cmake disable warnings as errorscmake disable warnings as errors

Older versions of GCC can error when using default c++ constructors with move semantics. Developers who enable -Werror are making a statement: we care about our code base, and we won't accept warnings here. Make deprecated macro and function warnings errors. Use TreatWarningsAsErrors to treat all warnings as errors. Targets linking to it will not get the warnings enabled. -Werror is a compiler flag that causes all compiler warnings to be treated as errors. It forces me and countless other package maintainers, devops teams, and so on, to patch your build. Suppress warnings for usage of deprecated functionality, that are meant I occasionally forgot to do that, implemented a feature, pushed it to CI. While we still have only a single place to list all the options. Somewhat annoying, but still useful. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. The help is printed to a named ile if given. and never used when compiling the target itself. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. on the cmake(1) command line, this property is ignored. rev2023.3.1.43269. Lets close this post by talking about a list of warnings you should enable. files. Despite the help with some scripting, sometimes a user might do some custom CLI change, thinking he changed a parameter, but actually not due to a little typo. I'm sure there are other projects which also have reasons to have this policy but although I don't have stats I'm pretty sure they are just a minority. Per a local spike test with clang++-3.7, changing from -Wall -Werror to -Werror=all is enough to demote the clang-3.7: error: -lc++abi: 'linker' input unused from an error back to a warning. Add compilers options native tool on their platform. executable dependencies in the project. The cmake-policies(7) manual is printed in a An interface library can only have INTERFACE targets. CMakeLists.txt files. The currently implemented compiler IDs are: GNU Clang AppleClang Fujitsu FujitsuClang IBMClang Intel If the cmake --compile-no-warning-as-error option is given on the cmake (1) command line, this property is ignored. When creating a library you specify include directories and link to other libraries. The help is printed to a named ile if given. How to suppress all warnings being treated as errors for format-truncation, The open-source game engine youve been waiting for: Godot (Ep. See the Sometimes you pass an unused variable to cmake and that would output a warning which i like to prevent. CMakeGraphVizOptions.cmake for more details. If files are the same, If youre a good citizen youve created an interface library target: That way users of the library can just use target_link_libraries() and will get the proper include paths automatically. What is CMake equivalent of 'configure --prefix=DIR && make all install '? Specify the format of the archive to be created. exist, the command returns a non-zero exit code, but no message mkfifo with all permissions still errors with permissions denied for other user, tp-link Archer T4U make error (kali linux), Cross-compiling Linux kernel fails on bzImage. However, when it comes to just silencing warnings. Changing some of the variables may result build system. Find centralized, trusted content and collaborate around the technologies you use most. On the contrast, targets linking to it will get the include directories and other libraries as they are PUBLIC. Already on GitHub? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. the list. That way you will automatically have warnings when compiling your project but other users wont. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Possible generator names are specified in the Looking for a 'cmake clean' command to clear up CMake output, Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition, Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_u64 on Intel CPUs, Copy file from source directory to binary directory using CMake. Disable warnings for GTest ddnet/ddnet#978 added a commit to ddnet/ddnet that referenced this issue tonka3000 mentioned this issue on Jan 15, 2018 Remove -WX flag in msvc builds because it will break builds with msvc 15.5 lasote/conan-gtest#37 coder0xff mentioned this issue on Jan 27, 2018 The currently The best answers are voted up and rise to the top, Not the answer you're looking for? Has Microsoft lowered its Windows 11 eligibility criteria? If directory does not exist it will be created. The help is printed to a named ile if given. More info about Internet Explorer and Microsoft Edge. Thanks for contributing an answer to Stack Overflow! then returns 0, if not it returns 1. The cmake-policies(7) manual entry for is Enable warnings for usage of deprecated functionality, that are meant for the author of . silently ignored. Let's fix that. in a human-readable text format. Since the option is set via a target property and those do not propagate to dependent targets, I don't see an issue where my decision to enforce. Create or extract a tar or zip archive. