GlibC compatibility problem

I've upgrade my Linux distro.......

.......... But my older applications (mostly propriatery) won't run

The error message is something like this:

symbol errno, version GLIBC_2.0 not defined in file libc.so.6 with link time reference

Then I do goooogling..... The problem is my new Linux using newer version of GlibC

........ In 3 days, found the solution:

Type this before running your old program:

export LD_ASSUME_KERNEL=2.6

Hope this help