I generate an Xcode project from CMake that builds a static library and test executable.
After the library is built, there is a file copy operation that moves the headers to a central directory (an include folder next to the built library).
This directory is not listed in the header search paths for either project (I have verified this inside the Xcode project and CMakeLists files).
When I am working in the generated Xcode project, the Issue Navigator will open the files in the central directory instead of the files used to build the project.
Can anyone tell me why this happens and how I can fix it?
Thanks for your help.
Use a separate build directory. Create a new directory. Navigate to that in terminal and say :
cmake -G Xcode <path_to_source>
Related
I downloaded the xlnt library for working with Excel - https://github.com/tfussell/xlnt. Can you please tell me what to do with it further? Honestly, I still can’t understand how among all the files there are in the downloaded archive, and there are 100 of them .hpp and .cpp files, what should I do with them?
1)As far as I understand, they need to be processed by the Cmake program and it seems that the output should appear .lib file, but I absolutely can’t understand how to do it or maybe something else
2)Or how can they be directly processed by Visual Studio 2017?
PS:When I launch Smack, I select the Source folder, the Cmake generates many incomprehensible files, but among them there is not one file with the .lib extension.
Help me please.
With CMake you can obtain the visual studio 2017 project files
and then compile the xlnt library.
Unzip the archive file
Within the xlnt folder, create a new directory and call it build
Launche CMake (GUI)
Browse for the source code folder
Browse for the build folder xlnt/build
With the Configure button select the tool (IDE/compiler) that you want to use
Pressing the Generate button, CMake will generate (inside the build folder)
the visual studio 2017 project files you need to compile the xlnt library
Building the solution, VS 2017 produces the xlnt.lib, xlnt.exp and xlnt.dll files.
The source path you see in the CMake screenshot is incorrect. You must specify the path that contains the "top level" CMakeLists.txt file.
The correct directory is: C:/Users/Zver/source/repos/XLNT Library/xlnt-master.
The CMakeLists.txt file in the above directory tells CMake all necessary subdirectories.
At this point you will see the static compilation option of the library appear.
If you use the MinGW/GCC compiler you must prevent the path from containing empty spaces.
Then you need to rename the directory from "XLNT Library" to "XLNTLibrary". At this point the path would become:
C:/Users/Zver/source/repos/XLNTLibrary/xlnt-master.
I am linking to assimp as i´ve always done with other middleware, but when i run my application, i get a runtime error: "Application could not launch correctly (0xc000007b)."
What am i missing? I downloaded the assimp 3.1.1 binary and got
an include/assimp folder, containing header files and a "Compiler" folder containing more headers
"lib32" and "lib64" folders, each containing an "assimp.lib"
"bin32" and "bin64" folders, containing an "assimp.dll" and an "assimp.exe"
...along with other folders and files, like samples and cmake stuff.
I put the "include/assimp" folder into my projects include folder, the assimp.lib i put in my lib/x86 folder and the assimp.dll and .exe next to my application .exe.
In my startup-project´s properties i am linking to the include and library paths and i am including assimp.lib in my additional dependencies.
The problem was that the assimp.dll and assimp.exe had to go into my solution folder. appearently somewhere this is defined as the place to read .dll or .exe from.. even though thats strange because my glew.dll and sdl2.dll need to be inside the same directory as my application.. Probably the assimp.exe assumes the .dll is in the directory above it
I have tried to ´make´ the library yaml-cpp, not sure I did it right, but how do I build it?
In the tutorial (https://github.com/jbeder/yaml-cpp/blob/master/README.md) it says to run cmake in the build dir, but cmake could not find the cmakelist file, so I did it in the source dir, but then what? How do I build it?
If someone could make a newbie step by step to get the library (or any library really) so I can include it in my code, that would be awesome.
Im using Windows 7, and compiling using terminal (using Codeblocks MinGW gcc/g++) and sublime text 3 editor.
Edit: I have not "make". How can I get this?
