In my CMake I have:
find_package(PythonInterp 3.6 REQUIRED)
This works fine when I execute cmake ., because I have python3.6 in /opt/local/bin. However, when CLion executes the same cmake, it is unable to find it. How can I make it aware?
I tried adding /opt/local/bin to PATH and adding a python interpreter setting, but nether worked for that.
I solved this issue by adding an extra parameter to cmake which is: Python3_EXECUTABLE
cmake -DPython3_EXECUTABLE=/path/to/bin/python3 ..
One thing to try is temporarily set CMAKE_PREFIX_PATH with /usr/local where python is installed in some platforms (happens in macOS).
+ set(CMAKE_PREFIX_PATH_bak ${CMAKE_PREFIX_PATH})
+ set(CMAKE_PREFIX_PATH "/usr/local")
find_package(PythonInterp)
+ set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH_bak})
I was able to figure it out. It is possible to add env variables to cmake execution: look for env in here https://cmake.org/cmake/help/latest/manual/cmake.1.html
Knowing this it was easy to add it in clion: Settings/Preferences -> Build, Execution, Deployment -> CMake -> CMake Options
and add into that field env PATH=${PATH}:/opt/local/bin.
Related
I want to install MongoDB C++ Driver, so first is mongocxx
I follow this installation:
http://mongocxx.org/mongocxx-v3/installation/
but I can not pass step 4
when I run this in mongo-cxx-driver/build
sudo cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local ..
it shows
-- Auto-configuring bsoncxx to use MNMLSTC for polyfills since C++17 is inactive
CMake Error at src/mongocxx/CMakeLists.txt:37 (find_package):
By not providing "Findlibmongoc-1.0.cmake" in CMAKE_MODULE_PATH this
project has asked CMake to find a package configuration file provided by
"libmongoc-1.0", but CMake did not find one.
Could not find a package configuration file provided by "libmongoc-1.0"
(requested version 1.13.0) with any of the following names:
[![enter image description here][1]][1]
libmongoc-1.0Config.cmake
libmongoc-1.0-config.cmake
Add the installation prefix of "libmongoc-1.0" to CMAKE_PREFIX_PATH or set
"libmongoc-1.0_DIR" to a directory containing one of the above files. If
"libmongoc-1.0" provides a separate development package or SDK, be sure it
has been installed.
second question,
Step 2: Choose a C++17 polyfill how can I set MNMLSTC/core?
does anyone can help me,I already trap here for a long time ?
my env:
mongo-c-driver 1.15.1
libmongoc-1.0
mongocxx-3.4.x
Cmake is complaining about not finding a package configuration file (xxx.cmake), probably because you didn't build libmongoc/libbson.
I've tried to reproduce your issue and hit the same problem when I only installed them (apt-get install), so my suggestion is that you get the sources and build them as described at: http://mongoc.org/libmongoc/current/installing.html
Here's the list of commands (with the latest version of mongo-c-driver=1.15.1) which I just tried and worked fine:
wget https://github.com/mongodb/mongo-c-driver/releases/download/1.15.1/mongo-c-driver-1.15.1.tar.gz
tar xzf mongo-c-driver-1.15.1.tar.gz
cd mongo-c-driver-1.15.1
mkdir cmake-build
cd cmake-build
cmake -DENABLE_AUTOMATIC_INIT_AND_CLEANUP=OFF ..
make
sudo make install
At this point you can go back into mongocxx/build and run again the command you were stuck at:
cd ../../mongo-cxx-driver/build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local ..
I'm trying to build docker image, but I have this
app/utils
app/vendor/fifo/fifobuffer_v2
parkingDetection/pkgs/utils
app/pkgs/utils
app/vendor/github.com/stratoberry/go-gpsd
parkingDetection/gpsdata
gocv.io/x/gocv app/gpsdata
pkg-config --cflags opencv
Package opencv was not found in the pkg-config search path.
Perhaps you should add the directory containing `opencv.pc'
to the PKG_CONFIG_PATH environment variable
Package 'opencv', required by 'virtual:world', not found
pkg-config:
exit status 1
apt-file search opencv.pc
gives me
libopencv-dev: /usr/lib/x86_64-linux-gnu/pkgconfig/opencv.pc
echo $PKG_CONFIG_PATH
gives me
/usr/lib/x86_64-linux-gnu/pkgconfig/opencv.pc
How can I solve this problem?
