我目前在我的系统上安装了 PHP 5.6.23。但是，我正在尝试在我的系统上安装 PHP7（macOS Sierra Beta），我正在尝试使用brew install homebrew/php/php70.
但是，我收到以下错误：
$ brew install php70
Warning: You are using OS X 10.12.
We do not provide support for this pre-release version.
You may encounter build failures or other breakages.
Please create pull-requests instead of filing issues.
==> Installing php70 from homebrew/php
==> Downloading https://php.net/get/php-7.0.9.tar.bz2/from/this/mirror
Already downloaded: /Users/Removed/Library/Caches/Homebrew/php70-7.0.9
==> ./configure --prefix=/usr/local/Cellar/php70/7.0.9 --localstatedir=/usr/local/var --sy
Last 15 lines from /Users/Removed/Library/Logs/Homebrew/php70/01.configure:
checking for pthreads_lib...
Configuring SAPI modules
checking for Apache 2.0 handler-module support via DSO through APXS...
Sorry, I cannot run apxs. Possible reasons follow:
1. Perl is not installed
2. apxs was not found. Try to pass the path using --with-apxs2=/path/to/apxs
3. Apache was not built using --enable-so (the apxs usage page is displayed)
The output of /usr/sbin/apxs follows:
apxs:Error: /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.12.xctoolchain/usr/local/bin/apr-1-config not found!.
configure: error: Aborting
READ THIS: https://git.io/brew-troubleshooting
If reporting this issue please do so at (not Homebrew/brew):
https://github.com/Homebrew/homebrew-php/issues
These open issues may also help:
php70-yaf https://github.com/Homebrew/homebrew-php/issues/3328
Install PHP70: Incompatible library version https://github.com/Homebrew/homebrew-php/issues/3444
No solr available for php70 yet https://github.com/Homebrew/homebrew-php/issues/3454
brew install php70-redis https://github.com/Homebrew/homebrew-php/issues/2762
php70-imagick has warnings https://github.com/Homebrew/homebrew-php/issues/2766
Add head formula for php70-uploadprogress https://github.com/Homebrew/homebrew-php/pull/3178
"brew upgrade" fails: php56 conflicting with php70 when upgrading phpmyadmin https://github.com/Homebrew/homebrew-php/issues/2945
10.6.8 "brew install php70" failed with Error 139 https://github.com/Homebrew/homebrew-php/issues/2708
Adds a new php70-gearman formula that updates php56-gearman https://github.com/Homebrew/homebrew-php/pull/3120
Why does wp-cli formula try to install php56 if php70 is already there? https://github.com/Homebrew/homebrew-php/issues/3179
Warning: You are using OS X 10.12.
We do not provide support for this pre-release version.
You may encounter build failures or other breakages.
Please create pull-requests instead of filing issues.
结果brew doctor是这样的：
$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!
Warning: You are using OS X 10.12.
We do not provide support for this pre-release version.
You may encounter build failures or other breakages.
Please create pull-requests instead of filing issues.
任何指导/帮助将不胜感激！