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| author | Brooks Moses <brooks.moses@codesourcery.com> | 2007-03-06 08:15:56 +0000 |
|---|---|---|
| committer | Brooks Moses <brooks@gcc.gnu.org> | 2007-03-06 00:15:56 -0800 |
| commit | 4b4eb6480d273e302d5f4addee13b49e584bead4 (patch) | |
| tree | b8d795b7b82de9eda170e606030003e634aa3dc9 | |
| parent | 090021e9a0289b670d14509935a1cea8cf61346e (diff) | |
| download | gcc-4b4eb6480d273e302d5f4addee13b49e584bead4.zip gcc-4b4eb6480d273e302d5f4addee13b49e584bead4.tar.gz gcc-4b4eb6480d273e302d5f4addee13b49e584bead4.tar.bz2 | |
* gfortran.texi (GFortran and G77): Rewrite completely.
From-SVN: r122602
| -rw-r--r-- | gcc/fortran/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/fortran/gfortran.texi | 36 |
2 files changed, 10 insertions, 30 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index 9eb54ae..c36a631 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,5 +1,9 @@ 2007-03-05 Brooks Moses <brooks.moses@codesourcery.com> + * gfortran.texi (GFortran and G77): Rewrite completely. + +2007-03-05 Brooks Moses <brooks.moses@codesourcery.com> + * match.c (gfc_match_name): Expanded comment. 2007-03-05 Brooks Moses <brooks.moses@codesourcery.com> diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi index 3c18563..3f4a149 100644 --- a/gcc/fortran/gfortran.texi +++ b/gcc/fortran/gfortran.texi @@ -389,36 +389,12 @@ Fortran compiler. @cindex Fortran 77 @cindex G77 -Why do we write a compiler front end from scratch? -There's a fine Fortran 77 compiler in the -GNU Compiler Collection that accepts some features -of the Fortran 90 standard as extensions. -Why not start from there and revamp it? - -One of the reasons is that Craig Burley, the author of G77, -has decided to stop working on the G77 front end. -On @uref{http://world.std.com/~burley/g77-why.html, -Craig explains the reasons for his decision to stop working on G77} -in one of the pages in his homepage. -Among the reasons is a lack of interest in improvements to -@command{g77}. -Users appear to be quite satisfied with @command{g77} as it is. -While @command{g77} is still being maintained (by Toon Moene), -it is unlikely that sufficient people will be willing -to completely rewrite the existing code. - -But there are other reasons to start from scratch. -Many people, including Craig Burley, -no longer agreed with certain design decisions in the G77 front end. -Also, the interface of @command{g77} to the back end is written in -a style which is confusing and not up to date on recommended practice. -In fact, a full rewrite had already been planned for GCC 3.0. - -When Craig decided to stop, -it just seemed to be a better idea to start a new project from scratch, -because it was expected to be easier to maintain code we -develop ourselves than to do a major overhaul of @command{g77} first, -and then build a Fortran 95 compiler out of it. +The GNU Fortran compiler is the successor to G77, the Fortran 77 front +end included in GCC prior to version 4. It is an entirely new program +that has been designed to provide Fortran 95 support and extensibility +for future Fortran language standards, as well as providing backwards +compatibility for Fortran 77 and nearly all of the GNU language +extensions supported by G77. @c --------------------------------------------------------------------- |