Same code, working with R.app Mac GUI 1.61 (R 3.0.1), not with R 3.0.1 from terminal

Hello,

I have a very peculiar problem to share.

I wrote a (rather) large R function that also includes some C code.

When I run it with R.app Mac GUI 1.61 (R 3.0.1), no problem at all.
When I run it from R 3.0.1 from terminal (on the same Mac), I get the
output of the function, and that output is fine, the prompt appears but
when I submit a new command, nothing happens and the processor keeps on
running even though no calculations are necessary.

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