View Issue Details [ Jump to Notes ]

[ Print ]

Project

Category

View Status

Date Submitted

Last Update

0015934

CMake

public

2016-01-26 02:58

2016-06-10 14:31

Reporter

Guy Harris

Assigned To

Kitware Robot

Priority

normal

Severity

minor

Reproducibility

N/A

Status

closed

Resolution

moved

Platform

all

OS Version

all

Product Version

CMake 2.8.12.2

Target Version

Fixed in Version

Summary

0015934: There's no way to test whether a given *linker* flag works

Description

There are macros to test whether a given *compiler* flag works, such as CHECK_C_COMPILER_FLAG and CHECK_CXX_COMPILER_FLAG.

There is no macro to test whether a given *linker* flag works.

Furthermore, there does not appear to be a way to do a CHECK_C_SOURCE_RUNS with a given *linker* flag, so there does not appear to be a way to *write* a macro to test whether a given linker flag works. Setting CMAKE_REQUIRED_FLAGS does *not* affect what flags are used with, for example, the Xcode generator; it works with the Unix makefile generator, but that's not sufficient to support multiple build systems.

Tags

No tags attached.

Attached Files

Relationships

related to

0014066

closed

Brad King

Provided CMAKE_*_LINKER_FLAGS ignored during configuration step

Notes
(0040327) Brad King (manager) 2016-01-26 10:09	There are some ways to get linker flags through try_compile. Since CMake 2.8.11 the try_compile command supports a LINK_LIBRARIES option that is implemented by calling target_link_libraries in the generated project. This may be able to pass linker flags too. Since CMake 3.2 the try_run command supports the option too. Since CMake 3.2 the CMAKE_EXE_LINKER_FLAGS will be passed. See 0014066:0037379 and policy CMP0056: https://cmake.org/cmake/help/v3.4/policy/CMP0056.html [^] Still, there is no first-class option giving link flags to try_compile.

(0042921) Kitware Robot (administrator) 2016-06-10 14:29	Resolving issue as `moved`. This issue tracker is no longer used. Further discussion of this issue may take place in the current CMake Issues page linked in the banner at the top of this page.

Issue History
Date Modified	Username	Field	Change
2016-01-26 02:58	Guy Harris	New Issue
2016-01-26 10:02	Brad King	Relationship added	related to 0014066
2016-01-26 10:09	Brad King	Note Added: 0040327
2016-06-10 14:29	Kitware Robot	Note Added: 0042921
2016-06-10 14:29	Kitware Robot	Status	new => resolved
2016-06-10 14:29	Kitware Robot	Resolution	open => moved
2016-06-10 14:29	Kitware Robot	Assigned To	=> Kitware Robot
2016-06-10 14:31	Kitware Robot	Status	resolved => closed