I have tried without success to use the find_package function in CMake to make use of a pre-built "system wide" version of GTest in Windows. Here is a minimal, reproducible example of my CMakeLists.txt:
cmake_minimum_required(VERSION 3.2)
find_package(GTest REQUIRED)
if(NOT GTEST_LIBRARY)
message("GTest not found!")
endif()
I try to generate build files using the following command:
cmake .. -G"Visual Studio 14 2015" -DGTEST_ROOT="c:\Libs\googletest"
The c:\Libs\googletest path contains my pre-built GTest (with header files and binaries). I have studied the FindGTest.cmake file in my CMake installation (I use CMake version 3.13.3) and tried all kinds of folder structure, but I always get the following error message:
CMake Error at C:/Program Files/CMake/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find GTest (missing: GTEST_LIBRARY GTEST_INCLUDE_DIR
GTEST_MAIN_LIBRARY)
Call Stack (most recent call first):
C:/Program Files/CMake/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
C:/Program Files/CMake/share/cmake-3.13/Modules/FindGTest.cmake:196 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:2 (find_package)
Has anyone succeeded in using find_package for GTest in Windows? If so, how did you do it?
First you must build AND install Googletest using CMake build system
Then try to locate the GTestConfig.cmake file in the installation directory
So now you can add this path to the CMAKE_PREFIX_PATH variable.
Thus configuring your project using CMake, it should be able to find_package(GTest) using the usual search procedure.
So you just have to use GTest::GTest to consume it (i.e. target_link_libraries(.... GTest::GTest) ).
note: For people using FetchContent/add_subdirectory(googletest) beware google/googletest still not provide ALIAS target see https://github.com/google/googletest/issues/2429
Related
I want to compile a source code on windows using CMake, it uses wxWigets library.
I downloaded the wxWigets from the page: https://www.wxwidgets.org/
After building by Visual Studio, I got the library /lib file.
I have already set PATH for wxWidgets_LIBRARIES and wxWidgets_INCLUDE_DIRS. But the following errors cannot be resolved.
CMake Error at C:/Program Files/CMake/share/cmake-3.11/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find wxWidgets (missing: wxWidgets_LIBRARIES
wxWidgets_INCLUDE_DIRS)
Call Stack (most recent call first):
C:/Program Files/CMake/share/cmake-3.11/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
C:/Program Files/CMake/share/cmake-3.11/Modules/FindwxWidgets.cmake:953 (find_package_handle_standard_args)
CMakeLists.txt:52 (find_package)
I also read the thread about this problem in: CMake could not find wxWidgets on Windows
But there is no solution for my case.
You may specify wxWidgets_ROOT_DIR variable to point to your wxWidgets installation.
As far as I understand, you may set either CMake variable via -D option to cmake:
cmake -DwxWidgets_ROOT_DIR:PATH=D:/path/to/wxWidgets/ ...
or you may set environment variable
set wxWidgets_ROOT_DIR=D:\path\to\wxWidgets\ ...
(Note that CMake path variables use "universal" directory separator '/', but environment variables use native directory separator, '\' for Windows).
This variable is described in documentation for FindwxWidget.
Using wxWidgets_LIB_DIR variable could be tricky, see that question.
I have a solution witch can solve this problem.
there is something wrong with the FindwxWidgets.cmake File
Firstly, delete the file
C:/Program Files/CMake/share/cmake-3.11/Modules/FindwxWidgets.cmake
instead, you can find the package by using wxWidetsConfig.cmake file
YOUR_PATH\wxWidgets\lib\cmake\wxWidgets\wxWidgetsConfig.cmake.
add the flowing codes in your CMakeLists.txt and you can use wxWidgets
# set(CMAKE_PREFIX_PATH C:/dev/wxWidgets) also works
set(CMAKE_PREFIX_PATH C:/dev/wxWidgets/lib/cmake/wxWidgets)
find_package(wxWidgets COMPONENTS core base REQUIRED)
add_executable(wxwdemo WIN32 main.cpp)
target_link_libraries(wxwdemo ${wxWidgets_LIBRARIES})
target_include_directories(wxwdemo PUBLIC ${wxWidgets_INCLUDE_DIRS})
then it works
I am trying to compile libgit2 and followed the instruction on https://libgit2.github.com/docs/guides/build-and-link/ but lock so far.
Can someone tell me what to do?
Here is the result from my command line:
-- Building for: Visual Studio 12 2013
-- Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
-- Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR)
-- zlib was not found; using bundled 3rd-party sources.
-- LIBSSH2 not found. Set CMAKE_PREFIX_PATH if it is installed outside of the default search path.
CMake Error at d:/cmake/share/cmake-3.3/Modules/FindPackageHandleStandardArgs.cmake:148 (message):
Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE)
Call Stack (most recent call first):
d:/cmake/share/cmake-3.3/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)
d:/cmake/share/cmake-3.3/Modules/FindPythonInterp.cmake:162 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:594 (FIND_PACKAGE)
-- Configuring incomplete, errors occurred!
See also "D:/temp/gitlib/libgit2-master/build/CMakeFiles/CMakeOutput.log".
See also "D:/temp/gitlib/libgit2-master/build/CMakeFiles/CMakeError.log".
