How to build as an ia32 solution from visual studio using cmake - c++

I have a module project using cmake with the following configuration:
cmake_minimum_required(VERSION 3.13)
project(app)
set(CMAKE_CXX_STANDARD 11)
add_library(app MODULE src/library.cpp src/library.h)
Once solution generated using cmake .. -G "Visual Studio 15 2017 Win64" -DCMAKE_BUILD_TYPE=Release, I can find an app.sln solution.
I open it with Visual Studio 2019 and click on the button Local Windows Debugger. I can see also a drop-down menu containing the value x64 and an item Configuration Manager.
Why isn't there an ia32 or x86 option by default? I just can't create a new configuration since the configuration is totally non user friendly.
Anyone has an idea for compile the library for target 32 bits programs?
EDIT
I now compile using cmake .. -G "Visual Studio 16 2019" -DCMAKE_GENERATOR_PLATFORM=x86 -DCMAKE_BUILD_TYPE=Release and the project couldn't be even loaded (cuz of some missing configuration on visual studio, that's what the IDE say)

It appears from the VS 2019 version of the cmake documentation that you should only need to specify:
cmake -G "Visual Studio 16 2019" -A Win32
and I would keep things as simple as possible and let cmake do its job.
Not sure what you mean by "nothing happens" in your last comment. Surely something happened however what happened is not what you expected or wanted.

Related

Compiler out of heap space and MSBuild 32 bit

I'm trying to compile the library OpenGV and I get the error MSVC C1060 "compiler out of heap space".
I tried to go change to x64 architecture by adding
<PreferredToolArchitecture>x64</PreferredToolArchitecture>
<PlatformTarget>x64</PlatformTarget>
to the .vxcproj file, without success. I notice however that in the resource manager, MSBuild 32 bit is still being used. Could this be the problem, and if so, how can I change the build tool (i.e. the MSbuild version), through, say, GitBash?
If you're compiling the project through the Visual Studio IDE, the Visual Studio IDE silently uses a 32-bit compiler. To change this behavior, use the command:
msbuild {solution-name}.sln /property:Configuration=Release"
To find the path to the msbuild command on your system, use the command below:
where msbuild
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe
If the where msbuild command does not return a path like C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe, but your system has msbuild installed, go to the system variables and add the MSBuild.exe path to the system path in the file structure where Microsoft Visual Studio is installed. Remove other msbuild path variable from system variables (like C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe). Otherwise, this change may not work.
In another graphics library (solution, issue) it is reported how to solve a similar problem and its solution is reported as solved as above.
When installing OpenGV under Window it is stated in the documentation that the msbuild configuration should be changed as follows:
msbuild opengv.sln /p:Configuration=Release
In addition, if the cmake build tool will be used in the project, the following declaration should be made using the -G option to compile for x64 target machine:
cmake -G "Visual Studio 16 2019" -A x64 ../
# cmake -G "Visual Studio 16 2019" -A Win32 ../
# cmake -G "Visual Studio 16 2019" -A ARM ../
# cmake -G "Visual Studio 16 2019" -A ARM64 ../

CMake does not find VS 2017 C++ compiler after installation of VS 2019

I have Visual Studio 2017 Professional installed as well as Visual Studio 2019 Professional.
Because of some project restrictions I cannot control, I have to use the VS 2017 Compiler to compile the code. Before the installation of Visual Studio 2019 the following CMake command was just working fine:
cmake -G "Visual Studio 15 2017 Win64"
But after installation of VS 2019, above line gives the following error:
CMake Error at CMakeLists.txt:9 (project):
Failed to run MSBuild command:
MSBuild.exe
to get the value of VCTargetsPath:
Das System kann die angegebene Datei nicht finden
The last line means something like "The systen cannot find the given file".
Can anyone help me solve the problem? Sadly, as of now, I have to use the compiler from VS2017 for this particular project.
Edit: As suggested by Neil in the comments, using the Developer Command Prompt works just fine. Is there any way to use the Windows command prompt? It's just easier to use.
Edit2: I now use the solution suggested by Neil and run the commands needed in Visual Studio Command Prompt, as I could not figure out how to do it correctly in Windows command prompt.
CMake always tries to find the most recent version of Visual Studio. Therefore older releases of CMake before 3.14 may fail if VS2019 is installed and not properly detected.
Please note that you need to delete CMakeCache.txt and CMakeFiles folder from your build directory if rerunning.
If you intend to use VS2019 with CMake you need to use the architecture option (-A) of CMake as there is no "Visual Studio 16 2019 Win64" generator, e.g. cmake -G "Visual Studio 16 2019" -A x64 for a 64-bit build or cmake -G "Visual Studio 16 2019" -A Win32 for a 32-bit build. The architecture option was introduced in CMake 3.0.2, so you can use that instead of the specific generator name for older Visual Studio installations too.

