Problem building OpenEXR-2.2.1 in Visual Studio 2015 x64

[pssaransiva]

I have successfully compiled and built ilmbase-2.2.1 library in Visual Studio 2015 x64.
But I am having issues in linking the dwaLookups project (both debug & release). The project has the following preprocessor definition

WIN32 _WINDOWS _DEBUG HAVE_CONFIG_H ILM_IMF_TEST_IMAGEDIR="D:/SDK/OpenEXR/openexr-2.2.1/IlmImfTest/" OPENEXR_DLL ILMIMF_EXPORTS CMAKE_INTDIR="Debug"

Runtime library set to Multithreaded Debug DLL (/MDd) and linked the debug version of following libraries
Half.lib, Iex-2_2.lib, IlmThread-2_2.lib

The project has the following linking errors
`
1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) bool __cdecl IlmThread::supportsThreads(void)" (_imp?supportsThreads@IlmThread@@YA_NXZ) referenced in function "int __cdecl cpuCount(void)" (?cpuCount@@yahxz)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl IlmThread::Thread::Thread(void)" (_imp??0Thread@IlmThread@@qeaa@XZ) referenced in function "public: __cdecl `anonymous namespace'::LutHeaderWorker::Runner::Runner(class A0x2e87040a::LutHeaderWorker &,bool)" (??0Runner@LutHeaderWorker@?A0x2e87040a@@qeaa@AEAV12@_N@Z)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __cdecl IlmThread::Thread::~Thread(void)" (_imp??1Thread@IlmThread@@UEAA@XZ) referenced in function "int public: __cdecl anonymous namespace'::LutHeaderWorker::Runner::Runner(class LutHeaderWorker::Runner &,bool)'::`1'::dtor$0" (?dtor$0@?0???0Runner@LutHeaderWorker@?A0x2e87040a@@qeaa@AEAV12@_N@Z@4HA)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl IlmThread::Thread::start(void)" (_imp?start@Thread@IlmThread@@QEAAXXZ) referenced in function "public: __cdecl `anonymous namespace'::LutHeaderWorker::Runner::Runner(class A0x2e87040a::LutHeaderWorker &,bool)" (??0Runner@LutHeaderWorker@?A0x2e87040a@@qeaa@AEAV12@_N@Z)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl IlmThread::Semaphore::Semaphore(unsigned int)" (_imp??0Semaphore@IlmThread@@qeaa@I@Z) referenced in function "public: __cdecl `anonymous namespace'::LutHeaderWorker::Runner::Runner(class A0x2e87040a::LutHeaderWorker &,bool)" (??0Runner@LutHeaderWorker@?A0x2e87040a@@qeaa@AEAV12@_N@Z)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __cdecl IlmThread::Semaphore::~Semaphore(void)" (_imp??1Semaphore@IlmThread@@UEAA@XZ) referenced in function "int public: __cdecl anonymous namespace'::LutHeaderWorker::Runner::Runner(class LutHeaderWorker::Runner &,bool)'::`1'::dtor$1" (?dtor$1@?0???0Runner@LutHeaderWorker@?A0x2e87040a@@qeaa@AEAV12@_N@Z@4HA)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl IlmThread::Semaphore::wait(void)" (_imp?wait@Semaphore@IlmThread@@QEAAXXZ) referenced in function "public: virtual __cdecl `anonymous namespace'::LutHeaderWorker::Runner::~Runner(void)" (??1Runner@LutHeaderWorker@?A0x2e87040a@@UEAA@XZ)

1>dwaLookups.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: void __cdecl IlmThread::Semaphore::post(void)" (_imp?post@Semaphore@IlmThread@@QEAAXXZ) referenced in function "public: virtual void __cdecl anonymous namespace'::LutHeaderWorker::Runner::run(void)" (?run@Runner@LutHeaderWorker@?A0x2e87040a@@UEAAXXZ)
Kindly help me to resolve this issue.

[meshula]

The develop branch as of this commit - 5e06341

has fixes for this issue. If you try it, please delete your existing cmake cache and regenerate before compilation.

[pssaransiva]

I have downloaded the develop branch of the commit 5e06341 and tried.
I am still getting the same issues.

[Overdrivr]

I'm facing the same issue, I can INSTALL the project for Win32 (with Visual Studio 2017) but not x64. I get dwaLookups errors like this one:

Severity	Code	Description	Project	File	Line	Suppression State
Error	LNK2019	unresolved external symbol compress2 referenced in function "private: int __cdecl Imf_2_3::DwaCompressor::compress(char const *,int,class Imath_2_3::Box<class Imath_2_3::Vec2<int> >,char const * &)" (?compress@DwaCompressor@Imf_2_3@@AEAAHPEBDHV?$Box@V?$Vec2@H@Imath_2_3@@@Imath_2_3@@AEAPEBD@Z)	IlmImf	C:\Users\remib\Github\openexr\build\OpenEXR\IlmImf\ImfDwaCompressor.obj	1	

• Build fails with issue above on the master branch, with a Win32 build, which was expected.
• Build succeeds for a Win32 build on develop branch.
• Build fails for a x64 build on develop branch

I have changed all platform-related flags in CMAKE to a x64 build, (and also add CMAKE_GENERATOR_PLATFORM=x64, I wonder why CMAKE does not expose this flag by default), all relevant flags are configured as such:

Is there something wrong with the Cmake config ?

[meshula]

That usually happens if cmake can't see the x64 toolset, for example, if you didn't run "x64 Native Tools Command Prompt for Visual Studio 2017". The best way to invoke cmake is to specify the toolset you want manually using the -G parameter, so you aren't subject to the defaults of the shell you are in.

cmake -G "Visual Studio 15 2017 Win64" etc etc

[kdt3rd]

The cmake setup for OpenEXR has been completely overhauled to use "modern cmake" paradigms. This does require a newer version of cmake, but please report any new issues you may have. Thanks for the report.