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. With target_compile_options() you can also specify compiler flags for your target. When prototyping you often have incomplete code which you cant compile, because a function isnt used. Warnings are diagnostic messages that report constructions that are not inherently erroneous but that are risky or suggest there may have been an error. Windows CE SDK installed in VS2008. cmake-generators(7) manual. So you might try something like this: You will privately add the include/ without SYSTEM, but publicly with. Not the answer you're looking for? If the : portion is given it must be one of the types Sometimes you pass an unused variable to cmake and that would output a warning which i like to prevent. This is to prevent erroneous user parameter settings. Do not actually run configure and generate It is silently ignored How can I silence the warning if this is happening inside the cmake find_package code for PerlLibs ? may sign up on the CMake web page. The cmake-commands(7) manual is printed in a The minor version number in integer form. While the above method works greater for most libraries, it doesnt work with header-only libraries. Make warnings for usage of deprecated macros and functions, that are meant Created using. CMAKE_COMPILE_WARNING_AS_ERROR New in version 3.24. Before you start doing if(), take a look at generator expressions: This code will enable -Wall for GCC and clang and /W4 for MSVC. I am working up a PR to use that phrasing for both gcc and clang. however change the results of the try-compiles as old junk from a The loaded entries take priority over the This is required and must be first. But they did prevent a couple of bugs, so Ill keep them enabled. Toolset specification for the generator, if supported. Process the given cmake file as a script written in the CMake zero exit code (i.e. The help is printed to a named ile if given. That way external code will not get warnings from header files but your code will. Windows CE SDK installed in VS2005. Have a CMAKE option to disable warnings as errors, Large build overhaul, restructuring into "superbuild. with no type if it does not exist with a type already. This option may be used to specify a file from which -Wno-error=dev. If a directory does in more variables being created. If the cmake --compile-no-warning-as-error option is given If you've liked this blog post, consider donating or otherwise supporting me. Change color of a paragraph containing aligned equations, Ackermann Function without Recursion or Stack. The simpler, the better. So the header files have a couple of instances where the warning is issued, which is annoying. When cmake is first run in an empty build tree, it creates a The cmake-modules(7) manual is printed in a human-readable for the author of the CMakeLists.txt files. true if the generator supports platforms and false otherwise. warn about other files as well. What you can do instead is create a non-interface target that has to be compiled, just for the purposes of checking warnings. The above warnings will work on GCC and clang, but not MSVC. When will the moons and the planet all be on one straight line again? The following cmake -E commands are available only on UNIX: Create a symbolic link naming . @Karthik, muru gave you the command line: @muru, your comment sounds like the answer here; would you mind providing it as such? deprecation warnings. -Wno-dev Here is a CLI example where I configure/generate my build and turn off cmake dev warnings. The list contains all policies for which help may be obtained by You can disable the warning like this when you are configuring your build. Use a warning pragma to disable or suppress a specific warning. containing SET commands that use the CACHE option, not a CMake provides builtin command-line tools through the signature: Run cmake -E or cmake -E help for a summary of commands. The text was updated successfully, but these errors were encountered: @jamiesnape Please link to one or two breaks, for our reference. text format. display also advanced variables. Print a trace of all calls made and from where. desired. Whatever the case is. I would like to make that warning an error, any any other CMake Warning. Ackermann Function without Recursion or Stack. A Wiki is provided containing answers to frequently asked questions. Here is a CLI example where I configure/generate my build and turn off cmake dev warnings. The help is printed to a named ile if given. Remove matching entries from CMake cache. I am looking for a more general option, something like: CMAKE_WARN_AS_ERROR. jakebolewski added the build label on Feb 19, 2018 jakebolewski changed the title Have a CMAKE object to disable warnings as errors Have a CMAKE option to disable warnings as errors on Feb 19, 2018 Read file names from the given file, one per line. Fix the problems that cause warnings in your project. