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Now run your program! ln -s /usr/local/bin/gcc-6 cc Where the directory should be replaced by the directory where default gcc is placed Here is command for replacing the default gcc compiler with the newest one.
Update gcc macports update#
You can update Macports by: sudo brew updateįor installation of Homebrew, please check MacPorts and Homebrew. Please use the following to check available flags: sudo brew options gcc6Īnd use the following for checking available gcc versions: sudo brew search gcc You can update Macports by: sudo port selfupdate Where the first line is for installation, second line for listing existing compilers by Macports and the last one is to select default gcc compiler. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%įor Linux/Unix based machines, a complete instruction is available at the installation page of gcc website.įor Mac users, there are more choices except for the one above (installing from source, gcc version 6.1 which can be replaced!): Now that you have the GSL installed, you can remove the gsl-*.* directory that was created in your home directory.
Update gcc macports install#
Download and install the MacPorts pkg installer appropriate for your OS.
Update gcc macports for mac#
Create the following program and name it example.c #include Ĭompile and link the program with the following commands (but use the correct path for your username): gcc -Wall -I/home/yourname/gsl/include -c example.c gcc -L/home/yourname/gsl/lib example.o -lgsl -lgslcblas -lm Installing GCC 5.1 for Mac Users Download and install Xcode from the Mac App Store. Now we can write a test program to see if the library works. If there are no errors, go ahead and install the library with: make install Now it is necessary to check and test the library before actually installing it. If there are no errors, compile the library. This step may take a few minutes./configure -prefix=/home/yourname/gsl Now configure the installation and tell it to use your new directory. Create a directory to install your gsl package, say “/home/yourname/gsl” with the following command mkdir /home/yourname/gsl The next step is to configure the installation and tell the system where to install the files. This will create a directory called gsl-*.* in your home directory. Place the file in your home directory and unpack the file with the following command: tar -zxvf gsl-*.*.tar.gz You can also download here and unzip the program directly depending on the OS you are working with. Please check release history available at . *.* should be replaced by the version to be installed. One MacPorts is done, the next thing is to compile a simple program. Note: this tutorial has been tested on Ubuntu, Redhat and Mac OS. Applications > Utilities > Terminal Make sure that you have the latest version by running the self update via the terminal command sudo port selfupdate Install GCC via the terminal command sudo port install gcc47 Now sit back and wait while MacPorts does its thing. It is a free open source library under the GNU General Public License. The GNU Scientific Library (GSL) is a numerical library for C and C++ programmers.