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The purpose of the GNU Fortran (GFortran) project is todevelop the Fortran compiler front end and run-time librariesfor GCC, the GNU Compiler Collection. GFortran development is partof the GNU Project. We seek to bringfree number crunching to a broad spectrum of platforms and users.
In particular, the project wishes to reach users of theFortran language, be it in the scientific community, education, or commercial environments. The GFortran compiler is fully compliantwith the Fortran 95 Standard and includes legacy F77 support.In addition, a significant number of Fortran 2003 and Fortran 2008features are implemented. Please give it a try. If you encounter problems,contact us at the mailing list or file a problem report.
GFortran development follows the open development process. We dothis to attract a diverse team of developers and to ensure that GFortranworks on multiple architectures and diverse environments. We always needmore help. If you are interested in participating, please contact us [email protected].(Also check out our mailing lists page.)
- Homebrew is a package manager - it lets you quickly and easily download and install tools, libraries, and applications that are usually pre-compiled and always ready to work with your Mac. Downloads - NAG Fortran Compiler Versions. Then you can invoke the command gfortran to compile your code. I've been using gcc in a mac and I never had a problem.
- Mar 02, 2017 Therefore module files created by the version 16.0 or newer Fortran compiler cannot be used with version 15.0 or older Fortran compilers. Stack Alignment Change for REAL(16) and COMPLEX(16) Datatypes In versions prior to 12.0, when a REAL(16) or COMPLEX(16) (REAL.16 or COMPLEX.32) item was passed by value, the stack address was aligned at 4 bytes.
The Wiki and Getting the Compiler
For additional info on GFortran developments, you may find theGFortran wiki useful. Anyone may contribute information to the wiki. (Neither copyrightpaperwork nor a patch review process is required.)
Pro Fortran Compiler Suite 9.0 is a program which is built for Fortran development on Macintosh. Included with the tool kit are both Fortran 95 and C/C compilers, a powerful IDE, industry leading Fx2A?? Debugging environment, math and VAX/Unix.
See full list on gcc.gnu.org. An Advantage for Applications. The IntelĀ® Fortran Compiler delivers benefits and capabilities by compiling applications that run on the IntelĀ® architectures for Windows., Linux., or macOS. Use the compiler in the command line or in a supported IDE.
You will be able to choose among a huge arsenal of weapons, beginning with primitive archers and warriors, then catapults, knights. Civilization 4 download ita mac pro.
The GNU Project is about providing source code for its programs. For convenience, a number of people regularly build binaries for different platforms. Links to these can be found at the wiki. Most of the binary executables are the latest development snapshots of GFortran and areprovided to encourage testing. We also want new users, from studentsto masters of the art of Fortran, to try GFortran.It really is a great compiler!
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Project Objectives
We strive to provide a high quality Fortran compiler that workswell on a variety of native targets. This means:
- Conformance to Fortran standards, primarily Fortran 95, 2003,and 2008
- Performance of executables and computational accuracy
- Reasonable compile speed and cross compilation capability
- Good diagnostics and debugging features
- Legacy code support where practical.
Extensions in GNU Fortran
The initial goal of the GNU Fortran Project was construction of aFortran 95 compiler that complies with the ISO Fortran 95 ProgrammingLanguage standard [ISO/IEC 1539-1:1997(E)]. We are now well intoF2003 and F2008 features.The GFortranwiki and our bug trackerlist features under development or yet to be implemented. Compilercapability is quite extensive and includes nearly all g77 features.We highly encourage users to move from g77, which is no longermaintained, and start taking advantage of GFortran's modern features.Legacy g77 code will compile fine in almost all cases.
Status of Compiler and Run-time Library
We regularly update thestatusof the front end and run-time library development.
Contributing
We encourage everyone to contribute changes and help test GNU Fortran. GNU Fortran is developed onthe mainline of GCC and has been part of the compiler collectionsince the 4.0.0 release.
