MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0016078CMakeCMakepublic2016-04-24 04:282016-06-10 14:21
ReporterThomas Nilsson 
Assigned ToBrad King 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionfixed 
PlatformPCOSWindowsOS Version10
Product VersionCMake 3.3.2 
Target VersionCMake 3.6Fixed in VersionCMake 3.6 
Summary0016078: CMake on Cygwin with clang not creating expected dll.a
DescriptionI'm building a shared library and an application using that lib on Cygwin. With GCC CMake creates a .dll.a to use when linking. Switching to clang I get

[ 34%] Built target xyz_shared
make[2]: *** No rule to make target 'src/libxyz_shared.dll.a', needed by 'xyz.exe'. Stop.
Steps To ReproduceOn Cygwin, use the attached CMakeLists.txt and see it produce 'cygxyz_shared.dll' and 'libxyz_shared.dll.a'.

Clear the build directory and do

  $ CC=clang cmake ..; make

and it will not create 'libxyz_shared.dll.a'.
Additional InformationAs described in this Stackoverflow question (http://stackoverflow.com/questions/36294199 [^]) the culprit seems to be the lack of the flags '-Wl,--enable-auto-import' when using clang.
TagsClang, cygwin
Relationships
Attached Filestxt CMakeLists.txt (132) 2016-04-24 04:28
https://public.kitware.com/Bug/file/5679/CMakeLists.txt
Issue History
Date ModifiedUsernameFieldChange
2016-04-24 04:28Thomas NilssonNew Issue
2016-04-24 04:28Thomas NilssonFile Added: CMakeLists.txt
2016-04-24 16:56Thomas NilssonTag Attached: Clang
2016-04-24 16:56Thomas NilssonTag Attached: cygwin
2016-04-25 09:03Brad KingNote Added: 0040925
2016-04-25 09:03Brad KingAssigned To => Brad King
2016-04-25 09:03Brad KingStatusnew => resolved
2016-04-25 09:03Brad KingResolutionopen => fixed
2016-04-25 09:03Brad KingFixed in Version => CMake 3.6
2016-04-25 09:03Brad KingTarget Version => CMake 3.6
2016-06-10 14:21Kitware RobotNote Added: 0041184
2016-06-10 14:21Kitware RobotStatusresolved => closed

Notes
(0040925)
Brad King   
2016-04-25 09:03   
I think this was fixed in post-3.5 development by this commit:

 Cygwin: Add support for Clang compiler
 https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=517cef8c [^]
(0041184)
Kitware Robot   
2016-06-10 14:21   
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