For any new release, can the OS/2 DLLs (of v5.4.5) be linked statically please? Or renamed to a more unique name (not preferred). A DLL file name like JPEG.DLL is quite common, and can cause conflicts. Hence the question. Teh conflicts arte avoidable, but linking styatically is easier by far.
I am not aware of any OS/2 binaries distributed or built by the gnuplot project itself, although I admit close to total ignorance about how OS/2 works. Are you using a binary built for Windows? Perhaps you should send this request to whoever it was that built the binary you are using?
If I remember correctly, the last OS/2 release uploaded by me was 5.4.5: https://sourceforge.net/projects/gnuplot/files/gnuplot/5.4.5/. I used the ancient emx/gcc environment with pre-compiled libraries obtained elsewhere to mimimize the effort. Not sure they were available as static
versions.
Since version 5.5, I switched to klibC based compilers (gcc 9), using the rpm installer.
Unfortunately, I am not sure I will find the time to iron out remaining issues with this
setup anytime soon.