Compiling cpputest with mingw-w64 - cmake

Question

I'm trying to compile cpputest with mingw-w64 but can't make it work and I can't find any resources on how to do that. So hopefully this question will help others in the future.
I would like to compile cpputest using mingw-w64, preferably without installing MSYS2 or other packages.
I have mingw-w64 i686-8.1.0-posix-dwarf-rt_v6-rev0 installed. I've cloned cpputest from here.
I tried following Compiling Google test with Mingw-w64 and Compiling and using CppUTest 3.8 under MSYS2/MinGW32 by calling CMake with:
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 ^
.
Which yields:
-------------------------------------------------------
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
-------------------------------------------------------
Running make fails with:
>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
I tried the obvious solution of adding cstddef to SimpleString.h:
--- 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
But that still fails with the same error.
So I tried following Build error with CMake and MSYS2 mingw-w64 by installing MSYS2 and then mingw-w64, CMake and Ninja. That gives:
-------------------------------------------------------
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
-------------------------------------------------------
Compiling with cmake -G Ninja . && ninja fails with:
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.
Thanks!!

Answer 1

Turns out this was a bug in CppUtest.
## -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)";
It's fixed since Dec. 5th, 2019.
https://github.com/leonardopsantos/cpputest/commit/cb8c457dda6741ede7009103db99967b5f27c969