Can someone explain me please how to install properly Cmake and GoogleTest so the command
gtest_discover_tests
becomes available ?. I installed
cmake-3.23.0-rc3
and
googletest-release-1.11.0
from source but I still can't compile that project
https://github.com/D-os/libbinder
because of fallowing error
CMake Error at tests/CMakeLists.txt:15 (gtest_discover_tests):
Unknown CMake command "gtest_discover_tests".
I'm using Slackware 14.2 x64
That function is defined in the GoogleTest script file (module) so you need to include it like this: include(GoogleTest)
Then you can use the function.
Related
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
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.
I am getting the following error :
CMake Error at CMakeLists.txt:9 (BISON_TARGET):
Unknown CMake command "BISON_TARGET".
when I run the command :
cmake .. -GNinja
Please tell me what to do. I tried searching on google a lot and thus came up with the additions and finally ran the command :
cmake .. -D LLVM_DIR=/usr/lib/llvm-5.0/cmake/ -D FLEX_EXECUTABLE=/usr/local/Cellar/flex/2.5.37/bin/ -D FLEX_INCLUDE_DIR=/usr/local/Cellar/flex/2.5.37/include/ -D BISON_EXECUTABLE=/usr/bin/bison
but it still shows the same error :(.
Please someone help.
Your error is occurring because the BISON_TARGET function definition has not yet been supplied. This method, as commented, is supplied by FindBISON. The error indicates that either Bison was not found on your system (hopefully, you have it installed), or cmake was ran from the wrong directory. Bison is included in the top-level CMake file via:
find_package(BISON REQUIRED)
This line to include Bison must be called before using the BISON_TARGET CMake function. The LLReve instructions for compiling this repository are explicit about which directory to run the build commands in:
Go to the llreve directory and run
cd reve
mkdir build
cd build
cmake .. -GNinja
ninja
This would run on the CMake file in the llreve/reve directory, not the llreve/reve/reve directory. Please ensure you are running CMake from the correct location, as not running cmake on the top-level CMake file will often yield errors.
I am an llvm beginner. I compiled llvm which checked from svn, and I got the error: unknown cmake command add_llvm_loadable_module when using cmake to create a makefile in llvmroot/lib/Transform/Hello/build. I have no idea why this occur. Is there something wrong when compiling llvm? In this case, I compiled llvm by cmake -G "Unix Makefiles" in macros. Thanks for your help.
You just mixed things up.
You should cd into ~/llvm/build and run cmake ~/llvm or cmake ... And you don't need -DCMAKE_PREFIX_PATH at all in this case.
This command will just generate build files for you. Now, if you want to build only that Hello pass instead of whole LLVM, run make help | grep Hello to find out how the corresponding target is called and then make <target>.
You should used add_llvm_library in CMakeLists.txt
like this:
add_llvm_library(My_Plugin MODULE My_Plugin.cpp PLUGIN_TOOL clang)
I've tried playing with the idea to compile my mixed swift/objective-c/c++ based project using CMake. So as a starter, I went to SwiftMix example and run the following CMakeList.txt file :
cmake_minimum_required(VERSION 3.3)
project(SwiftMix C Swift)
add_executable(SwiftMix CMain.c ObjCMain.m SwiftMain.swift ObjC-Swift.h)
set_property(TARGET SwiftMix PROPERTY XCODE_ATTRIBUTE_SWIFT_OBJC_BRIDGING_HEADER "ObjC-Swift.h")
After running cmake on the file above, I got the following error :
CMake Error: CMAKE_Swift_COMPILER not set, after EnableLanguage
However, it looks like inside CMake installation (version 3.9.1), there's a file/files which handle the swift support and define the missing variable from the error message :
/usr/local/Cellar/cmake/3.9.1//share/cmake/Modules/CMakeSwiftCompiler.cmake.in
Any idea how can I change the "CMakeLists.txt" to support swift ?
First, Swift language not supported by "Unix Makefiles" generator. So, you have to use cmake -G Xcode .
Then, generator the Xcode project, if it does not work, you can try the sudo xcode-select --reset or upgrade your cmake version.
Final, try cmake -G Xcode . again.