cmake disable warnings as errors

The cmake-modules(7) manual entry for is printed The reason it didnt work with PUBLIC was because public properties are both PRIVATE and INTERFACE. And as the warnings are specified as PRIVATE, they will only be used when compiling your library. Copyright 2000-2017 Kitware, Inc. and Contributors. Later compilation doesnt touch that file again, so the warnings is not emitted again. using the --help-policy option followed by a policy name. Its better to just fix the actual problem. It only takes a minute to sign up. However, when it comes to just silencing warnings. 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. This option is best used for one try-compile at a Before you start doing if(), take a look at generator expressions: This code will enable -Wall for GCC and clang and /W4 for MSVC. Specify whether to treat warnings on compile as errors. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Does With(NoLock) help with query performance? As final solutions, I think we should do one of two approaches: Create a CMake function called for all our targets. Copy files to (either file or directory). The help is printed to a named ile if given. So, it may be a configuration issue. The list contains all properties for which help may be obtained by 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. Similarly, you can use CXXFLAGS for providing options to the C++ compiler, and LDFLAGS for the linker. The warnings are used to compile everything with warnings enabled. I like this one because it forces me to fix warnings. Copy files to (either file or directory) if treat all warnings as errors and stop. The cmake-properties(7) manual entries for are The following language-independent options do not enable specific warnings but control the kinds of diagnostics produced by GCC. This is required and must be first. It would be nice to turn this off with a CMake flag. I am looking for a more general option, something like: CMAKE_WARN_AS_ERROR. The help is printed to a named ile if given. CACHE signature. For example, I compile with -Wconversion but my dependencies dont. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. -Wextra: Some more common warnings not enabled by -Wall. I am trying to do something extremely simple: I have to work on a C++ project that raises a lot of compilation warnings. With target_compile_options() you can also specify compiler flags for your target. as in example? with the following keys: A JSON object with version information. I have exactly the same needs as @chrilleman . - 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. the deprecated error/warning only stops on that type. Make warnings that are meant for the author of the CMakeLists.txt files not Open up the CMakeLists.txt file and, underneath the section add_executable, add the following: target_compile_options(${PROJECT_NAME} PRIVATE. Rename .gz files according to names in separate txt-file. projects (via share/aclocal/cmake.m4). Only useful on one try_compile at a time. are Use with care, you can make your CMakeCache.txt non-working. Suppress deprecated functionality warnings. There are cases when it should be a user preference but that's it: some cases. In this article, we will add compiler options that will raise warnings in ST's generated files and we will ask CMake to suppress these warnings but only for these files. The interface properties are only given to external targets linking to your target, the native build system how to choose a compiler. The CMAKE_CXX_FLAGS is a global variable and will modify the compiler flags for all targets. The help is printed to a named ile if given. is logged. 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. You can disable the warning like this when you are configuring your build. to your account. Path to where symbolic link will be created has to exist beforehand. They have their policy and that's fine. If a file is specified, the version is written into it. is there a chinese version of ex. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? CMakeLists.txt files. in a human-readable text format. My cmake script searches for Perl libs, but I get the following warning message: How can I disable this? CMakeCache.txt file, globbing expressions using * and ? Pass remaining options to the native tool. privacy statement. More info about Internet Explorer and Microsoft Edge. To fix this error, you must eliminate every warning in your project. What are examples of software that may be seriously affected by a time jump? I have found the dev and deprecated warning option to do this but ill like this to happen on any warning. The best answers are voted up and rise to the top, Not the answer you're looking for? Warnings are important, especially in C++. following options: Project binary directory to be built. Lines may not start in - Make warnings that are meant for the author of the CMakeLists.txt files 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. I am happy to simply suppress with -Wno-dev, Powered by Discourse, best viewed with JavaScript enabled. 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 Otherwise its a painful guessing game. Enable deprecated functionality warnings. success) in such situations instead. So on CI, for example, I invoked CMake with: That way the compiler will always have the warning flags enabled. The help is printed to a named ile if given. Jordan's line about intimate parties in The Great Gatsby? It would be very helpful if I can set the CMakeLists.txt in some way that it could just stop whenever theres something it doesnt understand. -Werror is a compiler flag that causes all compiler warnings to be treated as errors. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Speaking as someone who regularly uses top-of-tree compiler builds, where warnings break frequently, hard-coded warnings-as-errors is a blight. While the above method works greater for most libraries, it doesnt work with header-only libraries. Making statements based on opinion; back them up with references or personal experience. The MSan builds, in particular. I am looking for a more general option, something like: CMAKE_WARN_AS_ERROR. 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. Use target_compile_options() and generator expressions to enable the warnings for your library target, I'd like to thus propose closing this issue. I had this happen when someone mangled python at my company in a bizzare way. By default this will also turn off deprecated warnings as errors. Fix the problems that cause warnings in your project. You signed in with another tab or window. Are there conventions to indicate a new item in a list? The option may be repeated for as many cache entries as language. Older versions of GCC can error when using default c++ constructors with move semantics. The trick is to use target_include_directories(my_library SYSTEM PUBLIC include/). Suspicious referee report, are "suggested citations" from a paper mill? I recommend browsing through the list of warnings (GCC/clang) and taking a look for yourselves. cmake listfiles. documentation at https://cmake.org before posting questions to true if the generator supports platforms and false otherwise. Like the one I tried above. I occasionally forgot to do that, implemented a feature, pushed it to CI. How to disable unused code warnings in Rust? Create