The xforms-0.88-4 rpm on the LyX ftp site works for me, but libstdc++-libc6.1-2.so.3 was still missing. On rpmfind.net I found a package which contains this version:
ftp://rpmfind.net/linux/contrib/libc6/i386/libstdc++-2.95.1_2.10.0-3.i386.rpm Unfortunately on RH7.2 this conflicts with other packages (libstdc++-2.96-108.7.2 and compat-libstdc++-6.2-2.9.0.16). So the solution was to manually copy the libstdc++-3-libc6.1-2-2.10.0.so file from the rpm package to /usr/lib, and run ldconfig. I hope this helps. denespal
