安装 ruby 版本 2.2.5 时出错

Error while installing ruby version 2.2.5

当我执行 rvm install ruby-2.2.5 时出现错误。知道为什么吗?

M1620661:Wellness_service us044466$ rvm install ruby-2.2.5
ruby-2.2.5 - #removing src/ruby-2.2.5..
Searching for binary rubies, this might take some time.
Found remote file https://rvm_io.global.ssl.fastly.net/binaries/osx/10.11/x86_64/ruby-2.2.5.tar.bz2
Checking requirements for osx.
Certificates in '/usr/local/etc/openssl/cert.pem' are already up to date.
Requirements installation successful.
ruby-2.2.5 - #configure
ruby-2.2.5 - #download
ruby-2.2.5 - #validate archive
ruby-2.2.5 - #extract
ruby-2.2.5 - #validate binary
Libraries missing for ruby-2.2.5: /usr/local/opt/gmp/lib/libgmp.10.dylib. Refer to your system manual for installing libraries
Mounting remote ruby failed with status 10, trying to compile.
Checking requirements for osx.
Certificates in '/usr/local/etc/openssl/cert.pem' are already up to date.
Requirements installation successful.
Warning: found user selected compiler '/usr/local/opt/apple-gcc42/bin/gcc-4.2', this will suppress RVM auto detection mechanisms.
Installing Ruby from source to: /Users/us044466/.rvm/rubies/ruby-2.2.5, this may take a while depending on your cpu(s)...
ruby-2.2.5 - #downloading ruby-2.2.5, this may take a while depending on your connection...
ruby-2.2.5 - #extracting ruby-2.2.5 to /Users/us044466/.rvm/src/ruby-2.2.5....
ruby-2.2.5 - #configuring......
Error running './configure --prefix=/Users/us044466/.rvm/rubies/ruby-2.2.5 --with-opt-dir=/usr/local/opt/libyaml:/usr/local/opt/readline:/usr/local/opt/libksba:/usr/local/opt/openssl:/usr/local/opt/libyaml:/usr/local/opt/readline:/usr/local/opt/libksba:/usr/local/opt/openssl --disable-install-doc --enable-shared',
showing last 15 lines of /Users/us044466/.rvm/log/1478196378_ruby-2.2.5/configure.log
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking for cd using physical directory... cd -P
checking whether CFLAGS is valid... no
configure: error: something wrong with CFLAGS="-g -O2 "
There has been an error while running configure. Halting the installation.

你在这里没有给我们太多信息。你 OS 是什么 运行?哪个版本?
根据 this issue on the Ruby GitHub page,您可以通过使用 GCC 安装来解决此问题:CC=/usr/bin/gcc rvm install ruby-2.2.5,假设您已将 GCC 安装到 /usr/bin/gcc

这个很有魅力

rvm install 2.2.5 --with-gcc=clang