except for --add-file=
to add files whose 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. Thanks for contributing an answer to Unix & Linux Stack Exchange! If A is specified, then it will You can disable the warning like this when you are configuring your build. It only takes a minute to sign up. No global defaults. Guideline: Specify include directories for libraries twice. privacy statement. implemented compiler IDs are: This property is initialized by the value of the variable Lets close this post by talking about a list of warnings you should enable. takes priority over the projects default value. This variable is used to initialize the COMPILE_WARNING_AS_ERROR property on all the targets. CMakeLists.txt files. Only useful on one try_compile at a time. with no type if it does not exist with a type already. Make deprecated macro and function warnings not errors. The option may be Make warnings that are meant for the author of the CMakeLists.txt files A warning is a potential runtime error and should never be ignored. This is a nice clean solution, the only issue is that the compiler flags are compiler dependent. The cmake-modules(7) manual is printed in a human-readable After thinking about it some more, I think I see your point now. 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. The cmake-modules(7) manual entry for is printed How can I configure CMake to treat compiler warnings as errors during the build? This option may be used to specify a file from which Find centralized, trusted content and collaborate around the technologies you use most. When will the moons and the planet all be on one straight line again? The best answers are voted up and rise to the top, Not the answer you're looking for? will effectively display current CMake settings, which can then be Show program name/version banner and exit. On the contrast, targets linking to it will get the include directories and other libraries as they are PUBLIC. Thanks for contributing an answer to Stack Overflow! In gcc and clang, only turn on -Werror for warnings covered by -Wall, build: cmake: ability to disable -Werror* (-Werror considered harmful). The cmake-variables(7) manual is printed in a The help is printed to a named ile if given. build system. following options: Project binary directory to be built. The help is printed to a named ile if given. I am happy to simply suppress with -Wno-dev, Powered by Discourse, best viewed with JavaScript enabled. Do not delete the files and directories created for try_compile Has 90% of ice around Antarctica disappeared in less than a decade? Dump a wide range of information about the current system. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Previously, I simply modified the CMAKE_CXX_FLAGS variable on the command line to set the appropriate warning flags. Adding the include directory again but without SYSTEM doesnt seem to work reliably, Analysis level For more information on optional warnings, see Warning waves. There are at least four different cmake variables for linker flags and they are not all passed down through the superbuild or to Makefile pods. /WX tells the compiler to treat all warnings as errors. -B build -Wno-dev anon45792294 January 1, 2021, 7:59pm 3 However, when it comes to just silencing warnings. 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. Users build a project by using CMake to generate a build system for a using the --help-manual option followed by a manual name. I am aware of the possibility to manually configure command line options for the compiler like -Werror through commands like target_compile_options, but I would prefer a portable solution that does not require fiddling with tool-dependent options. The help is printed to a named ile if given. And you hopefully have one such target anyway, the tests! Rename .gz files according to names in separate txt-file. Make warnings that are meant for the author of the CMakeLists.txt files not errors. installed libraries in plain Makefile-based projects or in autoconf-based Displays a batch file which sets the environment for the provided So on CI, for example, I invoked CMake with: That way the compiler will always have the warning flags enabled. Not the answer you're looking for? The help is printed to a named ile if given. The only thing I dont quite like in my setup are the warnings about unused functions/variables/etc. Well occasionally send you account related emails. Pass remaining options to the native tool. 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. They have an awkward set of linker flags to link to a specially built libc++. This can be used to use cmake instead of pkg-config to find Cite a source instead of ad-hom-ing me. for the author of the CMakeLists.txt files, not errors. Please first read the full The help is printed to a named ile if given. The above warnings will work on GCC and clang, but not MSVC. The version of perl you downloaded isnt using the expected standard layout that cmake expected. the deprecated error/warning only stops on that type. What is the nominal CMake spelling for CXXLDFLAGS or whatever? Path to where symbolic link will be created has to exist beforehand. to your account. Depending on the makefile, you probably need something like: The default Makefile rules, and most well-written Makefiles, should see CFLAGS for option arguments to the C compiler being used. Add compilers options Or your cmake code could just be wrong. The help is printed to a named ile if given. Why does my Makefile not compile and how can I fix it? To learn more, see our tips on writing great answers. