Cmake if variable is empty

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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 WebMar 18, 2016 · For more details see What's the CMake syntax to set and use variables? and CMake compare to empty string with STREQUAL failed. – Florian. Mar 18, 2016 at 15:31 ... I've put some details in my answer found below. And I added a link to cmake: when to quote variables? which in this case probably explains the inner working better then the ...

CMake compare to empty string with STREQUAL failed

Web2 days ago · In fact, the variables LibTorch_SOURCE_DIR and CMAKE_PREFIX_PATH are indeed empty. The variable Torch_DIR contains /share/cmake/Torch , which is wrong, given that I am on Windows 11 (using Visual Studio). WebFeb 7, 2011 · The if command was written very early in CMake's history, predating the ${} variable evaluation syntax, and for convenience evaluates variables named by its … how to reset tuinyo headphones

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WebSep 12, 2014 · Quoting the CMake documentation:. A variable reference has the form ${variable_name} and is evaluated inside a Quoted Argument or an Unquoted Argument. A variable reference is replaced by the value of the variable, or by the empty string if the variable is not set. In other words, writing PROJECT_BINARY_DIR refers, literally, to … WebJul 16, 2015 · Is there a way to have a list of variables in CMake? Specifically, what I want to do is call an existing function that takes multiple variables and checks whether they evaluate to true. In some cases, some of those variables will be empty lists (which evaluate to false) and the function fails (as intended). But sometimes I don't even need these ... north country dental flagstaff

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WebUpstream: $ {upstream} Actual: \"$ {actual}\"") # Declare a named external dependencies to be resolved via pkgconfig. # Download and integrate named external dependencies. # Downlods must be handled before vcpkg in order to support --only-downloads mode. # Remove all empty directories. WebFeb 13, 2024 · CMAKE_BUILD_TYPE. Specifies the build type on single-configuration generators. This statically specifies what build type (configuration) will be built in this build tree. Possible values are empty, Debug, Release, RelWithDebInfo and MinSizeRel. This variable is only meaningful to single-configuration generators (such as Makefile … north country deli laconia nhWebFeb 8, 2012 · The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more directories to be prepended to all other search directories. This effectively "re-roots" the entire search under given locations. By default it is empty. It is especially useful when cross-compiling to point to the root directory of the target environment and CMake will … how to reset two factor authentication

"WebMar 19, 2024 · By ‘bashism’ I meant “it is not ‘sh’ syntax”. It would mostly work on “advanced” ‘sh’ compliant shells. As you can see, in the second example, the interpreter … " - Cmake if variable is empty

Cmake if variable is empty

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WebApr 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 … WebA single-file solution for Lua CMake build. This file may be simply dropped to the empty subdirectory of another CMake project and added by add_subdirectory. Only Lua runtime will be added to the install. All the sources are downloaded automatically from the official Lua web site using the version set in project.

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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 is defined. It seems that I have to use -D variable_name= instead of just -D variable_name ? It also seems that If I only check if the variable is defined, cmake-3.17.2 posts a warning … WebTrue 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 are not variables. It is not possible to test directly whether a is a non-cache variable. There is one exception to this: if the file which calls include() is located itself in …

WebThe if command was written very early in CMake’s history, predating the ${} variable evaluation syntax, and for convenience evaluates variables named by its arguments as shown in the above signatures. 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

WebThe variable CMAKE_CONFIGURATION_TYPES is used to tell CMake which configurations to put in the workspace. With Makefile-based generators, only one configuration can be active at the time CMake is run, and it is specified with the CMAKE_BUILD_TYPE variable. If the variable is empty then no flags are added to the … 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 …

WebAug 14, 2012 · You can use the CMAKE_GENERATOR_PLATFORM variable. If you want to build a project under win32, you must use -A Win32 to specify the platform. Then the platform will be stored in the CMAKE_GENERATOR_PLATFORM variable. сmake -A x64 .. or cmake -A Win32 .. It is important that if you do not use -A, the variable will be empty

Web$(if $(value $1) tests if the value is non-empty. It's sometimes OK if the variable is defined with an empty value. I'd use $(if $(filter undefined,$(origin $1)) ... And: Moreover, if it's a directory and it must exist when the check is run, I'd use $(if $(wildcard $1)). But would be another function. Target-specific check how to reset ultimate teamWebif (test STREQUAL "") is equivalent to: if ("test" STREQUAL "") If you are intending string value comparison with variables, I always. recommend always using double quotes and … how to reset ultra moonWebDec 21, 2015 · Cmake's generator expressions allow me to use logical expressions within certain function calls. For instance, if I want to add the /MTd compiler flag in Debug mode, I can say. add_compile_options($<$:/MTd>) If CONFIG equals "Debug", this will call add_compile_options with the value "/MTd", otherwise with an empty string.. … how to reset ubuntu in virtualboxWebNov 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 … how to reset ultimate ears blastWebSep 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. north country dodge chargerWebAn 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 … north country development authorityWebJun 28, 2024 · Looks like ENABLE_LIBCXX interpreted as string, not as a variable name (even being unquoted)… ??? north country dental hardwick vt