boost @1.71.0 does not build: clang: error: unknown argument: '-fcoalesce-templates'

[i0ntempest]

It seems that boost can't choose the right compiler or can't get the compiler version right, so it ends up adding an arg that the used compiler doesn't recognize. I added compiler.blacklist clang and now it builds, but I'm not sure it's the best thing to do so I'm opening a ticket. Build log attached.

[i0ntempest]

This might be related: ​https://github.com/zcash/zcash/issues/4333

[michaelld (Michael Dickens)]

I'm betting you're correct. We have a PR for this ( ​https://github.com/macports/macports-ports/pull/6726 ) ... but just for older OSX right now ... I did raise the question of whether it should just be applied globally & this issue seems to indicate "maybe so" ...

[i0ntempest]

Yeah, this should be applied until the upstream fix is released... or maybe we can just use that fix in the patch file? One more thing, can you pls make boost to build using python38 by default? So that dependent ports can all default to python38.

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In d6307dd3c34709aeed8b24af5fbcce6b23118670/macports-ports (master):

boost-numpy: fix build for Xcode >= 10.0

See ​https://github.com/boostorg/build/issues/440
Fixes #60287

[michaelld (Michael Dickens)]

Replying to i0ntempest:

Yeah, this should be applied until the upstream fix is released... or maybe we can just use that fix in the patch file?

Patch is merged. When we update to Boost 1.73, we'll remove the patch since it will be integrated.

One more thing, can you pls make boost to build using python38 by default? So that dependent ports can all default to python38.

Looks like Py38 is the current default in the Python PG ... so, yes, I'll update Boost to match. Thanks for pointing that out!