Contributions will be reviewed by at least one of the followingpeople:
- Paul Brook
- Steven Bosscher
- Bud Davis
- Jerry DeLisle
- Toon Moene
- Tobias Schlueter
- Janne Blomqvist
- Steve Kargl
- Thomas Koenig
- Paul Thomas
- Janus Weil
- Daniel Kraft
- Daniel Franke
Under the rules specified below:
- All normalrequirements for patch submission (assignment of copyright tothe FSF, testing, ChangeLog entries, etc) still apply, andreviewers should ensure that these have been met before approvingchanges.
- Approval should be necessary forpatches which don't fall under the obvious rule. So, with the approver listput in place, everybody (except maintainers) should still seek approval for his/her patches. We have found the mutual peer review process really works well.
- Patches should only be reviewed bypeople who know the affected parts of the compiler. (i.e. thereviewer has to be sure he/she knows stuff well enough to make agood judgment.)
- Large/complicated patches shouldstill go by one of our maintainers, or team consensus.
- We are all reasonable people, and nobody is working underemployer pressure or needs an ego-boost badly, so in general weassume that no-one deliberately does anything stupid :-)
The directories involved are:
- gcc/gcc/fortran/
- gcc/gcc/testsuite/gfortran.dg/
- gcc/gcc/testsuite/gfortran.fortran-torture/
- gcc/libgfortran/
Documentation
The manuals for release and current development versions of GNUFortran can be downloaded from thewiki documentationpage or theGCC online documents page.
Usage
Here is a shortexplanationon how to invoke and use the compiler once you have built it (ordownloaded the binary).
Suggested Reading
We provide links to other informationrelevant to Fortran programmers; theGFortranwiki contains further links.
For questions related to the use of GCC,please consult these web pages and theGCC manuals. If that fails,the [email protected] list might help.Comments on these web pages and the development of GCC are welcome on ourdeveloper list at [email protected] of our listshave public archives.Copyright (C)Free Software Foundation, Inc.Verbatim copying and distribution of this entire article ispermitted in any medium, provided this notice is preserved.
These pages aremaintained by the GCC team.Last modified 2020-01-21.
gfortran for Mac
DISCLAIMER: I provide this information here to aid my memory and in thehope that others will find it a useful resource based on my experiences of installing a gfortran compiler on Macs. I am not a computer scientist orFortran guru and, as such, am unlikely to be able to help you with Fortran code,compilation or runtime problems.
There are several options available for installing gfortran for Mac OS X,other than installing from source code.
GCC Wiki
I currently choose to use the relevant gfortran installer (.dmg) packagesprovided through the GCC Wiki (opens in new window). Note that the files areinstalled in /usr/local system directories which require the administratorpassword.
HPC
There are also various tar-files of gfortran distributions provided at the High PerformanceComputing web page. There are up-to-date distributions for some systems(only Mac OS X 10.7 (Lion), 10.8 (Mountain Lion), 10.9 (Mavericks) and 10.10(Yosemite) as of the last update of this page).
I recommend not to choose a package containing a version that is not a stable version accordingto the main GCC web site. Furthermore, for simplicity, I would recommendonly to install the relevant 'gfortran only' distributions.
The files are gzip'd tar-files which should be unpacked, for instance byusing the Terminal application, as follows:
sudo tar xvfz[tar-file] -C /
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Note that the files are installed in /usr/local system directories whichrequire the administrator password.
The R Project
Previously, I had preferred to use the gfortran packages distributed inassociation with the R Project. These can be found in the 'Apple Xcode gcc-42add-ons' section of their Tools web page (opens in new window) or via the direct linksbelow. These gfortran packages and updates are specifically built to matchApple's own gcc builds. This does mean that the version is back at GCC 4.2,which is undoubtedly where it will stay since GCC changed their licensing andApple has stopped updating their GCC distribution with Xcode. Nonetheless, myexperience shows that this distribution is one that always works.
There are several packages relevant to particular Mac OS X and Xcodeinstallations. Run gcc-v to find out which Apple gcc build is currently installed as part of theXcode tools.
