[Insight-users] Problem while building FLTK 1.1.6 :: JPEG and unresolved external symbols

[Luis Ibanez]

Hi Jenny,

FLTK 1.1.6 has already a CMakeLists.txt file.

This means that you can configure it with CMake
and follow the same process that you use for
configuring ITK or VTK.

Namely, you just need to select a binary directory
and to point to your FLTK source directory.

What happens with jpeg is that FLTK gives you the
option of building JPEG libraries that are distributed
along with FLTK, or to build with your system JPEG
libraries.

In your case, it seems that you build along with the
system JPEG libraries but their version does not
correspond to what FLTK is expecting.

You may want to try by using the JPEG libraries that
are distributed along with FLTK.


   Regards,


      Luis



-------------------------------------
yaolu at engineering.uiowa.edu wrote:
> Hi, LUis,
> 
> I'm new here. I read a few of your message on line and they are so helpful. I
> met a problem now while I am building the FLTK. I don't know how to fix it.
> Could you plese give me some hint? Thank you very much!
> 
> I downloaded FLTK 1.6 and follow the instruction to build it, but I got follow
> error, 68 files, only 67 built 1 failed.
> 
> error message is like:
> 
> help error LNK2019: unresolved external symbol _jpeg_finish_decompress
> referenced in function "public: __thiscall Fl_JPEG_Image::Fl_JPEG_Image(char
> const *)" (??0Fl_JPEG_Image@@QAE at PBD@Z)
> 
> help error LNK2019: unresolved external symbol _jpeg_read_scanlines referenced
> in function "public: __thiscall Fl_JPEG_Image::Fl_JPEG_Image(char const *)"
> (??0Fl_JPEG_Image@@QAE at PBD@Z)
> 
> Best wishes,
> 
> Jenny
> 
> 
> 
>