brew在OS X 10.10上安装gcc49（找不到可用的ISL）_Gcc_Homebrew_Gcc4.9_Isl

brew在OS X 10.10上安装gcc49（找不到可用的ISL）

gcc

brew在OS X 10.10上安装gcc49（找不到可用的ISL）,gcc,homebrew,gcc4.9,isl,Gcc,Homebrew,Gcc4.9,Isl,当我尝试安装gcc49时，收到一个错误 $ brew install https://raw.githubusercontent.com/Homebrew/homebrew-versions/master/gcc49.rb ######################################################################## 100.0% ==> Downloading http://ftpmirror.gnu.org/gcc/gcc-4.9.

当我尝试安装

gcc49

时，收到一个错误

 $  brew install https://raw.githubusercontent.com/Homebrew/homebrew-versions/master/gcc49.rb
######################################################################## 100.0%
==> Downloading http://ftpmirror.gnu.org/gcc/gcc-4.9.3/gcc-4.9.3.tar.bz2
Already downloaded: /Library/Caches/Homebrew/gcc49-4.9.3.tar.bz2
==> ../configure --build=x86_64-apple-darwin14.5.0 --prefix=/usr/local/Cellar/gcc49/4.9.3 --libdir=/usr/local/Cellar/gcc49/4.9.3/lib/gcc/4.9 --enable-languages=c,c++,objc,obj-c++ --program-suffix=-4.9 --w
checking for version 0.10 of ISL... no
checking for version 0.11 of ISL... no
checking for version 0.12 of ISL... no
checking for version 0.14 of ISL... no
configure: error: Unable to find a usable ISL.  See config.log for details.
Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.

READ THIS: https://git.io/brew-troubleshooting

但是，我有ISL：

$  brew info isl
isl: stable 0.14.1 (bottled), HEAD
Integer Set Library for the polyhedral model
http://freecode.com/projects/isl
/usr/local/Cellar/isl/0.14.1 (68 files, 3.2M) *
  Poured from bottle
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/isl.rb
==> Dependencies
Build: xz ✔
Required: gmp ✔

我不知道

config.log

在哪里。

安装GCC4.9的正确方法是使用

$ brew install homebrew/versions/gcc49

这样，Homebrew将正确解决缺少的依赖项，并为您安装它们。您可以使用找到此版本的

gcc

（或任何其他版本）

或

但是，缺少的依赖项不是

isl

，而是

isl011

。您可以使用安装

$ brew install isl011

我们可以看到，这是一个

gcc49

与

$ brew info gcc49
==> Dependencies
Required: gmp4 ✔, libmpc08 ✔, mpfr2 ✔, cloog018 ✔, isl011 ✔

问题是由更新的Xcode引起的。需要运行：“$xcode select--install”

问题是由更新的xcode引起的。“$xcode select--install”我最近更新了xcode，不必运行

xcode select--install

。看起来您卸载了命令行开发人员工具，或者从捆绑了这些工具的XCode版本升级到了没有捆绑的XCode版本。然而，安装GCC4.9的正确方法仍然是我的答案。你是对的！！！我的mac电脑几周前坏了，被送到苹果商店修理。他们换了我的逻辑板，我完全忘了

$ brew install isl011

$ brew info gcc49
==> Dependencies
Required: gmp4 ✔, libmpc08 ✔, mpfr2 ✔, cloog018 ✔, isl011 ✔