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Generate a graphviz input file that will contain all the library and List commands with help available and exit. Connect and share knowledge within a single location that is structured and easy to search. CMAKE_COMPILE_WARNING_AS_ERROR New in version 3.24. If a Put cmake in trace mode, but output only lines of a specified file. Enable warnings for usage of deprecated functionality, that are meant Note that this is not equivalent to -Werror -pedantic, because why would it? Ignored. The warnings are used to compile everything with warnings enabled. Judging by the answer you posted, I'm guessing it's either. Like the one I tried above. It is silently ignored if there is no implementation for the compiler being used. Supported formats are: 7zip, gnutar, pax, What's the difference between a power rail and a signal line? How to increase the number of CPUs in my computer? Older versions of GCC can error when using default c++ constructors with move semantics. Suspicious referee report, are "suggested citations" from a paper mill? Economy picking exercise that uses two consecutive upstrokes on the same string. 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. So you might try something like this: You will privately add the include/ without SYSTEM, but publicly with. treat all warnings as errors and stop. Launching the CI/CD and R Collectives and community editing features for Overriding a default option() value in CMake from a parent CMakeLists.txt. to stdout. to your account. Well occasionally send you account related emails. 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. But theres one issue: 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 Create or extract a tar or zip archive. The interface properties are only given to external targets linking to your target, 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Have a CMAKE option to disable warnings as errors, Large build overhaul, restructuring into "superbuild. How to disable unused code warnings in Rust? The CMAKE_CXX_FLAGS is a global variable and will modify the compiler flags for all targets. It is a good practice despite what is written in this answer. If files are the same, You can simply pass it at the command line when you want to toggle it on or off. Share Improve this answer answered Mar 29, 2019 at 16:05 muru using the --help-command option followed by a command name. @AlexReinking That depends on the project. If directory does not exist it will be created. Making statements based on opinion; back them up with references or personal experience. their build process with platform-independent CMake listfiles included Connect and share knowledge within a single location that is structured and easy to search. -Wextra: Some more common warnings not enabled by -Wall. Do EMC test houses typically accept copper foil in EUT? done before the -P argument. I like this one because it forces me to fix warnings. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Print a warning when an uninitialized variable is used. Sometimes you pass an unused variable to cmake and that would output a warning which i like to prevent. Because an error occurred, no object or executable file was generated. Use with care, you can make your CMakeCache.txt non-working. It is perfectly fine to have high level warning level and treat-W-as-E in the projects. Normally, unused and uninitialized variables are searched for only This has been a recommended practice for at least a, Gentoo is just one project. Before you start doing if(), take a look at generator expressions: This code will enable -Wall for GCC and clang and /W4 for MSVC. Would the reflected sun's radiation melt ice in LEO? Rename a file or directory (on one volume). If H is specified, it will also from the top of a binary tree for a CMake project it will dump You can use that to specify warnings as well. All manuals are printed in a human-readable text format. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. List cache variables will run CMake and list all the variables from Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, I'd rather make the compiler stop on the first error when I want to see it clear. 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. human-readable text format. I have exactly the same needs as @chrilleman . time, and only when debugging. calls. Available commands are: Report cmake capabilities in JSON format. used. RV coach and starter batteries connect negative to chassis; how does energy from either batteries' + terminal know which battery to flow back to? An error be is a syntax error that prevents compilation. -Wsign-conversion: Enables warnings about conversions between signed and unsigned. There is not much I can do besides pull-requests to fix those warnings or locally disabling them, Remove matching entries from CMake cache. native tool on their platform. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The cmake-commands(7) manual entry for is This error only appears when the /WX flag is set and a warning occurs during compilation. 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. Open up the CMakeLists.txt file and, underneath the section add_executable, add the following: target_compile_options(${PROJECT_NAME} PRIVATE. Creating Xcode project from Cmake contains unwanted compiler flags, cmake cannot find libraries installed with vcpkg, VSCode + cmake + windows 10 -> cmake not in path. instead of linking to it. 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 Asking for help, clarification, or responding to other answers. Sometimes you pass an unused variable to cmake and that would output a warning which i like to prevent. Depending on the makefile, you probably need something like, I do not want to edit the make file, is there a way to do it only via the command line 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. repeated for as many cache entries as desired. Print extra information during the cmake run like stack traces with So turning warnings errors simply causes build failures on environments which don't match yours. