MantisBT - CMake

View Issue Details

Project

Category

View Status

Date Submitted

Last Update

0015544

CMake

public

2015-04-29 16:24

2016-06-10 14:31

Reporter

Stephen Kelly

Assigned To

Kitware Robot

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

closed

Resolution

moved

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0015544: Policy to require cmake_minimum_required() before project()

Description

If a project() command is not written in used code, cmake will generate one.
When invoked, it sets up the toolchain.

The cmake_minimum_required() command must appear before the project()
command, so that the AppleClang compiler id may be set correctly, according
to CMP0025.

Policy CMP0000 requires that the cmake_minimum_required() command must be
used. That policy could be set to REQUIRED_ALWAYS in CMake 4.0. However,
there would still be no enforcement of requiring the project() command to
come after that.

http://thread.gmane.org/gmane.comp.programming.tools.cmake.devel/9392 [^]

Additionally, issuing the commands in the wrong order means that use of the CMAKE_MINIMUM_REQUIRED variable in files read via project() is not what is expected.

http://thread.gmane.org/gmane.comp.programming.tools.cmake.devel/13094/focus=13120 [^]

A policy may be added requiring that the project() command be present and come after cmake_minimum_required(), and generating the project() only in OLD behavior.

Steps To Reproduce

Additional Information