Error during building of YAML_CPP with CMake on WIndows - cmake

I keep getting an error when I try to build yaml-cpp on Windows.
Using the CMake gui application I selected build- and sourcepath correctly, but as soon as I hit the "Configure" Button there is the following error thrown:
CMake Error: CMake was unable to find a build program corresponding to "**MinGW Makefiles**". **CMAKE_MAKE_PROGRAM** is not set. You probably need to select a different build tool.
CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER
CMake Error: Could not find cmake module file:C:/Users/Robert/Programs/Lib/yaml-cpp/build/CMakeFiles/CMakeCCompiler.cmake
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER
CMake Error: Could not find cmake module file:C:/Users/Robert/Programs/Lib/yaml-cpp/build/CMakeFiles/CMakeCXXCompiler.cmake
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
Configuring incomplete, errors occurred!
I know it has to do with the selected Generator, I selected CodeBlocks - MinGW Makefiles. However I have installed CodeBlocks correctly. So is there perhaps a way to set the CMAKE_MAKE_PROGRAM variable manually?

Related

how to specify ninja path in cmake when use meson

I have specify ninja path in the MakeFile,it will call meson to build.
And I import cmake in the meson.build to build grpc,
but the cmake cannot find ninja.
Program cmake found: YES (/opt/homebrew/bin/cmake)
error retrieving cmake information: returnCode=255 stdout= stderr=CMake Error: CMake was unable to find a build program corresponding to "Ninja". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
Error: --system-information failed on internal CMake!
Any help will be appriated!

How to install and configure 'cmake' in MSYS2?

How to install and configure 'cmake' in MSYS2?
I have tried installing the following MSYS packages
I am getting the following error on running any cmake commands
'''
CMake Deprecation Warning at CMakeLists.txt:5 (cmake_minimum_required):
Compatibility with CMake < 2.8.12 will be removed from a future version of
CMake.
Update the VERSION argument value or use a ... suffix to tell
CMake that the project does not need compatibility with older versions.
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:8 (project):
The CMAKE_C_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:8 (project):
The CMAKE_CXX_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
Tell CMake where to find the compiler by setting either the environment
variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
to the compiler, or to the compiler name if it is in the PATH.
-- Configuring incomplete, errors occurred!
'''
Please help resolve this error.
CMake on Windows tries to use the MSVC compiler by default (cl). To make it use GCC, add following flags: -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++.
You can search for packages on https://packages.msys2.org and find cmake package :
pacman -S cmake

How to set the environment variables in CMAKE?

I am trying to use Cmake to manage the dependencies of the Fortran and C code when I compiled the spectral solver. But it seems that Cmake cannot find the compiler although I have downloaded the Fortran and GCC already. This is the error I am getting. I hope there is someone who can tell me how to solve it.
the error screenshot
`CMake Error at /usr/share/cmake-3.16/Modules/CMakeDetermineCompiler.cmake:58 (set_property):
set_property could not find CACHE variable CMAKE_Fortran_COMPILER. Perhaps
it has not yet been created.
Call Stack (most recent call first):
/usr/share/cmake-3.16/Modules/CMakeDetermineFortranCompiler.cmake:96 (_cmake_find_compiler)
CMakeLists.txt:109 (project)
-- The Fortran compiler identification is unknown
CMake Error at /usr/share/cmake-3.16/Modules/CMakeDetermineCompiler.cmake:58 (set_property):
set_property could not find CACHE variable CMAKE_C_COMPILER. Perhaps it
has not yet been created.
Call Stack (most recent call first):
/usr/share/cmake-3.16/Modules/CMakeDetermineCCompiler.cmake:65 (_cmake_find_compiler)
CMakeLists.txt:109 (project)
-- The C compiler identification is unknown
CMake Error at CMakeLists.txt:109 (project):
No CMAKE_Fortran_COMPILER could be found.
Tell CMake where to find the compiler by setting either the environment
variable "FC" or the CMake cache entry CMAKE_Fortran_COMPILER to the full
path to the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:109 (project):
No CMAKE_C_COMPILER could be found.
Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.`
CMakeLists.txt
You need set the env variables. I used the following steps:
1: vim ~/.bashrc (to set the env variables)
2: Add the following statements
export CC=/usr/bin/gcc (the path basically) and export FC=/usr/bin/gfortran
3 - Also make sure your path to PETSC_DIR and PETSC_ARCH is defined, add the following statements too, export PETSC_DIR = /path/to/petsc and export PETSC_ARCH = gfortran
4 - save and close the file
5 - Run this on command line - to read and execute the bash script source ~/.bashrc