I had a similar problem when I was trying to install a deep learning framework and this is how I fixed it:
Add the following to your .bashrc file:
PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/lib/x86_64-linux-gnu/pkgconfig
export PKG_CONFIG_PATH
then run the .bashrc file by either
source ~/.bashrc
or
. ~/.bashrc
I hope it works for you.
So, I guess, I just can't build docker image, which uses ppencv without opencv on my pc
I installed CMake (on ios), and it seemed like the installation was completed.
However, when I type
cmake -version
I get
-bash: cmake: command not found
Is there a need to set up CMake before using it?
Assuming you're talking about OS X, not iOS: CMake is installed, but not in the PATH in your shell. You can add it via something like:
PATH=$PATH:/Appications/CMake.app/Contents/bin
Then the cmake command will work on the command line.
You can edit the file ~/.bashrc to set your PATH this way every time you open the command line, instead of needing to do it manually each time.
https://en.wikipedia.org/wiki/PATH_(variable)
you can open CMake with GUI in Launchpad, and click the "tools" - > "How to Install For Command Line Use" menu, you'll find ways to solve it
The previous answer pointing to /Applications/CMake.app/Contents/bin is correct but you can go one step further.
If you run
/Applications/CMake.app/Contents/bin/cmake-gui --install
Then it will link the executables into /usr/local/bin.
I'm trying to use CMake to build generate the make file for a project of mine that uses Lua. When I run make I get this error:
/path/to/my/project/luaudio/luaudio.c:1:17: fatal error: lua.h: No such file or directory
In the CMakeLists.txt file, I have the following lines, which I thought would do it, but apparently they're not enough:
find_package(Lua51 REQUIRED)
set(Luaudio_INCLUDE_DIRS ${Luaudio_SOURCE_DIR} ${Lua51_INCLUDE_DIRS} PARENT_SCOPE)
include_directories(${Luaudio_INCLUDE_DIRS})
Lua51_Include_Dirs appears to be empty (attempting to run it though the message command doesn't print anything) so I suspect that it just can't find it. Do I need to specify where to look for Lua? I was under the impression that the whole point of find_package was that it would look in a set a predefined places so that I don't need to specify where it is specifically.
(This is on an Ubuntu machine and I do have the Lua packages installed.)
install lua bin:
sudo apt-get install lua5.1
install lua lib:
sudo apt-get install lua5.1-dev
Exploring FindLua51.cmake from cmake 2.8 I found that it sets LUA_INCLUDE_DIR variable instead of Lua51_INCLUDE_DIRS. So cmake code should be
find_package(Lua51 REQUIRED)
set(Luaudio_INCLUDE_DIRS ${Luaudio_SOURCE_DIR} ${LUA_INCLUDE_DIR} PARENT_SCOPE)
include_directories(${Luaudio_INCLUDE_DIRS})
for Ubuntu 14.04
sudo apt install lua5.2;
sudo apt install liblua5.2-dev;
I am compiling a dependency for a project on Ubuntu 10.10, and instead of having it install to /usr/local by default, I am instead installing it to /tmp/stage/usr/local. How do I go about informing CMake of the location of this custom installed dependency when I call it to generate the build files for said project.
I am running CMake 2.8.1, and I have tried to set CMAKE_PREFIX_PATH on the cmake command line, like so
cmake -D CMAKE_PREFIX_PATH=/tmp/stage/usr/local
but this doesn't seem to make a difference - the project doesn't seem to detect the dependency.
Also, if it matters, the project in question is OpenCV 2.2, and the dependency in question is FFMPEG...
I figured out how to fix my problem, and trying to point CMake at the appropriate install location isn't the issue.
Apparently, CMake is unable to find the pkg-config files for FFMPEG (i.e. libavcodec.pc, libavdevice.pc, etc.) that tell it where the FFMPEG headers and libraries are located. In a typical install scenario, these files would be located at /usr/lib/pkgconfig. However because of the custom install location, they are instead located at /tmp/stage/usr/local/lib/pkgconfig.
So that CMake could find these files, I had to add the following environment variable:
export PKG_CONFIG_PATH=/tmp/stage/usr/local/lib/pkgconfig
After which point, OpenCV built against FFMPEG as expected.