zeromq 4.3.0

[igas]

Created with brew bump-formula-pr.

[fxcoudert]

This is hit by the infamous:

In file included from src/v2_decoder.cpp:33:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cmath:313:9: error: no member named 'signbit' in the global namespace

on High Sierra. Trying to fix it, and removing options at the same time (#31510).

[scpeters]

@BrewTestBot test this please

[scpeters]

I can reproduce the signbit build error on high sierra with the current version of the formula (4.2.5)

[igas]

@BrewTestBot test this please

[emielwiedijk]

It seems to be a problem with the options added by superenv. If the build system calls clang directly by adding ENV["CXX"] = "/usr/bin/clang++", the build completes fine.

Edit: Commit Homebrew/brew@eea18a5 broke the build. It works with that commit reverted.

[emielwiedijk]

The workaround works with ENV.delete("HOMEBREW_SDKROOT").

[igas]

Thank you @aimileus!

[bluca]

@igas hi, could you please update the formula to the newly released 4.3.1 as soon as you have time? Unfortunately I do not have OSX to do it myself. The new version fixes a remote execution vulnerability: https://github.com/zeromq/libzmq/releases/tag/v4.3.1
Thanks!

[emielwiedijk]

I opened a new PR at #35940