Cmake Set Option Default

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.

Cmake set option default. I tried to set the options on top level cmakelists txt but nothing change. When use rc it will complain the file rc cannot be found. Cmake 3 18 2 documentation cmake modules 7 cmakedependentoption macro to provide an option dependent on other options. Note that this option may be overridden by the project developer or on the command line by setting the variable cmake skip rpath to false.

Set a normal cache or environment variable to a given value. Placeholder expect zero or more arguments. Note that the default option corresponds to the empty value of cmake build type. By default cmake options do not support incremental builds.

First the cmake options for the general configuration of fast dds are described. When the option is not presented a default value is used. Multiple arguments will be joined as a semicolon separated list to form the actual variable value to be set. If a component a imports component b and b defines an option say foo that a does not explicitly set any change in b of the default value of foo will be silently ignored by cmake when doing incremental builds.

I m using the cmake version 3 15 5. Whether to have basis set the appropriate install rpath property of executables and shared libraries instead of cmake. This list consists of toolchains you created in the toolchain settings dialog. By default in case this field has not been set manually the type is debug.

The libfoo authors had the foresight to control these via options option foo build shared build libfoo shared library on for example which means i can set them via the cmake command line. This macro presents an option to the user only if a set of other conditions are true. A few years ago i wrote some cmake code to set a default if one was not specified and also populate a list of available options so that it would show up in cmake gui as a drop down list. This section is structured as follows.

But when i make ccmake s project b build the options appears in default. From this drop down list select the desired toolchain. But i need to change it to be x r5 o. See the cmake language 7 variables documentation for the scopes and interaction of normal variables and cache entries.

But i would like to make that off by default and overridable via the command line. Eprosima fast dds provides numerous cmake options for changing the behavior and configuration of fast dds these options allow the user to enable disable certain fast dds settings by defining these options to on off at the cmake execution. Signatures of this command that specify a value.