D127: 286_long-long-thumb.patch

Please give me short explanation what the thumb mode is and under what
circumstances it is used.

We don't want to introduce a regression, thus some caution is required.

Thanks for asking. ARM Thumb is a separate instruction set within the ARM CPU. The
charachteristics are that each instruction is 16bit (instead of 32bit of a classical RISC
design). The basic idea is that with smaller instruction size, the binaries are smaller, the
"i-cache" magically has more room for them...

Thumb instructions get enabled when -mthumb is passed to the gcc and the preprocessor will
set the the variable we are checking for.

If you need more information, e.g. a link to the place in gcc where this variable is set I'm
happy to provide that.

Fixed but not tested with commit 6daa9db; to be released in 1.4.12.

I also fixed the same thing in libgcrypt master.

1.4.12 has been released.