我尝试使用自制软件安装mysql，但是当我运行brew install mysql时，它说：
The Homebrew GCC was not installed.
You must:
brew install gcc
这是我运行brew install gcc时得到的结果
==> Installing dependencies for gcc: gmp, mpfr, libmpc, pkg-config, isl,
==> Installing gcc dependency: gmp
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/gmp-6.0.0a.
Already downloaded: /Library/Caches/Homebrew/gmp-6.0.0a.lion.bottle.tar.gz
==> Pouring gmp-6.0.0a.lion.bottle.tar.gz
sh: -L: invalid option
Usage: sh [GNU long option] [option] ...
sh [GNU long option] [option] script-file ...
GNU long options:
--debug
--debugger
--dump-po-strings
--dump-strings
--help
--init-file
--login
--noediting
--noprofile
--norc
--posix
--protected
--rcfile
--restricted
--verbose
--version
--wordexp
Shell options:
-irsD or -c command or -O shopt_option (invocation only)
-abefhkmnptuvxBCHP or -o option
Error: Failure while executing: -L /usr/local/Cellar/gmp/6.0.0a/lib/libgmpxx.4.dylib
Warning: Bottle installation failed: building from source.
Error: The Homebrew GCC was not installed.
You must:
brew install gcc