自制安装g ++ 4.7无法正常工作

Question

all over the internet you can find explanations where people forget to mention something. Could you please give me a complete explanation on how to install g++ 4.7 on my os x yosemite? I used the following commands:

1) ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install )"

2) brew tap homebrew/versions

3) brew install gcc47

Seems to have worked according to the success messages. And still, the program that I want to install (which needs g++ 4.7 or higher) fails because there is no g++ 4.7

What to do?

Answer 1

Okay, found the answer. It is: Don't use homebrew :-P

This worked for me: Install macports, ie download the .pkg file from the homepage, double-click it and say yes yes yes, confirm, yes agree credit card yes np, confirm, ok ok ok, cya

Then start a terminal (If you had one opened before the macports install you need to restart it!)

Then use these commands:

sudo port selfupdate

sudo port install gcc47

sudo port select --set gcc mp-gcc47