fftw3 neon support config fixups for armv8

[Wookey]

fftw3 (FFT library) has SIMD support for various architectures. This was naively enabled in 3.3.3-6 debian package in a way that didn't work as it assumed that -mfpu=neon was neeed as a compiler option and that __ARM_NEON__ would be defined if neon available. Neither of these are true for armv8/aarch64-linux-gnu-gcc so different configurey handling is needed.

Patch attached.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "fftw3_3.3.3-7-arm64-neon-support-config.patch" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

[Martin Pitt (pitti)]

Sponsoring question: In the Debian bug you said:

> However, applying this doesn't in fact get a working build as it exposes a compiler ICE in the gcc4.8 we are currently using in unstable. But that should get fixed soon.

Does that apply to current trusty as well?

[Sebastien Bacher (seb128)]

there is a pending question, unsubscribing ubuntu-sponsors until that gets a reply, please subscribe the team back then