XfontDump

This program is devoted to Cyril Slobin for his excellent works in area of russification.

I've sometimes encountered problems of misterious X program crashes due to unability to find proper X fonts. So, I've written small debugging tool to debug just this problem

Compile xfontdump.c file with command

gcc -shared -o xfontdump.so xfontdump.c

LD_PRELOAD=/path/to/xfontdump.so program

xfontdump would intercept all XLoadQueryFont and XLoadFont calls and report to stderr exact font specifications program have requested.

If you have problems with some other shared library calls, you can easily extend this apporach. Of course, you can use ltrace, but you'll have hard time analyzing it's output.