MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0015783CMakeCMakepublic2015-10-12 10:322016-06-10 14:31
ReporterDaniele E. Domenichelli 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product VersionCMake 3.4 
Target VersionFixed in Version 
Summary0015783: ALIASED_TARGET property is always set
DescriptionThe ALIASED_TARGET property is always set even if no alias is associated to a target.
Steps To ReproduceUsing this CMakeLists.txt

---
cmake_minimum_required(VERSION 3.2)
project(test C)

file(WRITE ${CMAKE_BINARY_DIR}/test.c "int main(int argc, char *argv[]) { return 0; }\n")
add_executable(test_exe ${CMAKE_BINARY_DIR}/test.c)

get_property(_aliased_target_set TARGET test_exe PROPERTY ALIASED_TARGET SET)
if(_aliased_target_set)
  message(STATUS "ALIASED_TARGET is set for target test_exe")
  get_property(_aliased_target_value TARGET test_exe PROPERTY ALIASED_TARGET)
  message(STATUS " ALIASED_TARGET = \"${_aliased_target_value}\"")
else()
  message(STATUS "ALIASED_TARGET is NOT set for target test_exe")
endif()

include (CMakePrintHelpers)
cmake_print_properties(TARGETS test_exe PROPERTIES ALIASED_TARGET)


add_executable(Test::test_exe ALIAS test_exe)

get_property(_aliased_target_set TARGET Test::test_exe PROPERTY ALIASED_TARGET SET)
if(_aliased_target_set)
  message(STATUS "ALIASED_TARGET is set for target Test::test_exe")
  get_property(_aliased_target_value TARGET Test::test_exe PROPERTY ALIASED_TARGET)
  message(STATUS " ALIASED_TARGET = \"${_aliased_target_value}\"")
else()
  message(STATUS "ALIASED_TARGET is NOT set for target Test::test_exe")
endif()

include (CMakePrintHelpers)
cmake_print_properties(TARGETS Test::test_exe PROPERTIES ALIASED_TARGET CICCIO)
---




The actual output is

-- ALIASED_TARGET is set for target test_exe
-- ALIASED_TARGET = "_aliased_target_value-NOTFOUND"
--
 Properties for TARGET test_exe:
   test_exe.ALIASED_TARGET = "property-NOTFOUND"

-- ALIASED_TARGET is set for target Test::test_exe
-- ALIASED_TARGET = "test_exe"
--
 Properties for TARGET Test::test_exe:
   Test::test_exe.ALIASED_TARGET = "test_exe"



The expected output is

-- ALIASED_TARGET is NOT set for target test_exe
--
 Properties for TARGET test_exe:
   test_exe.ALIASED_TARGET = <NOTFOUND>

-- ALIASED_TARGET is set for target Test::test_exe
-- ALIASED_TARGET = "test_exe"
--
 Properties for TARGET Test::test_exe:
   Test::test_exe.ALIASED_TARGET = "test_exe"

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Issue History
Date ModifiedUsernameFieldChange
2015-10-12 10:32Daniele E. DomenichelliNew Issue
2015-10-12 10:36Brad KingNote Added: 0039573
2015-10-12 12:58Daniele E. DomenichelliNote Added: 0039577
2016-06-10 14:29Kitware RobotNote Added: 0042854
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
(0039573)
Brad King   
2015-10-12 10:36   
Is this new to 3.4? Would you please bisect?
(0039577)
Daniele E. Domenichelli   
2015-10-12 12:58   
Bisected up to v2.8.12, apparently the problem has always been there, but before the commit cd3d0b613e887eb64a7e5cb043f047ba02bdc58a get_property(... ALIASED_TARGET ... SET) was failing printing "get_property unknown error". After that commit the property is always set, even when it should not be.
(0042854)
Kitware Robot   
2016-06-10 14:29   
Resolving issue as `moved`.

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