Set CMAKE_MAKE_PROGRAM to mingw32-make from inside the CMakeLists.txt

Following this post, if I run cmake .. inside my build folder with no options I get the error:
CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
CMake Error: CMAKE_Fortran_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
which I can solve by running
cmake .. -D CMAKE_MAKE_PROGRAM:PATH=/mingw64/bin/mingw32-make
However, I want to set the CMAKE_MAKE_PROGRAM from inside the CMakeLists.txt file. I tried the
if(MSYS)
set(CMAKE_MAKE_PROGRAM /mingw64/bin/mingw32-make)
endif(MSYS)
but it doesn't work. I would appreciate it if you could help me know how I can resolve this problem.
P.S.1. Here is the code.
P.S.2. I tried the
set(CMAKE_MAKE_PROGRAM /mingw64/bin/mingw32-makemingw32-make CACHE FILEPATH "" FORCE)
as suggested in the comments but it did not help.
P.S.3. My operating system is Windows 10 version 1909, and I'm running the above commands in MSYS2 terminal MSYS_NT-10.0-18363
Ok, I think I solved the problem. From here, I needed to install the MSYS2's make:
pacman -S make
This seems like a trend too me. I have recently had several problems in MSYS2 which have been resolved by removing the MinGW package and replacing it with the MSYS2 package. So it tells me that when working inside MSYS2 I should favor MSYS2 packages if they are available.

cmake: Selecting a generator within CMakeLists.txt

I would like to force CMake to use the "Unix Makefiles" generator from within CMakeLists.txt.
This is the command I use now.
cmake -G "Unix Makefiles" .
I would like it to be this.
cmake .
When running on windows with VC installed and a custom tool-chain.
I would expect to be-able to set the generator in the CMakeLists.txt file.
Maybe something like this.
set(CMAKE_GENERATOR "Unix Makefiles")
Here is what worked for me - create a file called PreLoad.cmake in your project dir containing this:
set (CMAKE_GENERATOR "Unix Makefiles" CACHE INTERNAL "" FORCE)
It seems to me that the variable CMAKE_GENERATOR is set too late if set in the CMakeLists.txt. If you use (even at the beginning of CMakeLists.txt)
set(CMAKE_GENERATOR "Ninja")
message("generator is set to ${CMAKE_GENERATOR}")
you can see in the output something like
% cmake ../source
-- The C compiler identification is GNU 4.9.2
...
-- Detecting CXX compile features - done
generator is set to Ninja
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/build
So the variable is only set at the very end of the generation procedure. If you use something like
set(CMAKE_GENERATOR "Ninja" CACHE INTERNAL "" FORCE)
in CMakeLists.txt, then in the very first run of cmake ../source (without -G) the default generator is used. The variable CMAKE_GENERATOR is stored in the cache, though. So if you rerun cmake ../source afterwards, it will use the generator as specified in the CMAKE_GENERATOR variable in the cache.
This is surely not the most elegant solution, though ;-) Maybe use a batch file that will actually execute the cmake -G generator for the user...
This is not what I get, when I run the same command, cmake will look for a gcc compiler / make utility. If the PATH is not set up correctly it will fail with something like:
D:\Development\build>cmake -G "Unix Makefiles" ..\source
CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set.
You probably need to select a different build tool.
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER
CMake Error: Could not find cmake module file:D:/Development/build/CMakeFiles/CMakeCCompiler.cmake
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER
CMake Error: Could not find cmake module file:D:/Development/build/CMakeFiles/CMakeCXXCompiler.cmake
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
when gcc / mingw is in the path then everything works fine. So could you provide more information as to your PATH variable or CMAKE version?
You need to set the generator at the Generate stage so it is written into the cache.
You only need to run this command once for the first configuration
cmake .. -DCMAKE_GENERATOR:INTERNAL=Ninja
This will configure Ninja as the default generator.
Later you can simply run
cmake ..
And it would use the Ninja generator as default
You can read more about it under Running CMake from the command line
When running cmake from the command line, it is possible to specify command line options to cmake that will set values in the cache. This is done with a -DVARIABLE:TYPE=VALUE syntax on the command line. This is useful for non-interactive nightly test builds.
CMake 3.19 introduces a new feature - presets. So, to select proper generator automatically, you can specify it name in CMakePresets.json.
Full description for these files available here: https://cmake.org/cmake/help/latest/manual/cmake-presets.7.html