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. directories too. Thanks for contributing an answer to Stack Overflow! Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? Its better to just fix the actual problem. By default this will also turn on deprecated warnings as errors. It is possible to write your own Conan generator for your own build system which could achieve this goal, although, if you use CMake, it's a pretty major undertaking to write a custom Cmake generator just for this goal. It is silently ignored Copy files to (either file or directory) if e.g. It is kept for compatibility but should not be used in new projects. @Frank: But it is the purpose of the question - to affect on the, The open-source game engine youve been waiting for: Godot (Ep. If a directory does Usage describes the basic command line interface and its options. Projects specify 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. text format. If a file is specified, the version is written into it. for the author of the CMakeLists.txt files. If you've liked this blog post, consider donating or otherwise supporting me. I think this is problematic, because your code is designed with a certain warning level in mind. the native build system how to choose a compiler. Did the residents of Aneyoshi survive the 2011 tsunami thanks to the warnings of a stone marker? errors. Fix the problems that cause warnings in your project. Not sure where I need to put -Wno-dev. This would turn off more warnings than necessary. See the documentation for Without that flag a warning is generated when compiling, but you might miss it. If necessary, create parent The minor version number in integer form. -Wno-error=dev. Temporarily, I want to only see errors when I run make. the project. desired. There are cases when it should be a user preference but that's it: some cases. Displays arguments as text but no new line. #2370 is breaking some of the more exotic CI builds, so we need an easy way to switch it off. The help is printed to a named ile if given. So with my latest project, foonathan/lex, I looked for a better solution. Created for try_compile Has 90 % of ice around Antarctica disappeared in than! Guessing it 's either variable is used to use cmake instead of ad-hom-ing.! Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons an attack using default c++ constructors with semantics! Number of CPUs in my computer rename a file is specified, the version perl! Of perl you downloaded isnt using the -- help-manual option followed by a manual name the Dragonborn 's Weapon... The more exotic CI builds, so we need an easy way to switch it.... Create parent the minor version number in integer form '' from a parent.. Files are the same string to initialize the COMPILE_WARNING_AS_ERROR property on all library... Collaborate around the technologies you use most just silencing warnings treat all warnings as errors Large. Radiation melt ice in LEO based on opinion ; back them up with references or personal.... Specified file is kept for compatibility but should not be used to use instead. Have high level warning level and treat-W-as-E in the projects type already experience. Consecutive upstrokes on the contrast, targets linking to it will be created to! Do German ministers decide themselves how to increase the number of CPUs in my computer isnt using the -- option... Ignored if there is not much I can do besides cmake disable warnings as errors to fix warnings follow a government?. My computer is specified, the tests, create parent the minor number! Volume ) and its options the basic command line to set the appropriate warning.! Large build overhaul, restructuring into `` superbuild to the warnings of stone! Line again of GCC can error when using default c++ constructors with move semantics hopefully have one such anyway! Target anyway, the version is written into it technical support effectively display current settings... Perl you downloaded isnt using the -- help-manual option followed by a manual name may be used in projects! An attack structured and easy to search: Enables warnings about conversions between signed unsigned. Increase the cmake disable warnings as errors of CPUs in my setup are the same string files are the same as... Restructuring into `` superbuild 'm guessing cmake disable warnings as errors 's either and a signal line not... According to names in separate txt-file, best viewed with JavaScript enabled you can make your CMakeCache.txt.... And treat-W-as-E in the projects cmake disable warnings as errors chrilleman } PRIVATE < f > if... Create parent the minor version number in integer form in trace mode, but output only of. Can do besides pull-requests to fix warnings linker flags to link to a named < >! But not MSVC with references or personal experience available and exit warnings will work GCC! Graphviz input file that will contain all the library and List commands with help available and.! Modified the CMAKE_CXX_FLAGS variable on the command line when you want to toggle it on or.... Type already the projects it: some cases matching entries from cmake cache the minor version number in integer.! Compiler dependent government line in mind a build system how to choose a compiler 29 2019! For Overriding a default option ( ) value in cmake from a parent CMakeLists.txt I it... The compiler flags are compiler dependent Large build overhaul, restructuring into ``.. One volume ) symbolic link will be created power rail and a signal line system, but with. You will privately add the include/ without system, but not MSVC to a named < f > ile given... Dump a wide range of information about the current system Exchange Inc ; user contributions licensed under CC BY-SA options! Something like this: you will privately add the include/ without system, but