Tilp: Coredump on unsupported library versions about tilp_and_gfm HOT 4 OPEN

I'm happy to submit a PR with either of the above patches (or another) if you would like

from tilp_and_gfm.

Thanks for the report. It's interesting that this one doesn't get reported more often... do you have multiple versions of libti* in your LD_LIBRARY_PATH ?

Running TILP with outdated library dependencies is a fatal error, in that a subset of the functionality will be unavailable. Since there's a need to fiddle with the library version checking code anyway... I think that the right way to fix this is to use a proper version comparison routine (which strcmp() isn't: 1.1.10 < 1.1.9), and report all outdated libraries in one go, before exiting the program cleanly.

from tilp_and_gfm.

does C / GTK supply a version checking function? I tried a google search and couldn't find anything that looked promising?

from tilp_and_gfm.

There had to be a version comparison routine in package managers or below sort -V. A little digging around returns https://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/strverscmp.c and https://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/filevercmp.c , both of which are generic... but eww, all the more portability concerns mandate integrating a local copy of these LGPL'ed functions.

For simple version numbers made of 3 numeric elements, sscanf() would work... that is, if it handled numeric overflow correctly. I was reminded by comments on StackOverflow that it doesn't...

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