Linking errors when trying to build GLFW

I'm using CMAKE to build GLFW, but its spewing out the following error: No CMAKE_C_COMPILER could be found.. This is the entire output log, though i think the important bit is:
LINK : fatal error LNK1104: cannot open file 'ucrtd.lib'
I've done some searching and it seems like my Visual Studio installation is fried, when i try to repair it i get a ton of errors about packages that cannot be found. I've tried to reinstall some C++ redist and the Windows 7 SDK, though that didnt fix it.
Update:
You need to specify the generator when running cmake, if you use VS2013:
cmake . -G "Visual Studio 12 2013 Win64"
For Visual Studio 2015 it should be
cmake . -G "Visual Studio 14 2015 Win64"
Here is the complete list of generators. Maybe you have to leave out the "Win64" part.
Original post:
According to
https://connect.microsoft.com/VisualStudio/feedback/details/1160492/linker-errors-after-upgrading-from-ctp5-to-ctp6
you could try to add $UniversalCRT_LibraryPath to Configuration Properties -> VC++Directories -> Library Directories. Does this solve your problem?
One thing you could also try is to uninstall and then reinstall MSVC.

CMake does not find Visual C++ compiler

After installing Visual Studio 2015 and running CMake on a previous project, CMake errors stating that it could not find the C compiler.
The C compiler identification is unknown
The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:4 (PROJECT):
No CMAKE_C_COMPILER could be found.
CMake Error at CMakeLists.txt:4 (PROJECT):
No CMAKE_CXX_COMPILER could be found.
I went searching for cl.exe in the Visual Studio folder,C:\Program Files\Microsoft Visual Studio 14.0, and could not find it.
How do I set up CMake to work on Windows with Visual Studio 2015?
I have found the solution. While the Visual Studio IDE installed successfully it did not install any build tools and therefore did not install the C++ compiler.
By attempting to manually create a C++ project in the Visual Studio 2015 GUI I was able to prompt it to download the C++ packages. CMake was then able to find the compiler without any difficulty.
Here is the solution that worked for me:
Open Visual Studio command prompt tool (as an administrator). On windows 10 it might be called 'Developer command prompt'.
Navigate to where you have the CMake executable
Run Cmake.exe
Proceed as usual to select build and source folder
Select the appropriate Visual Studio compiler and hit the configure button
Hopefully it should run without problems.
I looked in CMakeError.log file and found an error about cannot run 'rc.exe'
I searched and found this answer to copy RC.Exe and RcDll.Dll from the Microsoft SDKs bin to the VC bin, and then CMake worked.
Edit: The top answer to another question suggests that it's a PATH issue, so it could be enough to ensure the Microsoft SDK bin is in your PATH.
Those stumbling with this on Visual Studio 2017: there is a feature related to CMake that needs to be selected and installed together with the relevant compiler toolsets. See the screenshot below.
Make sure you are using the correct version of Visual Studio in the generator. I had incorrectly selected Visual Studio 15 when Visual Studio 14 installed.
If none of the above solutions worked, then stop and do a sanity check.
I got burned using the wrong -G <config> string and it gave me this misleading error.
First, run from the VS Command Prompt not the regular command prompt. You can find it in
Start Menu -> Visual Studio 2015 -> MSBuild Command Prompt for VS2015 This sets up all the correct paths to VS tools, etc.
Now see what generators are available from cmake...
cmake -help
...<snip>...
The following generators are available on this platform:
Visual Studio 15 [arch] = Generates Visual Studio 15 project files.
Optional [arch] can be "Win64" or "ARM".
Visual Studio 14 2015 [arch] = Generates Visual Studio 2015 project files.
Optional [arch] can be "Win64" or "ARM".
Visual Studio 12 2013 [arch] = Generates Visual Studio 2013 project files.
Optional [arch] can be "Win64" or "ARM".
Visual Studio 11 2012 [arch] = Generates Visual Studio 2012 project files.
Optional [arch] can be "Win64" or "ARM".
Visual Studio 10 2010 [arch] = Generates Visual Studio 2010 project files.
Optional [arch] can be "Win64" or "IA64".
...
Then chose the appropriate string with the [arch] added.
mkdir _build
cd _build
cmake .. -G "Visual Studio 15 Win64"
