MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0014300CMakeCMakepublic2013-07-18 05:142016-06-10 14:31
Reporterherbrechtsmeier 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
Platformx86_64OSUbuntuOS Version10.04.4
Product VersionCMake-2-8 
Target VersionFixed in Version 
Summary0014300: The _CMAKE_TOOLCHAIN_LOCATION variable doesn't work in combination with CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY.
DescriptionThe _CMAKE_TOOLCHAIN_LOCATION variable is set to the real path (including the system root) in CMakeDetermineCCompiler.cmake module. In the CMakeFindBinUtils.cmake module this path is interpreted as relative path in the find root paths. Additionally it is impossible to pass a path which is outside of the system root or the CMAKE_FIND_ROOT_PATH.

The later is used in the cross build environment OpenEmbedded which only use the compiler from the build system and therefore set CMAKE_FIND_ROOT_PATH_MODE_* to ONLY during native builds.
Steps To Reproduce- Create a toolchain file:
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_C_COMPILER /usr/bin/gcc)
set(CMAKE_CXX_COMPILER /usr/bin/g++)
set(CMAKE_FIND_ROOT_PATH /path/to/system/root)

set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

- Create a CMakeLists.txt
make_minimum_required(VERSION 2.8)
message("${_CMAKE_TOOLCHAIN_LOCATION}")
message("${CMAKE_C_COMPILER}")
message("${CMAKE_AR}")

- Run cmake -DCMAKE_TOOLCHAIN_FILE=toolchain.cmake .

- Output
/usr/bin
/usr/bin/gcc
CMAKE_AR-NOTFOUND
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Issue History
Date ModifiedUsernameFieldChange
2013-07-18 05:14herbrechtsmeierNew Issue
2016-06-10 14:29Kitware RobotNote Added: 0042321
2016-06-10 14:29Kitware RobotStatusnew => resolved
2016-06-10 14:29Kitware RobotResolutionopen => moved
2016-06-10 14:29Kitware RobotAssigned To => Kitware Robot
2016-06-10 14:31Kitware RobotStatusresolved => closed

Notes
(0042321)
Kitware Robot   
2016-06-10 14:29   
Resolving issue as `moved`.

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