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This 3rd party library writes out= a file which contains all include paths set by this library. For the maste= r cmake project I need to read this information at build time into a cmake = variable to set the include directories correctly. Is there a way to do this? I checked into External_Project_Add_Step but couldn=B4t find a solution.

[CMake] read file content to a variable at build-time ... This 3rd party library writes out a file which contains all include paths set by ...

However, if you just need your build to fail if a single file is missing you can use the cmake -E command line mode to compare the file with itself. This will make sure the build always stops if the provided file doesn't exist, it's cross-platform safe and works in every version of cmake since 3.0.

When CMake generates the buildsystem in that build tree it will read the query files and write reply files for the client to read. The file-based API uses a <build>/.cmake/api/ directory at the top of a build tree. The API is versioned to support changes to the layout of files within the API directory.

Make the building of that library depend on a custom target that removes the variable from the CMake cache with cmake -U BUILD_TIME. This means that every time you build your project, the dependencies are checked, and the CMake cache is cleared, causing CMake to be re-run for this timestamp library.

Options belong in the program that generates the ninja files. build-time ... used meta-build system that can generate Ninja files on Linux as of CMake ...

12.10.2017 · I would like to parse a file (XML, JSON or similar) in my CMakeLists and set some variables accordingly. ... Viewed 4k times 3 I would like to parse a file (XML, JSON or similar) in my ... you can read the file, and create CMake variables containing the names and URLs from the JSON file. # Read the JSON file. file ...

[CMake] read file content to a variable at build-time Rothbauer, Stefan stefan.rothbauer at siemens.com Thu Aug 1 10:07:31 EDT 2013. Previous message: [CMake] Custom launcher command for VS2010 Next message: [CMake] read file content to a variable at build-time Messages sorted by:

reading the file containing the include dirs while the makefile (or whatever) which is being used to build your main project and which contains the include dirs for your main project, is already being processed. Do you see what I mean ? You have to find a way to figure out the include directories needed for your main project at cmake time.

25.01.2017 · Is there a way to have CMake build and run a C++ program at configure time (i.e. when you run cmake .) but only if it hasn't been built already? For example suppose I have a program (written in C++) that generates the version information for my main program, and I want to use that version information in the main program's CMakeLists.txt.. I believe you may be …

On Thursday 01 August 2013, Rothbauer, Stefan wrote: > Hello, > > I set up cmake to use a external project. This 3rd party library writes out > a file which contains all include paths set by this library. For the > master cmake project I need to read this information at build time into a > cmake variable to set the include directories correctly. Is there a way to > do this?

Oct 22, 2021 · A more challenging scenario is where a tool needs to be run at build time and the tool’s outputs are files to be used as sources for CMake targets. During the configure stage (i.e. when CMake is run), these files do not yet exist, so CMake needs some way of knowing they are generated files or it will expect them to be present.

* If you want to get the content of a generated file you may use FILE(READ ...) > I could find no way to manipulate files after configuration time. * if the problem is to read those file after they have been generated at make time then you may run a cmake script (which use FILE(READ ) inside a ADD_CUSTOM_COMMAND which depends on the OUTPUT of the first one something …

Read content from a file called <filename> and store it in a <variable> . ... an output file for each build configuration supported by the current CMake ...

How to create and build C++ projects using CMake in Visual Studio. ... at debug time, you can use another file called launch.vs.json .

CMake needs to be able to infer the names of all .cpp files participating in the build at configure time. It is not possible to add files afterwards without ...

New in version 3.12: If the CONFIGURE_DEPENDS flag is specified, CMake will add logic to the main build system check target to rerun the flagged GLOB commands at build time. If any of the outputs change, CMake will regenerate the build system.

In a build, cached variables are set in the command line or in a graphical tool (such as ccmake , cmake-gui ), and then written to a file called CMakeCache.txt ...

Check out ourGetting Started Guideto Download file PDF Read file. CMake is used to control the software compilation process using simple platform and ...

Read content from a file called <filename> and store it in a <variable>.Optionally start from the given <offset> and read at most <max-in> bytes. The HEX option causes data to be converted to a hexadecimal representation (useful for binary data). If the HEX option is specified, letters in the output (a through f) are in lowercase.

On Thursday 01 August 2013, Rothbauer, Stefan wrote: > Hello, > > I set up cmake to use a external project. This 3rd party library writes out > a file which contains all include paths set by this library. For the > master cmake project I need to read this information at build time into a > cmake

However, if you just need your build to fail if a single file is missing you can use the cmake -E command line mode to compare the file with itself. This will make sure the build always stops if the provided file doesn't exist, it's cross-platform safe …

See also use CMake to get build-time svn revision That may not be enough if your make environment checks all the "needs to be rebuild" prior of calling the necessary steps (e.g. in Ninja only the outputs of custom commands are re-scanned; for more details see the Ninja documentation for the restat rule variable and this discussion which led to ...

[prev in thread] [next in thread] List: cmake Subject: [CMake] read file content to a variable at build-time From: "Rothbauer, Stefan" <stefan.rothbauer ...