Running cmake in a subdirectory makes it easier to do a 'clean' since you can just delete everything in that directory.
I upgraded to Visual Studio 15 but wasn't paying attention and was trying to generate for 2012.
For me, I checked the CMakeError.log file and found:
[...] error MSB8036: The Windows SDK version 8.1 was not found. Install the required version of Windows SDK or change the SDK version in the project property pages or by right-clicking the solution and selecting "Retarget solution".
This is despite using Visual Studio 2017 on Windows 7. So it appears that CMake is trying to build its detection project with the Windows 8.1 SDK.
I used the Visual Studio installer to add that component and now CMake is happy as a clam.
Menu → Visual Studio 2015 → MSBuild Command Prompt for Visual Studio 2015. Then CMake can find cl.exe.
set PATH="c:\Program Files (x86)\Windows Kits\10\bin\10.0.16299.0\x64\";%PATH%
Change the upper path to where your Windows SDK is installed.
CMake can find rc.exe.
cd to the path of CMakeLists.txt and do:
md .build
cd .build
cmake .. -G "Visual Studio 14 2015 Win64" -DCMAKE_BUILD_TYPE=Release
cmake --build .
The param after -G should be fetched by CMake. Use --help; you may or may not have the generator.
I ran into the same issue and fixed it by relaunching the Visual Studio Install and checking the following option:
Windows and Web Development / Universal Windows App Development Tools / Windows 10 SDK
It contains the standard C++ headers used in most applications and therefore it is often necessary to install it as well.
I had this issue under Windows 10 when using Visual Studio 2015 Professional, while Visual Studio 2015 Express worked! Under Windows 7, both Visual Studio versions used to work.
New projects created from the Visual Studio 2015 Professional IDE successfully compile, but CMake would fail to find the compiler reporting:
The C compiler identification is unknown
The CXX compiler identification is unknown
I upgraded CMake from 3.4.1 to 3.11.4, and now the problem is gone.
If you are on Visual Studio 2017 you need at least CMake 3.8!
I had a similar problem with the Visual Studio 2017 project generated through CMake. Some of the packages were missing while installing Visual Studio in Desktop development with C++. See snapshot:
Visual Studio 2017 Packages:
Also, upgrade CMake to the latest version.
Checking CMakeErrors.log in CMakeFiles returned:
C:\Program Files
(x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Platforms\x64\PlatformToolsets\v140_xp\Toolset.targets(36,5): warning MSB8003: Could not find WindowsSdkDir_71A variable from the
registry. TargetFrameworkVersion or PlatformToolset may be set to an
invalid version number.
The error means that the build tools for XP (v140_xp) are not installed. To fix it I installed the proper feature in Visual Studio 2019 installer under Individual Components tab:
I was running old cmake version (i.e. 3.8) and I'm using visual studio 16 - 2019. After updating my cmake version, it did detect the compiler.
In my case there was an environment variable set which was the reason for this error.
The problem was solved after deleting cxx_flags from the environment variables.
I got this problem with CMake 3.12.1, after an update of Visual Studio 2017. I simply re-ran CMake and it worked.
In my case I could see in the CMakeError.log that CMake could not find the Windows SDK (MSB8003: Could not find WindowsSDKDir variable from the registry).
The version can be specified on the commandline on the first CMake run using:
-DCMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION=
I got further after setting that, but I hit more issues later (so I assume my environment is messed up somehow), but maybe it will help someone with this issue.
A couple of tips:
Try to set the path manually by checking 'advanced' and modifying CMAKE_LINKER and CMAKE_MAKE_PROGRAM
Delete the cache - in the CMake with GUI go to:
File → Delete Cache.
My problem was a combination of previously stated: I have set the compiler version to 15 instead of 14 and when corrected, I had to delete the cache.
I also started the Visual Studio command prompt as an administrator and from there I ran the cmake-gui.exe
Then everything worked as it was supposed to.
In my case the issue was that the parent project, which is including googletest via
add_subdirectory(gtest_dir)
was defined as
PROJECT( projname CXX )
Somehow, CMake does not recognize
PROJECT(sub_project_name CXX C)
since the C compiler is not set in the parent.
