lenny/arm - rtorrent configure fails with undefined reference to __sync_* about rtorrent

[rakshasa]

Compiler version isn't supported.

[Surrano]

Hello,
Can you please elaborate? Where is it written that 4.2.4 is not supported, while 4.2.1+ is required?
Or is it arm that is completely not supported?

Please provide a link to a document on supported architectures.
Please provide a link to a document on supported compiler versions.

Thanks!

[rakshasa]

Compiler support for _sync* is required, that's really all there's to say about that. GCC arm does not support them natively.

[Surrano]

Okay, I accept this fact, and assume it is documented somewhere, since it is a "stable" release.
But where is "somewhere"?

[tigris]

Agree with @Surrano. Would love a list of supported arch and gcc versions. Just wasted 2 days trying to compile for -march=armv5t with g++ version 4.2.3 and get same error as above. Annoying since compiling libtorrent takes about an hour on these super old NAS boxes, so trying again from scratch with different compile flags etc is a long time just to test a new flag.