Cmake check variable empty
WebIf you were to run cmake -L or cmake -LH, you would see all the cached variables and descriptions. The normal set command only sets the cached variable if it is not already set - this allows you to override cached variables with -D. Try: cmake -DMY_CACHE_VAR="command line" -P cache.cmake. You can use FORCE to set a … WebAug 3, 2015 · I added it before my first check in the code snippet above, and it does not enter the true block. CMake documentation says: True if the constant is 1, ON, YES, …
Cmake check variable empty
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WebNov 30, 2024 · I would like to be able to just define a cmake variable without giving it a value, similar to how the C preprocessor can define variables and check if the variable … WebCHECK_VARIABLE_EXISTS (VAR VARIABLE) VAR - the name of the variable VARIABLE - variable to store the result Will be created as an internal cache variable. …
WebApr 8, 2024 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams WebAn empty list is an empty variable, and evaluates to FALSE. So you can use if(NOT MYLIST) message("Either MYLIST is empty or otherwise FALSE") endif() Michael- …
WebSep 24, 2024 · Hm, among CMake functions which I know, an empty string ( "") is accepted only as a positional parameter, so you may define the function as function (x param1 param2 param3) and have direct access to these parameters. Exception is a function like set, which you unlikely want to intercept. – Tsyvarev. WebThe CMake cache may be thought of as a configuration file. The first time CMake is run on a project, it produces a CMakeCache.txt file in the top directory of the build tree. CMake uses this file to store a set of global cache variables, whose values persist across multiple runs within a project build tree. There are a few purposes of this cache.
WebOct 25, 2011 · [prev in list] [next in list] [prev in thread] [next in thread] List: cmake Subject: Re: [CMake] Checking for empty string From: David Cole
WebAug 2, 2024 · One thing that can be a little confusing when you first start using CMake to build your project is the default build type – specified in the CMAKE_BUILD_TYPE variable. CMake has several default build types, but if nothing is specified when configuring your project it defaults to an empty string and no optimization flags are used. check audio chipset windows 10WebDec 24, 2024 · 3. Inspecting the Default Build Types. This section will focus on inspecting build types and their corresponding compiler flags. The CMake BUILD_TYPE variable specifies which build type configuration is selected at build time, and is empty by default. When a build type is not selected for a project, the compiler will only receive flags … check audio is playingWebApr 10, 2024 · Dereferencing an unset variable results in an empty expansion. It is a common pattern in CMake to conditionally set variables knowing that it will be used in code paths that the variable isn’t set. There are examples of this throughout the LLVM CMake build system. An example of variable empty expansion is: check attorney credentialsWebAn empty list is an empty variable, and evaluates to FALSE. So you can use. Yes. If you RTFM about the IF () command you see that you can either use. the variable name MYLIST or the variable value $ {MYLIST}. AFAIK for this. kind of test you would need to put the latter in quotes, however. ... check attorney recordWebThu Jan 31 13:04:13 EST 2008. Previous message: [CMake] Check directory exists. Next message: [CMake] Check directory exists. Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] From the man page: IF (EXISTS file-name) IF (EXISTS directory-name) True if the named file or directory exists. Behavior is well-defined only for full paths ... check at\u0026t phone billWebCMake has many internal variables. Most of them are undocumented. Some of them, however, were at some point described as normal variables, and therefore may be … check attorney license californiaWebTrue if a variable, cache variable or environment variable with given is defined. The value of the variable does not matter. Note the following caveats: Macro arguments … There is one exception to this: if the file which calls include() is located itself in … check attribute js