MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0012496CMakeCMakepublic2011-10-06 03:502016-06-10 14:31
ReporterMarkus Klinik 
Assigned ToAlex Neundorf 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product VersionCMake 2.8.5 
Target VersionFixed in Version 
Summary0012496: Compiler tests ignore variables from command line when using toolchain file
DescriptionHave a toolchain file that sets cache variables. On the
command line, override the default values using the -D option. The overrides
are ignored by the configure-time compiler tests, but the overrides go to the
generated makefiles.

Example:

--- toolchain.cmake
set(ANDROID_NDK_ROOT "/home/nosuchuser/android-ndk-r6b" CACHE PATH "Android NDK root")
message("ANDROID_NDK_ROOT is: " ${ANDROID_NDK_ROOT})
--- end of toolchain.cmake

--- CMakeLists.txt
project(foobar)
--- end of CMakeLists.txt

run cmake with the following command:

$ cmake -DANDROID_NDK_ROOT=/home/mkl/android-ndk -DCMAKE_TOOLCHAIN_FILE=../toolchain.cmake ..

and observe that ANDROID_NDK_ROOT takes on the default value for the compiler tests:

ANDROID_NDK_ROOT is: /home/mkl/android-ndk
ANDROID_NDK_ROOT is: /home/mkl/android-ndk
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
ANDROID_NDK_ROOT is: /home/nosuchuser/android-ndk-r6b
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
ANDROID_NDK_ROOT is: /home/nosuchuser/android-ndk-r6b
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
ANDROID_NDK_ROOT is: /home/nosuchuser/android-ndk-r6b
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
ANDROID_NDK_ROOT is: /home/nosuchuser/android-ndk-r6b
-- Detecting CXX compiler ABI info - done
-- Configuring done
-- Generating done
Steps To Reproduce
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Issue History
Date ModifiedUsernameFieldChange
2011-10-06 03:50Markus KlinikNew Issue
2011-10-06 03:50Markus KlinikNote Added: 0027538
2011-10-06 11:33Alex NeundorfAssigned To => Alex Neundorf
2011-10-06 11:33Alex NeundorfStatusnew => assigned
2012-08-13 14:32Alex NeundorfStatusassigned => backlog
2015-12-06 15:27Trygve LaugstølNote Added: 0039956
2016-06-10 14:28Kitware RobotNote Added: 0041909
2016-06-10 14:28Kitware RobotStatusbacklog => resolved
2016-06-10 14:28Kitware RobotResolutionopen => moved
2016-06-10 14:31Kitware RobotStatusresolved => closed

Notes
(0027538)
Markus Klinik   
2011-10-06 03:50   
see also http://thread.gmane.org/gmane.comp.programming.tools.cmake.user/33364/focus=34200 [^]
(0039956)
Trygve Laugstøl   
2015-12-06 15:27   
This is a problem for me too. Are there any available workardounds?
(0041909)
Kitware Robot   
2016-06-10 14:28   
Resolving issue as `moved`.

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