All variables in cmake are local by default.
Cmake set variable global.
Cmake local variable example set my variable the value is a string by default a local variable is only defined in the current directory and any subdirectories added through the add subdirectory command.
How can i correctly set the global variable source list in the function test.
Once the find script is called by anyone you want the results to be available everywhere.
Set var true set var main cpp set var1 var2 but cmake does also know global cached variables persisted in cmakecache txt and if normal and cached variables of the same name exist in the current scope normal variables do hide the cached ones.
This is so common you can also use the internal type to do the same thing though technically it forces the string type this won t affect any cmake code that depends on the variable.
To extend the scope of a.
Mostly you will use normal variables.
A surprising amount of cmake configuration is still done only through what seem to be global variables despite the existence of more modern forms.
Qt integration works better if vs global qtversion is set to the version findqt4 cmake found.
Vs global variable visual studio project specific global variable.
I am wondering if there is a way to set a global variable except it can be used with other projects that don t initially declare it.
The include command executes another cmake script in the same scope as the calling script.
I have a folder on my system that contains many useful include folders and files for many of my c projects.
It uses the variable cmake module path as a search path.
While you can use the parent scope parameter to increase the scope of a local variable by one layer that mostly makes sense for return values of functions.
Set a normal cache or environment variable to a given value.
Ignored on other generators.
See the cmake language 7 variables documentation for the scopes and interaction of normal variables and cache entries.
Can t cmake do it in a simple and normal way.
It s a lot like the include directive in c c.
I e despite the existence of target compile options if you need to add compiler options only to a c compile you ll still have to use cmake cxx flags.
For example 4.
Signatures of this command that specify a value.
The first line will cause the value to be set no matter what and the second line will keep the variable from showing up in the list of variables if you run cmake l.
It s typically used to define a common set of functions or macros in the calling script.
Or use a gui.
Variables and the global variables cache.
At last the source list is nothing someone suggested that to use macro instead of function but i do need use local variable so i need to use the function instead of macro.
Tell the visual studio generator to set the global variable variable to a given value in the generated visual studio project.
Multiple arguments will be joined as a semicolon separated list to form the actual variable value to be set.