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Then there are also no warnings that make it difficult to spot the errors ;), It might be a good idea to tag this question with the specific compiler you're using, since the answer depends on this. The warnings are used to compile everything with warnings enabled. @jamiesnape Per nightly msan 107 that I launched by hand, it looks like we're back to "normal" now as far as the msan build warnings. The trick is to use target_include_directories(my_library SYSTEM PUBLIC include/). make CFLAGS="-Wno-error=format-truncation" The default Makefile rules, and most well-written Makefiles, should see CFLAGS for option arguments to the C compiler being used. CMake provides a helper for Makefile-based projects with the signature: Search a package using find_package() and print the resulting flags This property is not implemented for all compilers. Ignored. privacy statement. Thanks for contributing an answer to Stack Overflow! the deprecated error/warning only stops on that type. The immediate problem is solved, and I am highly sceptical that a CMake option (a programmatic way to turn off errors) will be of use. This option may be used to specify a setting that May only be specified once. What is CMake equivalent of 'configure --prefix=DIR && make all install '? Suppress warnings that are meant for the author of the Making statements based on opinion; back them up with references or personal experience. Only load the cache. If A is specified, then it will Is lock-free synchronization always superior to synchronization using locks? Or it may be related to the cmake version on Ubuntu (3.17). Projects specify An error be is a syntax error that prevents compilation. Thank you! #2370 is breaking some of the more exotic CI builds, so we need an easy way to switch it off. Powered by Discourse, best viewed with JavaScript enabled. Why did the Soviets not shoot down US spy satellites during the Cold War? Which basecaller for nanopore is the best to produce event tables with information about the block size/move table? warning treated as error - no object file generated. This option may also be given as a single argument: - t.niese Nov 25, 2020 at 20:45 1 It might be a good idea to tag this question with the specific compiler you're using, since the answer depends on this. How can I recognize one? There compilation failed due to warnings, which was annoying. paxr (restricted pax, default), and zip. Copy files to (either file or directory) if printed in a human-readable text format. You should open up a new question and create a reproducible scenario to answer your new question. (To clean only, use --target clean.). See the documentation for List policies with help available and exit. Do a bit more searching and you will hear the shouting from the mountaintops that warnings as errors is good for developers, but not for consumers. No configure or generate step is performed and the cache I have exactly the same needs as @chrilleman . This is problematic when you use add_subdirectory () to compile some external dependencies which do not compile without warnings. How to suppress PAM audit logs for RHEL8? Guideline: Specify include directories for libraries twice. Make deprecated macro and function warnings not errors. The only thing I dont quite like in my setup are the warnings about unused functions/variables/etc. -fsyntax-only It is kept for compatibility but should not be used in new projects. Pass remaining options to the native tool. Displays a batch file which sets the environment for the provided calls. using the --help-variable option followed by a variable name. Specify whether to treat warnings on compile as errors. It would use target_compile_options to add those flags. The list contains all variables for which help may be obtained by The text was updated successfully, but these errors were encountered: Successfully merging a pull request may close this issue. Compilers will not issue warnings from header files originating from there. Later compilation doesnt touch that file again, so the warnings is not emitted again. to your account. It decouples the warning options from your version control system and build files. as file names even if they start in -. What does a search warrant actually look like? Can you just provide answer on how to ignore all warnings instead of giving advices nobody is looking for? For the future readers: this opinion is controversial at best. (It allows some warnings to remain configured as warnings, instead of errors.) CMAKE_GENERATOR_TOOLSET variable for details. To fix this error, you must eliminate every warning in your project. The cmake-modules(7) manual entry for is printed Treating warnings as errors is a good practice for CI systems with a fixed and predictable toolchain, but it is inappropriate to force on all users. cmake -S . By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Create MD5 checksum of files in md5sum compatible format: Remove the file(s). then the will be converted to an absolute path. provided at cmake@cmake.org. created. CMakeCache.txt file and populates it with customizable settings for -D:= or -D=. Path to where symbolic link will be created has to exist beforehand. for the author of the CMakeLists.txt files, not errors. @ixSci - flagged for CoC. in CMAKE_SOURCE_DIR and CMAKE_BINARY_DIR. The following cmake -E commands are available only on Windows: Displays a batch file which sets the environment for the provided Make warnings that are meant for the author of the CMakeLists.txt files not -Wall: A better name would be -Wcommon. Don't use /WX to compile. Copy directories to directory. is logged. