value)
   {
       (void) value;
       return "(null)";

自2019年12月5日起已修复。

https://github.com/leonardopsantos/cpputest/commit/cb8c457dda6741ede7009103db99967b5f27c969