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Diffstat (limited to 'gcc/doc/install.texi')
| -rw-r--r-- | gcc/doc/install.texi | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index fa158350b33..66ec7ca9bf4 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -290,17 +290,20 @@ Necessary (only on some platforms) to untar the source code. Many systems' @command{tar} programs will also work, only try GNU @command{tar} if you have problems. -@item GNU Multiple Precision Library (GMP) version 4.0 (or later) +@item GNU Multiple Precision Library (GMP) version 4.1 (or later) -Necessary to build the Fortran frontend. If you don't have it +Necessary to build the Fortran frontend. If you do not have it installed in your library search path, you will have to configure with the @option{--with-gmp} or @option{--with-gmp-dir} configure option. -@item MPFR Library +@item MPFR Library version 2.2 (or later) Necessary to build the Fortran frontend. It can be downloaded from -@uref{http://www.mpfr.org/}. It is also included in the current GMP -release (4.1.3) when configured with @option{--enable-mpfr}. +@uref{http://www.mpfr.org/}. The version of MPFR that is bundled with +GMP 4.1.x contains numerous bugs. Although gfortran will appear +to function with the buggy verions of MPFR, there are few gfortran bugs +that will not be fixed to use this version. It is strongly +recommended to upgrade to at least MPFR version 2.2. The @option{--with-mpfr} or @option{--with-mpfr-dir} configure option should be used if your MPFR Library is not installed in your library search path. |