MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0014526CMakeCMakepublic2013-10-31 03:202016-06-10 14:31
ReporterDavid Rogers 
Assigned ToGregor Jasny 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
PlatformAppleOSOS XOS Version10.9
Product VersionCMake 2.8.12 
Target VersionFixed in Version 
Summary0014526: Xcode generator sets incorrect release optimization flag
DescriptionXcode projects generated have -O0 set for the release configuration. I think it used to be -O3 but I could be wrong on that. -O0 is certainly incorrect though.
Steps To ReproduceCreate any CMake project, I used the one here: http://www.cmake.org/cmake/help/cmake_tutorial.html [^]

Create an Xcode project from it by running cmake -G Xcode .

Open the project, look at the incorrect Release configuration optimization flag.
Additional InformationI do not know if 2.8.12 is the first version that is affected by this bug. I have not tried 2.8.11 to double check.
TagsNo tags attached.
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Issue History
Date ModifiedUsernameFieldChange
2013-10-31 03:20David RogersNew Issue
2014-03-24 08:43Jan RüeggNote Added: 0035481
2015-12-30 08:38Gregor JasnyNote Added: 0040031
2015-12-30 08:38Gregor JasnyAssigned To => Gregor Jasny
2015-12-30 08:38Gregor JasnyStatusnew => assigned
2016-06-10 14:29Kitware RobotNote Added: 0042407
2016-06-10 14:29Kitware RobotStatusassigned => resolved
2016-06-10 14:29Kitware RobotResolutionopen => moved
2016-06-10 14:31Kitware RobotStatusresolved => closed

Notes
(0035481)
Jan Rüegg   
2014-03-24 08:43   
I can confirm this, also adding it to the cxx configuration variable doesn't help. Always set to -O0
(0040031)
Gregor Jasny   
2015-12-30 08:38   
with latest master cmake I get the following:

$ xcodebuild -showBuildSettings -target foo -configuration Release |grep OPTI 
    GCC_OPTIMIZATION_LEVEL = 3
    OPTIMIZATION_LEVEL = 0


Xcode itself shows "fastest" for optimization level, so I guess with Xcode 7 the GCC_ variant is used.
Does this bug still occur to you? If yes what Xcode and CMake version do you use?
(0042407)
Kitware Robot   
2016-06-10 14:29   
Resolving issue as `moved`.

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