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. It could be user error: You could be using find_package incorrectly. A generator is responsible for generating a particular CMAKE_COMPILE_WARNING_AS_ERROR if it is set when a target is The cmake-properties(7) manual entries for are I'd like to thus propose closing this issue. Analysis level For more information on optional warnings, see Warning waves. CMake is a cross-platform build system generator. they have changed. Well occasionally send you account related emails. Print extra information during the cmake run like stack traces with Because an error occurred, no object or executable file was generated. To learn more, see our tips on writing great answers. as in example? In any case, I have a WIP patch in the wings that changes -Wall -Werror to -Werror=all, which would be a superior medium-term fix if it solves the current breaks. from the top of a binary tree for a CMake project it will dump projects (via share/aclocal/cmake.m4). Tip: For header-only libraries enable warnings on the test target of the library. You can simply pass it at the command line when you want to toggle it on or off. This can be used to use cmake instead of pkg-config to find You signed in with another tab or window. time, and only when debugging. The help is printed to a named ile if given. If any of the listed files already do not Sign in How to react to a students panic attack in an oral exam? List properties with help available and exit. I am happy to simply suppress with -Wno-dev, Powered by Discourse, best viewed with JavaScript enabled. I can't quite tell if the clang linker complaint is part of -Wall or something else. Already on GitHub? The given file should be a CMake script This error only appears when the /WX flag is set and a warning occurs during compilation. You either have to remove -Werror or manually disable warnings on the external target somehow. printed in a human-readable text format. This enables warning level four, which is a lot but not too much, and treats them as errors. Build code needs to maintained and fixed just like any other code. -Wsign-conversion: Enables warnings about conversions between signed and unsigned. Not sure where I need to put -Wno-dev. When I try to compile I get the following error Code: Select all error: 'func' may be used uninitialized in this function [-Werror=maybe-uninitialized] I'm looking at cmakelists.txt target_compile_options but I cant find any examples of how to disable the warning Any help would be appreciated, Thanks nvannote Posts: 51 Do EMC test houses typically accept copper foil in EUT? 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. To fix, use one of the following techniques. Asking for help, clarification, or responding to other answers. The help is printed to a named ile if given. But how do you manage the very compiler-specific flags in CMake? Specify platform name if supported by generator. Theoretically Correct vs Practical Notation. If H is specified, it will also In gcc and clang, only turn on -Werror for warnings covered by -Wall, build: cmake: ability to disable -Werror* (-Werror considered harmful). Sadly, this doesnt work. This variable is used to initialize the COMPILE_WARNING_AS_ERROR property on all the targets. To fix this error, you must eliminate every warning in your project. It is silently ignored if there is no implementation for the compiler being used. Why did the Soviets not shoot down US spy satellites during the Cold War? the CMake cache that are not marked as INTERNAL or ADVANCED. rev2023.3.1.43269. I recommend browsing through the list of warnings (GCC/clang) and taking a look for yourselves. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. They have their policy and that's fine. No global defaults. Make warnings that are meant for the author of the CMakeLists.txt files not errors. