| CMP0028 |
| ------- |
| |
| Double colon in target name means ALIAS or IMPORTED target. |
| |
| CMake 2.8.12 and lower allowed the use of targets and files with double |
| colons in target_link_libraries, with some buildsystem generators. |
| |
| The use of double-colons is a common pattern used to namespace IMPORTED |
| targets and ALIAS targets. When computing the link dependencies of a target, |
| the name of each dependency could either be a target, or a file on disk. |
| Previously, if a target was not found with a matching name, the name was |
| considered to refer to a file on disk. This can lead to confusing error |
| messages if there is a typo in what should be a target name. |
| |
| The OLD behavior for this policy is to search for targets, then files on disk, |
| even if the search term contains double-colons. The NEW behavior for this |
| policy is to issue a FATAL_ERROR if a link dependency contains |
| double-colons but is not an IMPORTED target or an ALIAS target. |
| |
| This policy was introduced in CMake version 3.0. CMake version |
| |release| warns when the policy is not set and uses OLD behavior. Use |
| the cmake_policy command to set it to OLD or NEW explicitly. |
| |
| .. include:: DEPRECATED.txt |