Thanks,
libgit2 uses python (works both with versions 2 and 3 of the language) to build the tests. You can install python or ask CMake not to build the tests.
IIRC CMake will look in a few standard locations you don't necessarily need python in your path, though it doesn't hurt.
If you would rather not build the tests, you can pass -DBUILD_CLAR=OFF so it doesn't bother looking for python.
Download Python from Paython.org and install it (i.e. d:\python). Then Open your VS command line and type PATH D:\Python\Python35-32;d:\cmake\bin;%PATH%
That's all set now, go to your build folder run cmake .. and then cmake --build .
I'm trying to build cling on Windows7 following the instructions here:
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=[Install Path] ..\src
cmake --build . --config [Release/Debug] --target cling
I notice that the compiler cmake is using being Visual Studio 12 2013 (either with cmake-gui or in cmdline), while I get the following error (full traceback is here):
Constructing LLVMBuild project information
CMake Error: File /cygdrive/e/ABOUT-C++/cling/src/LLVMBuild.txt does not exist.
CMake Error at E:/ABOUT-C++/cling/build/LLVMBuild.cmake:28 (configure_file):
configure_file Problem configuring file
Call Stack (most recent call first):
CMakeLists.txt:431 (include)
CMake Error: File /cygdrive/e/ABOUT-C++/cling/src/bindings/LLVMBuild.txt does not exist.
CMake Error at E:/ABOUT-C++/cling/build/LLVMBuild.cmake:30 (configure_file):
configure_file Problem configuring file
Call Stack (most recent call first):
CMakeLists.txt:431 (include)
Why is the path prefixed with /cygdrive/e/... but not E:/...? Are those valid paths? (The missing files cmake mention DO exist in the corresponding folder!)
Or is that because llvm / clang / cling should be built with cygwin on windows, while the compiler vc12 I'm using by default is incorrect?
My bet is that your problem lies in your python. Judging on D:/cygwin/bin/python2.7.exe it seems that you use special version of python that prepends /cygdrive/ all over the place.
Try using official binary package for Windows.
I've tried to link wxWidgets 3.0.2 to my C++ project but CMake can't seem to find it.
The wxWidgets that I'm trying to get CMake to find is from wxMSW-Setup-3.0.2.exe
This is the error it gives me:
-- Building for: Visual Studio 12 2013
CMake Error at D:/Program Files (x86)/CMake/share/cmake-3.3/Modules/FindPackageHandleStandardArgs.cmake:148 (message):
Could NOT find wxWidgets (missing: wxWidgets_FOUND)
Call Stack (most recent call first):
D:/Program Files (x86)/CMake/share/cmake-3.3/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)
D:/Program Files (x86)/CMake/share/cmake-3.3/Modules/FindwxWidgets.cmake:871 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:66 (find_package)
-- Configuring incomplete, errors occurred!
CMakeLists.txt:66 refers to this line:
find_package(wxWidgets REQUIRED core base)
I've tried changing the CMake generator, and running set(wxWidgets_ROOT_DIR "C:/wxWidgets-3.0.2"), both of which didn't fix the problem.
CMake is version 3.3.1.
I think cmake used environement variable to find wxwidgets. You have to set wxDir or wxWin variable to C:/wxWidgets-3.0.2
Use find_package(wxWidgets REQUIRED gl core base OPTIONAL_COMPONENTS net) instead of find_package(wxWidgets REQUIRED COMPONENTS core base). And when you build the wxWidgets https://wiki.wxwidgets.org/Compiling_wxWidgets_with_MinGW, use build the static libraries instead of dynamic libraries, I fixed it by using these two steps.
I'm trying compile tibia server with CMake 3.1.3 but I'm getting the following error:
CMake Error at C:/Program Files (x86)/CMake/share/cmake-3.1/Modules/FindBoost.cmake:1182 (message):
Unable to find the requested Boost libraries.
Boost version: 1.57.0
Boost include path: C:/Users/maria de lourdes/Downloads/boost_1_57_0
Could not find the following Boost libraries:
boost_thread
Some (but not all) of the required Boost libraries were found. You may
need to install these additional Boost libraries. Alternatively, set
BOOST_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT
to the location of Boost.
Call Stack (most recent call first):
CMakeLists.txt:6 (find_package)
CMake Error at CMakeLists.txt:7 (find_package):
By not providing "FindGMP.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "GMP", but
CMake did not find one.
Could not find a package configuration file provided by "GMP" with any of
the following names:
GMPConfig.cmake
gmp-config.cmake
Add the installation prefix of "GMP" to CMAKE_PREFIX_PATH or set "GMP_DIR"
to a directory containing one of the above files. If "GMP" provides a
separate development package or SDK, be sure it has been installed.
CMake Warning (dev) in CMakeLists.txt:
No cmake_minimum_required command is present. A line of code such as
cmake_minimum_required(VERSION 3.1)
should be added at the top of the file. The version specified may be lower
if you wish to support older CMake versions for this project. For more
information run "cmake --help-policy CMP0000".
This warning is for project developers. Use -Wno-dev to suppress it.
Configuring incomplete, errors occurred!
See also "C:/Tibia/src/build/CMakeFiles/CMakeOutput.log".