MantisBT - CMake

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Project

Category

View Status

Date Submitted

Last Update

0014668

CMake

Modules

public

2013-12-23 11:47

2014-06-02 08:37

Reporter

sezero

Assigned To

Brad King

Priority

normal

Severity

minor

Reproducibility

always

Status

closed

Resolution

duplicate

Platform

OS Version

Product Version

CMake 2.8.12

Target Version

Fixed in Version

Summary

0014668: Modules/Platform/Darwin.cmake failure with cross toolchain file

Description

Using a toolchain file to test a linux-to-darwin cross-compile, I get
the following:

CMake Error at /usr/share/cmake/Modules/Platform/Darwin.cmake:344 (list):
list sub-command REMOVE_DUPLICATES requires list to be present.
Call Stack (most recent call first):
/usr/share/cmake/Modules/CMakeSystemSpecificInformation.cmake:36 (include)

Steps To Reproduce

cmake -DCMAKE_TOOLCHAIN_FILE=/path/to/Toolchain-OSX-ppc.cmake

FWIW, the toolchain file looks like this:

SET(CMAKE_SYSTEM_NAME Darwin)

SET(CMAKE_C_COMPILER /opt/cross_osx-ppc/bin/powerpc-apple-darwin9-gcc)
SET(CMAKE_CXX_COMPILER /opt/cross_osx-ppc/bin/powerpc-apple-darwin9-g++)

# where is the target environment
SET(CMAKE_FIND_ROOT_PATH /opt/cross_osx-ppc)

# adjust the default behaviour of the FIND_XXX() commands:
# search headers and libraries in the target environment, search
# programs in the host environment
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

Additional Information

LIST(REMOVE_DUPLICATES ...) seems sensitive to unset (non-existent)
variables, so applying the following patch makes it work for me:

--- Darwin.cmake~
+++ Darwin.cmake
@@ -341,7 +341,9 @@
     list(APPEND _apps_paths "${_apps}")
   endif()
endforeach()
-list(REMOVE_DUPLICATES _apps_paths)
+if(_apps_paths)
+ list(REMOVE_DUPLICATES _apps_paths)
+endif()
set(CMAKE_SYSTEM_APPBUNDLE_PATH
   ${_apps_paths})
unset(_apps_paths)