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? Change the current working directory and run a command. Creating Xcode project from Cmake contains unwanted compiler flags, cmake cannot find libraries installed with vcpkg, VSCode + cmake + windows 10 -> cmake not in path. Use with care, you can make your CMakeCache.txt non-working. following keys: A string containing the name of the generator. to load cache entries before the first pass through the projects So with my latest project, foonathan/lex, I looked for a better solution. Enable warnings for usage of deprecated functionality, that are meant Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. directory and it must exist. human-readable text format. Not the answer you're looking for? If a How does a fan in a turbofan engine suck air in? Display the current environment variables. If variables are defined using -D, this must be Create directories. The < value > will be created be is a question and create a non-interface target that has to cmake disable warnings as errors... Cmake file as a script written in the cmake ( 1 ) command line, this be! If not it returns 1 tab or window type if it does not exist with a already. Tables with information about the block size/move table information during the Cold War that file,! Will get the include directories and link to other libraries to answer your question. In cmake to specify a file from which -Wno-error=dev i like to prevent you! Your build warnings are diagnostic messages that report constructions that are meant the... So Ill keep them enabled i would like to make that warning error. Like this: you could be using find_package incorrectly absolute path occurs during compilation specify directories... Cold War compile some external dependencies which do not compile without warnings if destination! Or window we still have only a single place to list all the options is issued, is... And other libraries as they are PUBLIC, Ackermann function without Recursion or Stack something... Is lock-free synchronization always superior to synchronization using locks very compiler-specific flags in cmake occurred, object... Warning which i like to make that warning an error be is a CLI example where i configure/generate build! Is annoying path to where < new > symbolic link will be created has to exist beforehand a PR use... Configure or generate step is performed and the planet all be on one straight cmake disable warnings as errors?! Superior to synchronization using locks them as errors, Large build overhaul, restructuring into `` superbuild forces me countless... /Wx flag is set and a warning occurs during compilation MD5 checksum of files in md5sum format. Powered by Discourse, best viewed with JavaScript enabled version number in integer form switch it off GCC/clang! Setting that may only be specified once because a function isnt used your code will get! We need an easy way to switch it off error occurred, no object or executable file generated... Need an easy way to switch it off builds, so we need an easy way to switch it.! For most libraries, it doesnt work with header-only libraries enable warnings on the cmake -- option. Ackermann function without Recursion or Stack some external dependencies which do not sign in how to suppress all instead... For the purposes of checking warnings on unix: create a non-interface target has. Treat warnings on compile as errors. ) a new question lets close this post by talking a! Free GitHub account to open an issue and contact its maintainers and the i! Warning occurs during compilation configure or generate step is performed and the planet all be on straight... Which you cant compile, because a function isnt used the cmake disable warnings as errors readers: this is. And link to other answers automatically have warnings when compiling your project does exist. That report constructions that are not inherently erroneous but that are meant for the future readers this! Cmakelists.Txt files not errors. ) compiler flag that causes all compiler warnings to configured. All install ' add_subdirectory ( ) to compile some external dependencies which do not sign in how to vote EU! Exotic CI builds, so we need an easy way to switch it off, copy and this. Header-Only libraries warnings when compiling your project a compiler flag that causes compiler! Created using cmake version on Ubuntu ( 3.17 ) cmake dev warnings ( 1 ) command line you! Tell if the generator been an error only thing i dont quite like in my setup are the are... Have warnings when compiling your project but other users wont method works greater for most libraries, doesnt... Function without Recursion or Stack the moons and the cache i have exactly same! Can error when using default c++ constructors with move semantics files to < destination > either. Only on unix: create a reproducible scenario to answer your new.. Include/ without system, but not too much, and so on, to patch your build ; use. Issue warnings from header files have a cmake project it will is lock-free synchronization always superior to synchronization using?! Spy satellites during the cmake ( 1 ) command line, this is. Another tab or window at the command line, this must be <. Dev warnings later compilation doesnt touch that file again, so the header files but your code will get. File generated in an oral exam clean. ) of bugs, so Ill keep them enabled, it... Warning treated as error - no object or executable file was generated isnt used students panic attack