CMake fails to generate for Visual Studio 14 2015 with C++11

[Simon Cotts]

Hello,

I'm new to using CppUTest (3.8) and CMake (3.6.1), running on Windows 7 64-bit.

I'm trying to generate a solution for Visual Studio 14 2015 in order to build the CppUTest libraries. (Which is correct to the best of my knowledge...)

I need C++11 support, but CMake cannot find 'CXX11', selecting the default compilers.

Source code is in: C:/cpputest-3.8, Binary files are being built in: C:/cpputest-3.8/bin

CMake Configure Output:

The C compiler identification is MSVC 19.0.24213.1

The CXX compiler identification is MSVC 19.0.24213.1

Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe

Check for working C compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe -- works

Detecting C compiler ABI info

Detecting C compiler ABI info - failed

Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe

Check for working CXX compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe -- works

Detecting CXX compiler ABI info

Detecting CXX compiler ABI info - failed

Detecting CXX compile features

Detecting CXX compile features - failed

Looking for fork

Looking for fork - not found

Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)

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

CppUTest Version 3.8

Current compiler options:

CC: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe

CXX: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/cl.exe

CppUTest CFLAGS: /FI "C:/cpputest-3.8/include/CppUTest/MemoryLeakDetectorMallocMacros.h" /WX

CppUTest CXXFLAGS: /FI "C:/cpputest-3.8/include/CppUTest/MemoryLeakDetectorMallocMacros.h" /WX /wd4290

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

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

Configuring done

 

CMake Generate Output:

Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)

Try C++11 flag = [ ]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

Try C++11 flag = [-std=c++11]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

Try C++11 flag = [/Qstd=c++0x]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

CMake Error at C:/Program Files/CMake/share/cmake-3.6/Modules/FindPackageHandleStandardArgs.cmake:148 (message):

Could NOT find CXX11 (missing: CXX11_FLAGS)

Call Stack (most recent call first):

C:/Program Files/CMake/share/cmake-3.6/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)

cmake/Modules/FindCXX11.cmake:48 (find_package_handle_standard_args)

cmake/Modules/CppUTestConfigurationOptions.cmake:56 (find_package)

CMakeLists.txt:51 (include)

Configuring incomplete, errors occurred!

See also "C:/cpputest-3.8/bin/CMakeFiles/CMakeOutput.log".

See also "C:/cpputest-3.8/bin/CMakeFiles/CMakeError.log".

Also, please find CMakeOutput.log and CMakeError.log attached. 

[Martin Ertsås]

This test seems in need of updating, as the flags have changed a bit. In cmake/Modules there is a FindCXX11.cmake file. Can you try to add:

/Qstd=c++11

to the CXX11_FLAG_CANDIDATES and tell me if that works?

- Martin

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[Simon Cotts]

Unfortunately I get the same result:

FindCXX11.cmake:

set(CXX11_FLAG_CANDIDATES

    # Eveerything that automatically accepts C++11

    " "

    # gcc, clang and Intel Linux

    "-std=c++11"

    # Intel windows

    "/Qstd=c++0x"

    "/Qstd=c++11"

    )

CMake Generate:

Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)

Try C++11 flag = [ ]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

Try C++11 flag = [-std=c++11]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

Try C++11 flag = [/Qstd=c++0x]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

Try C++11 flag = [/Qstd=c++11]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Failed

CMake Error at C:/Program Files/CMake/share/cmake-3.6/Modules/FindPackageHandleStandardArgs.cmake:148 (message):

Could NOT find CXX11 (missing: CXX11_FLAGS)

Call Stack (most recent call first):

C:/Program Files/CMake/share/cmake-3.6/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)

cmake/Modules/FindCXX11.cmake:50 (find_package_handle_standard_args)

[Martin Ertsås]

Weird. I'll have a closer look on what we're actually trying to run in that test

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[Martin Ertsås]

Seems like Visual Studio has a bug with the __cplusplus macro: https://connect.microsoft.com/VisualStudio/feedback/details/763051/a-value-of-predefined-macro-cplusplus-is-still-199711l

Since I don't have a Windows box, I need some help to find a solution.

Could you try to change the lines:

#if __cplusplus < 201103L

#error \"Can not compile with C++11\"

#endif

to

#if defined(_MSC_VER) && _MSC_VER < 1800

#error \"Can not compile with C++11 support\"

#elif __cplusplus < 201103L

#endif

#error \"Can not compile with C++11 support\"

#endif

Something like that should work.

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[Simon Cotts]

Assuming this is correct:

FindCXX11.cmake:

set(CXX11_TEST_SOURCE

"

#if defined(_MSC_VER) && _MSC_VER < 1800

#error \"Can not compile with C++11 support\"

#elif __cplusplus < 201103L

#endif

#error \"Can not compile with C++11 support\"

#endif

int main()

{}

")

I get no change to the previous CMake output.

[Martin Ertsås]

Just saw that it is not correct. try:

#if defined(_MSC_VER)

#if _MSC_VER < 1800

#error \"Can not compile with C++11 support\"

#endif

#elif __cplusplus < 201103L

#error ...

#endif

[Simon Cotts]

Many thanks Martin; It now generates OK!

CMake Generate:

Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)

Try C++11 flag = [ ]

Performing Test CXX11_FLAG_DETECTED

Performing Test CXX11_FLAG_DETECTED - Success

[Martin Ertsås]

can you change make a pull request with that change?

[Simon Cotts]

Sorry no; I'm unsure how to go about doing that!

[Martin Ertsås]

Ok. Then I'll do it a bit later.

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[Martin Ertsås]

FYI: This have been merged now.