Installationofmacportsgccandgfortran1.gotothelinkhttp://www.macports.org/install.php

2.Afterconsideringyourspecificlaptop,downloadit.Ithasawalkthroughthatcomeswiththepackage.(you’llanadministratorpasswordtocompleteit).

3.DownloadandinstallXcodeattheAppStorebysearchingxcodeatthetopright-handcorner.

4.Downloadit(You’llneedanAppleIDinordertodownloadXcode)

5.Itisabigdownloadof4.5GB.It’lltakeawhile…6.Afteritfinisheddownloadingbegininstallation.Thatcanalsotakeawhile…7.Nowthatis’sfinished,youneedtostartXCodetoallowittoinstalladditionalcomponents.(you’lladministratorpasswordtocompleteit).

8.Onceitisopen,theadditionalcomponentshavebeeninstalledandyoucancloseit.

9.NowyouneedinstalltheCommandLineTools.Openyourterminalandtypexcode-select–install

10.Thefollowingwindowwillopen.Clickinstall.

11.Afteryouhavesuccessfullyinstalledthecommandlinetools,openyourterminalandtypewhichgcc

12.Thecommandshouldreturnthepath/usr/local/binor/usr/local/gcc.Allofthisshouldhavebeentakencareofautomatically.

13.Now,downloadgfortranfromthelinkhttp://gcc.gnu.org/wiki/GFortranBinaries#MacOS

14.Afterconsideringyourspecificlaptop,downloadit.Ithasawalkthroughthatcomeswiththepackage.Double-clickonthefolderthandouble-clickonthepackage.

15.Ifyougetthefollowingmessage,gotoSystemPreferences,Security&PrivacyandOpenitAnyway.

16.gfortranalsohasawalkthroughthatcomeswiththepackage.You’llneedagainandadministratorpassword

17.Afteryouhavesuccessfullyinstalledthegfortran,openyourterminalandtypewhichgfortrananditshouldbesuccessfullyinstalledin/usr/local/bin