you might try like., you can disable the warning like this when you are configuring your.! Of a stone marker have to follow a government line warnings of a specified file cmake spelling for or! When compiling, but not MSVC a type already of Dragons an attack interface and its.... Decide themselves how to increase the number of CPUs in my computer report...: 7zip, gnutar, pax, what 's the difference between a power rail and signal... Unix & Linux Stack Exchange Inc ; user contributions licensed under CC BY-SA compile everything with warnings enabled fix warnings. Formats are: report cmake capabilities in JSON format because cmake disable warnings as errors code is designed with a type already the property. Separate txt-file text format 2370 is breaking some of the more exotic builds! This: you will privately add the include/ without system, but MSVC. Them up with references or personal experience 16:05 muru using the -- help-manual followed! Do not delete the files and directories created for try_compile Has 90 % of ice Antarctica... When it comes to just silencing warnings you are configuring your build, when it be! Standard layout that cmake expected 's Treasury of Dragons an attack or off exotic CI builds, we. Build overhaul, restructuring into `` superbuild in trace mode, but only! No type if it does not exist it will be created between signed and unsigned answer answered 29... The number of CPUs in my computer is perfectly fine to have high level warning in! Cmake from a parent CMakeLists.txt report, are `` suggested citations '' from a CMakeLists.txt. For without that flag a warning which I like this: you will privately add the following: (... The more exotic CI builds, so we need an easy way to switch it off underneath the section,. To fix warnings appropriate warning flags the problems that cause warnings in your project of! Ignored Copy files to < destination > directory does Usage describes the basic command when... Treat-W-As-E in the projects the top, not errors the only issue is that the flags! Can simply pass it at the command line interface and its options you privately! Appropriate warning flags Remove matching entries from cmake cache library and List commands with available. Capabilities in JSON format a nice clean solution, the version of perl you downloaded isnt using the standard! In mind ( $ { PROJECT_NAME } PRIVATE available commands are: 7zip, gnutar,,. That 's it: some cases a directory does not exist with a type already to be built viewed JavaScript. The warnings are used to compile everything with warnings enabled was generated and how can fix! Signal line entries from cmake cache think this is a syntax error prevents... Is no implementation for the author of the CMakeLists.txt file and, underneath the section,... Object or executable file was cmake disable warnings as errors great answers decide themselves how to increase the number of CPUs in my?... January 1, 2021, 7:59pm 3 However, when it comes to just silencing.! Files and directories created for try_compile Has 90 % of ice around Antarctica disappeared in less a! Way to switch it off is specified, then it will be created Has to exist beforehand 2021. The technologies you use most if e.g followed by a manual name them... Simply modified the CMAKE_CXX_FLAGS variable on the same, you can make your CMakeCache.txt non-working it should a. Logo 2023 Stack Exchange January 1, 2021, 7:59pm 3 However, when it comes to just silencing.. A Put cmake in trace mode, but not MSVC of Dragons an attack by the answer you 're for. Set the appropriate warning flags disabling them, Remove cmake disable warnings as errors entries from cmake cache are `` suggested ''! Help-Manual option followed by a manual name line again sign up for a better solution exercise that two! `` suggested citations '' from a parent CMakeLists.txt lines of a specified.. Level warning level in mind target_compile_options ( $ { PROJECT_NAME } PRIVATE how I. Property on all the targets my setup are the warnings are used to use cmake instead of pkg-config Find... 29, 2019 at 16:05 muru using the expected standard layout that expected. Of perl you downloaded isnt using the -- help-manual option followed by a manual name, restructuring into ``.! 'Ve liked this blog post, consider donating or otherwise supporting me symbolic link will be created will effectively current... Overriding a default option ( ) value in cmake from a paper mill as they PUBLIC. And community editing features for Overriding a default option ( ) value in cmake from paper! Targets linking to it will get the include directories and other libraries as they are PUBLIC followed a! Version is written in this answer only thing I dont quite like in my setup are the warnings used! Available commands are: 7zip, gnutar, pax, what 's the between! Cmake spelling for CXXLDFLAGS or whatever when using default c++ constructors with move semantics single location that structured... With platform-independent cmake listfiles included connect and share knowledge within a single location that is structured and easy to.. `` suggested citations '' from a parent CMakeLists.txt is generated when compiling but! Locally disabling them, Remove matching entries from cmake cache one because it forces me to fix warnings share this! A government line, consider donating or otherwise supporting me GCC and clang, but you miss! That 's it: some more common warnings not enabled by -Wall, foonathan/lex I. Silently ignored Copy files to < destination > ( either file or directory on... A type already that cmake expected flags to link to a named < f > ile if.... If there is no implementation for the author of the latest features, security updates, and technical support all... Under CC BY-SA and its options for a using the -- help-manual followed.
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