I solved the issue by using
PROJECT( projname CXX C)
in my main CMakeLists.txt file.
This might be another solution for those with the latest Windows 10 creator version:
Stack Overflow post Fatal error LNK1104: cannot open file 'gdi32.lib'
None of the previous solutions worked for me. However I noticed that although I installed Visual Studio version 15 (not to be confused with Visual Studio 2015) the directory created on my computer was for Visual Studio 14.
When I specified Visual Studio 14 when I pressed the configuration button it worked.
i found this sollution at stackoverflow and i work for me although not working other sollutions
if you have a windows 10 OS, doing the following steps will fix the problem:
1) go to C:\Program Files (x86)\Microsoft SDKs\Windows\v7.1A\Bin
2) then copy RC.exe and RcDll from this file
3) go to C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin and paste the two files you have copied into it.
thats all i hope it is helpful...
Look in the Cmakelists.txt if you find ARM you need to install C++ for ARM and as well vcvarsall.bat use for ARM bin folder.
It's these packages:
C++ Universal Windows Platform for ARM64 "Not Required"
Visual C++ Compilers and libraries for ARM "Not Required"
Visual C++ Compilers and libraries for ARM64 "Very Likely Required"
Required for finding Threads on ARM
enable_language(C)
enable_language(CXX)
Then the problems might disappear:
No CMAKE_C_COMPILER could be found.
No CMAKE_CXX_COMPILER could be found.
If above does not resolve your problem?
Optionally you can remove the options C and CXX in cmakelists.txt by setting # infront of where the enable_language(C) is. And avoid Android ARM processor compilation.
Resolved by adding the missing component
Modify->continue add as follow
I had a related problem: the Visual C++ generators were not even on the list when running cmake --help.
I ran where cmake in console and found that cygwin also provides its own cmake.exe file, which was being used. Changing the order of directories in PATH fixed the problem.
I had this issue with CMake GUI and the VS 21019 Community Edition. I think I may have installed CMake before Visual Studio - certainly after I updated CMake 3.15.2 to 3.15.3 the problem went away.
Check name folder too long or not.
This question is old, but none of the solutions here were working for me. I'm using Visual Studio 2019, and in my case, C++ compilation was working but just broke one day.
However, I noticed that there was an update ready to be installed in the Visual Studio Installer.
After installing that update, rebooting my computer, and relaunching Visual Studio, all of the C++ CMake problems disappeared. I'm not quite sure why this fixed it, and I can only speculate, but I can only assume that one of two things occurred. Either installing that update fixed a broken installation, or the update was quietly downloaded and prepared in the background, breaking things in the process.
I met the same issue in VSCode Cmake extension, i solve it by check following two options:
In the end, click [Scan for kits]
cmake --no-warn-unused-cli -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE -DCMAKE_BUILD_TYPE:STRING=Debug "-DCMAKE_C_COMPILER:FILEPATH=C:\Program Files\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin\gcc.exe" "-DCMAKE_CXX_COMPILER:FILEPATH=C:\Program Files\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin\g++.exe" -Hc:/code -Bc:/code/build -G "MinGW Makefiles"

Check if generating a Visual Studio solution or Makefile from CMake

How can I know in my CMakeLists.txt if I'm generating a Visual Studio solution or a Makefile?
I need to add external projects to the solution like this:
INCLUDE_EXTERNAL_MSPROJECT(cs-tests ${CMAKE_CURRENT_SOURCE_DIR}/cstests/cstests.csproj)
But I only want to do it when calling
cmake .. -DCMAKE_BUILD_TYPE=Debug -G "Visual Studio 12 2013"
not when I call:
cmake -G "NMake Makefiles" ..
CMake MSVC variable can be set even if the generator is other than Visual Studio (e.g. Ninja on Windows).
To check if CMake generator is Visual Studio (i.e. msbuild), the following did the trick:
if (CMAKE_GENERATOR MATCHES "Visual Studio")
# Do Visual Studio specific stuff
else()
# Other stuff
endif()
The name of the generator is stored in CMAKE_GENERATOR. It should contain the exact string given by the -G option.
The MSVC variable should also be set to TRUE, as should MSVC12 and MSVC_IDE (though I can't confirm that from the documentation at the moment.)