CMP0130

Added in version 3.24.

while() diagnoses condition evaluation errors.

CMake 3.23 and below accidentally tolerated errors encountered while evaluating the condition passed to the while() command (but not the if() command). For example, the code

set(paren "(")
while(${paren})
endwhile()

creates an unbalanced parenthesis during condition evaluation.

CMake 3.24 and above prefer to diagnose such errors. This policy provides compatibility for projects that have not been updated to fix their condition errors.

The OLD behavior for this policy is to ignore errors in while() conditions. The NEW behavior for this policy is to diagnose errors in while() conditions.

This policy was introduced in CMake version 3.24. It may be set by cmake_policy() or cmake_minimum_required(). If it is not set, CMake warns, and uses OLD behavior.

Note

The OLD behavior of a policy is deprecated by definition and may be removed in a future version of CMake.