an! The given cmake disable warnings as errors file as a script written in the cmake run like Stack traces with because an,. Which is a compiler flag that causes all compiler warnings to remain configured as warnings, is! Include directories and other libraries variables may result build system information about the block size/move?! The CMakeLists.txt files not errors. ) for list policies with help and! Working directory and run a command and that would output a warning pragma to disable or a! ) manual is printed to a named < f > ile if given help-variable option followed a... Not exist it will get the warnings are diagnostic messages that report constructions that meant. As they are PUBLIC something else clarification, or responding to other libraries is performed and cache... Number in integer form answer site for users of Linux, FreeBSD and other Un * x-like systems... Projects ( via share/aclocal/cmake.m4 ) variable is used to compile some external dependencies which do not sign in how suppress... For your target simply suppress with -wno-dev, powered by Discourse, best viewed JavaScript! When will the moons and the planet all be on one straight line again, the open-source game youve... Script this cmake disable warnings as errors, you can do instead is create a reproducible scenario to answer your question!: you could be using find_package incorrectly do German ministers decide themselves how to react to students... Error that prevents compilation ( Ep when creating a library you specify include directories link. Executable file was generated Remove -werror or manually disable warnings on compile errors... Still have only a single place to list all the targets variable to and...: create a symbolic link < new > symbolic link < new > link... Silently ignored if there is no implementation for the author of the Making statements based on ;! The variables may result build system and run a command your CMakeCache.txt non-working this URL into your reader... Unix & Linux Stack Exchange is a compiler flag that causes all compiler warnings to be treated error... Gcc and clang will privately add the include/ without system, but not too,. -E commands are available only on unix: create a reproducible scenario to answer your new question and answer for..., any any other cmake warning a the minor version number in integer form touch that file again so... A type already but they did prevent a couple of instances where the is... Cmake zero exit code ( i.e to subscribe to this RSS feed, copy and paste this URL into RSS! Cant compile, because a function isnt used you 've liked this blog post, consider or... Find centralized, trusted content and collaborate around the technologies you use add_subdirectory ( ) to compile external. On compile as errors for format-truncation, the open-source game engine youve been for. And clang a list of warnings ( GCC/clang ) and taking a look for yourselves unused variable cmake. Include/ without system, but publicly with COMPILE_WARNING_AS_ERROR property on all the targets cache i have exactly the needs... For more information on optional warnings, see our tips on writing great answers that would output warning. Answer site for users of Linux, FreeBSD and other libraries as are... A trace of all calls made and from where open up a new and! Working up a new question it allows some warnings to be compiled, for... A is specified, then it will is lock-free synchronization always superior to synchronization using locks warning pragma disable! Cmake version on Ubuntu ( 3.17 ) dont quite like in my setup are the enabled... Cmake version on Ubuntu ( 3.17 ) or suppress a specific warning i... To vote in EU decisions or do they have to Remove -werror or manually disable warnings compile! An easy way to switch it off bugs, so the header files a... Occurred, no object file generated switch it off only a single place list. Forces me and countless other package maintainers, devops teams, and so on, to patch your build you. Zero exit code ( i.e from there exactly the same needs as @ chrilleman recommend browsing through the list warnings. With -wno-dev, powered by Discourse, best viewed with JavaScript enabled, not errors. ) (! Making statements based on opinion ; back them up with references or personal experience it will be.... Human-Readable text format the CMakeLists.txt files not errors. ) should open up a PR to cmake! Without warnings MD5 checksum of files in md5sum compatible format: Remove file... Default c++ constructors with move semantics other Un * x-like operating systems close this post by about... Warning which i like to make that warning an error be is question. Configure or generate step is performed and the community related to the cmake version on Ubuntu 3.17! Error, you agree to our terms of service, privacy policy and cookie policy configure... Compiler being used answer your new question analysis level for more information on optional warnings, see tips!
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