Re: NASM-3.00 causes build failures, recommend downgrading

On 10/5/25 17:34, Zeckma wrote:
 > Hello everyone.
 >
 > We have a problem with NASM-3.00. It is currently in the development
 > books of BLFS. 3.00 made changes that affects packages like dav1d and
 > libaom. I haven't tried packages besides those, but the scope may be
 > bigger, I don't know quite yet.
 >
 > For dav1d, the assembly files have operands in an order that NASM-3.00
 > forced to be the other way according to the specification. This causes
 > dav1d to fail to build from source.
 >
 > In libaom's case, it fails to even configure via CMake as the NASM is
 > unsupported. This is because the build system uses NASM's help output,
 > in which it was changed. It expects all the supported options and build
 > targets to be shown with the current options -hf. The problem is now
 > the options it wants to see plus the build targets have been split up.
 > Now, it would want -h0 plus -hf, which cannot be ran in the same
 > command.
 >
 > Lack of energy and time, I see it as a good idea to simply downgrade
 > NASM to 2.x.x until these issues in other packages have been fixed.
 >
 > Apologies to anyone who installed NASM-3.00 as a result of it being in
 > the development books. I heavily recommend to downgrade to NASM-2.16.03
 > to prevent build failures.

NASM has been updated to 3.01. This updates fixes builds +
configurations of multiple packages and is now in BLFS+GLFS. It is now
safe to update to NASM 3 via 3.01. If anyone has issues with NASM-3.01,
please let us know.

- Zeckma

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