On Wed, 25 Oct 2023, Ellen Johnson via Tiff wrote:
Hi libtiff developers! We just upgraded to libtiff v4.6.0 and want to build it with our recently added libjpeg-turbo v3.0.0.
Unfortunately we had to symbol version libjpeg-turbo on Linux (on top of its existing symbol versions) to avoid symbol collisions with other libjpeg versions. As part of this work, we slightly modified the libjpeg-turbo shared library name on Linux, Mac, and Windows - for example on Linux, instead of the shared library libjpeg.so.62.4.0, we named it libmwjpeg.so.62.4.0.
The need to do this is most unfortunate. I was wondering about this issue.
In our libtiff makefile, we use configure on Linux and Mac and CMake on Windows. I think I figured out the CMake option to link libtiff to our libjpeg-turbo DLL, but I'm not sure how to modify the libtiff configure scripts to get Linux and Mac to do the same. I see in the libtiff main folder there's both a configure and configure.ac file, and both have commands that link to libjpeg - "-ljpeg". I tried changing this in both files to "-lmwjpeg" instead but that didn't work. Could you please let me know which file or files I need to modify, and whether I need to manually run autoconf or similar tools after I make the change?
You can run the 'autogen.sh' script at the top of the libtiff source tree. Even better than this, is add the --enable-maintainer-mode option when running the configure script since then the build will take care of itself after you edit a file.
You will need to make sure that Autotools (Autoconf, Automake, and libtool) are installed on your system.
Bob -- Bob Friesenhahn [email protected], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt _______________________________________________ Tiff mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/tiff