Here is the step by step guide:
For the purpose of this answer I will use cmake gui instead to highlight a few key points.
go to https://github.com/jbeder/yaml-cpp and download the root library.
open cmake gui and select the source directory as <my project>/yaml-cpp-master
select a directory for the build. I would call it <my project>/yaml-cpp-master/codeblocks_build
press configure and then check all the values.
press generate and wait for it to complete.
Find the generated codeblocks project file within <my project>/yaml-cpp-master/codeblocks_build
Compile the project as you normally would.
find the generated DLL files and link them to your project.
The reason why you are getting this error is because cmake is trying to find the source code in the directory build which is newly created as seen in the tutorial:
mkdir build
cd build
This is meant to specify to cmake where to build it in rather than where to build from. If you wish to use it via a command line you will need to tell cmake where to build and where the source is.
To then call the functions from that library you will need to link the header files (files that start with .h or .hpp) and the DLL libraries.
the .cpp .c etc is where the implementation is but .h .hpp is where the definitions are.
So when you are including like this: #include<something.h> you are including definitions which are later filled by the .cpp files however in case of a library they are instead filled from .dll or .o
I am developing software where I need to use the OpenCV libraries under NetBeans. Took 2 days to be able to run correctly a C++ Application with OpenCV.
In a C++ Application I needed to add C:/OpenCV245/build/include in project properties->Build->C++ compiler-> Include Directories and Headers. Also, Under the Linker properties-> Additional Library Directories I had to add the following directories
C:/OpenCV245/release/lib
C:/OpenCV245/build/x64/mingw/lib
and add the .dll files I specifically needed in the linker->libraries
Now when I try to create a C++ Qt application, I add the proper include directories and headers but I can't add the path to my "additional libraries"...
I tried building to see what errors would pop:
cannot find -lopencv_core245.dll
cannot find -lopencv_highgui245.dll
How do we add .dll.a files to a C++ Qt application under Netbeans?
Programming environment:
NetBeans 7.4
MinGW 3.2 Compiler c++ compiler, msys make command and qt5.1.1 qmake for Qmake Command
Qt5.1.1
OpenCV2.4.5
Windows 8 64 bit
It appears as if you are trying to link with the *.DLL files instead of *.LIB files. The right way to go is to:
In the linker->libraries settings link to the *.LIB files you need instead of the *.DLL files.
Compile your program so you get an *.EXE
Put the relevant *.DLL-files in the same folder as the *.EXE
The program is now runnable if you double-click its icon in the file browser.
It the program refuses to run from Netbeans but it works from the file browser, then that is because you need to tell Netbeans what the "current working directory" is when you launch the program in debug mode. This setting should be available in some settings dialog.
+Under Project Properties-> Build -> Qt go to Expert Custom Definitions add add the path to the appropriate .dll.a files with the LIBS +=
+Under Project Properties-> Build -> C++ Compiler in Include Directories and Headers add the appropriate path for the includes. ex: C:\OpenCV\build\include
+Under Project Properties-> Build -> Linker click on Libraries then Add Library File... ( NOT ADD LIBRARY) and add the appropriate .dll.a files that were included in the first point.
I am having an issue getting the Google Test Framework to work in Eclipse CDT, running on Fedora 18.
fuse_gtest_files.py was used to create the gtest.h and gtest-all.cc files in a separate directory (gtest_lib), which was added to the project and excluded from Release/Debug builds
A new build configuration (UnitTests) was made and the .cpp with main() from my src file was excluded
A folder (test) was made to hold my unit test and .cpp with the gtest main(), also excluded from Release/Debug builds
The include path (-l) for the GCC Compiler was updated to include the workspace folder gtest_lib, for both the test and gtest_lib folders. The test folder also includes the src folder.
The library for pthread was added to the GCC Compiler.
Eclipse is now showing that it is able to locate the header gtest/gtest.h, but all the functions that should be contained in gtest-all.cc are coming up as "Could not be resolved". Mainly the InitGoogleTest and RUN_ALL_TEST(). Any suggestions?