- Mac OS X 10.7 (Lion) and 10.8 (Mountain Lion): One may need to apply a link after installing one of these packages so 'gfortran' may be used as a command, e.g.sudo ln -s /usr/bin/gfortran-4.2 /usr/bin/gfortranOtherwise, simply use the explicit command 'gfortran-4.2'.
- Mac OS X 10.6 (Snow Leopard):
- Mac OS X 10.5 (Leopard):
The files for builds 5564 and 5566 are gzip'd tar-files which should beunpacked, for instance by using the Terminal application, as follows:
sudo tar xvfz[tar-file] -C /
Note that the files are installed in /usr system directories which requirethe administrator password.
Packages for older OS X and Xcode versions are also available on the pagelinked to above.
Compatibility and uninstalling
Note that each of these distributions has different associated libraries andother installed files which may conflict with or be wholly or partiallyoverwritten by one another. It is therefore advisable to ensure that you haveonly one distribution installed at any one time.
It is straightforward to uninstall the GCC Wiki distribution and instructionsare provided on the detailed instructions web page. Simply run the command:
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sudo rm -r/usr/local/gfortran /usr/local/bin/gfortran
It is slightly more difficult to uninstall the R Project or HPC distribution. HPC distributes gfortran as a tar-file. Therefore each file contained in thetar-file should be removed. The easiest way to do this is probably to run thecommand:
For sh/bash:
for file in $(tar tfz[tar-file]); do sudo rm -f /$file; done
for file in $(tar tfz[tar-file]); do sudo rm -f /$file; done
For csh/tcsh:
foreach file ( `tar tfz[tar-file]` )
sudo rm -f /$file
end
foreach file ( `tar tfz[tar-file]` )
sudo rm -f /$file
end
where [tar-file] is the package, for example gfortran-4.7-bin.tar.gz,gfortran-lion.tar.gz, gfortran-snwleo-intel-bin.tar.gz, etc. This will removeall files but not directories, which may contain other files that are not to be removed. To remove empty directories only, then run the command:
For sh/bash:
for file in $(tar tfz[tar-file]); do sudo rmdir -p /$file; done
for file in $(tar tfz[tar-file]); do sudo rmdir -p /$file; done
For csh/tcsh:
foreach file ( `tar tfz[tar-file]` )
sudo rmdir -p /$file
end
foreach file ( `tar tfz[tar-file]` )
sudo rmdir -p /$file
end
The R Project distribution is a .pkg file and this adds another level ofcomplication. To list the files that were installed from this package, oneneeds to locate the 'receipt', which is a .bom file. On my system (Mac OS X10.8, Mountain Lion) the file is located at/private/var/db/receipts/org.r-project.gcc-42.darwin11.pkg.bom (was/private/var/db/receipts/org.r-project.gnuFortran42.lion.usr.pkg.bom for Mac OSX 10.7, Lion; or /private/var/db/receipts/org.r-project.mac.tools.gfortran.bom for Mac OS X 10.6, Snow Leopard). To find the file, run a command such as:
sudo find / -iname'*fortran*.bom'
Once the appropriate file has been located, a list of files that have beeninstalled can be found by running the command:
lsbom -pF [bom-file]
Therefore, similarly to removing the HPC distribution, the files can beremoved by running commands such as:
For sh/bash:
for file in $(lsbom -pF[bom-file]); do sudo rm -f $file; done
for file in $(lsbom -pF[bom-file]); do sudo rmdir -p $file; done
for file in $(lsbom -pF[bom-file]); do sudo rm -f $file; done
for file in $(lsbom -pF[bom-file]); do sudo rmdir -p $file; done
For csh/tcsh:
foreach file ( `lsbom-pF [bom-file]` )
sudo rm -f $file
end
foreach file ( `lsbom-pF [bom-file]` )
sudo rmdir -p $file
end
foreach file ( `lsbom-pF [bom-file]` )
sudo rm -f $file
end
foreach file ( `lsbom-pF [bom-file]` )
sudo rmdir -p $file
end
Note that these commands should be run from the root directory (cd / first).
Free Fortran 90 Compiler
Last updated: 2020-09-02, M.Floyd (MIT)
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