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install.texi (Prerequisites): Suggest building GMP... 

* doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
	MPC as part of GCC before describing configuring with --with-gmp etc.
	(Installing GCC: Configuration): --with-gmp etc. aren't needed if
	sources are present.

From-SVN: r184232
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Jonathan Wakely 2012-02-14 20:34:41 +00:00 committed by Jonathan Wakely
parent 61c8513078
commit 7a07ae5284
2 changed files with 31 additions and 21 deletions
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@ -1,3 +1,10 @@
2012-02-14 Jonathan Wakely <jwakely.gcc@gmail.com>
* doc/install.texi (Prerequisites): Suggest building GMP, MPFR and
MPC as part of GCC before describing configuring with --with-gmp etc.
(Installing GCC: Configuration): --with-gmp etc. aren't needed if
sources are present.
2012-02-14 Jakub Jelinek <jakub@redhat.com>
PR debug/51950

45
gcc/doc/install.texi
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@ -328,37 +328,39 @@ others optional. While any sufficiently new version of required tools
usually work, library requirements are generally stricter. Newer
versions may work in some cases, but it's safer to use the exact
versions documented. We appreciate bug reports about problems with
newer versions, though.
newer versions, though. If your OS vendor provides packages for the
support libraries then using those packages may be the simplest way to
install the libraries.
@table @asis
@item GNU Multiple Precision Library (GMP) version 4.3.2 (or later)
Necessary to build GCC@. If you do not have it installed in your
library search path, you will have to configure with the
Necessary to build GCC@. If a GMP source distribution is found in a
subdirectory of your GCC sources named @file{gmp}, it will be built
together with GCC. Alternatively, if GMP is already installed but it
is not in your library search path, you will have to configure with the
@option{--with-gmp} configure option. See also @option{--with-gmp-lib}
and @option{--with-gmp-include}. Alternatively, if a GMP source
distribution is found in a subdirectory of your GCC sources named
@file{gmp}, it will be built together with GCC@.
and @option{--with-gmp-include}.
@item MPFR Library version 2.4.2 (or later)
Necessary to build GCC@. It can be downloaded from
@uref{http://www.mpfr.org/}. The @option{--with-mpfr} configure
option should be used if your MPFR Library is not installed in your
default library search path. See also @option{--with-mpfr-lib} and
@option{--with-mpfr-include}. Alternatively, if a MPFR source
distribution is found in a subdirectory of your GCC sources named
@file{mpfr}, it will be built together with GCC@.
@uref{http://www.mpfr.org/}. If an MPFR source distribution is found
in a subdirectory of your GCC sources named @file{mpfr}, it will be
built together with GCC. Alternatively, if MPFR is already installed
but it is not in your default library search path, the
@option{--with-mpfr} configure option should be used. See also
@option{--with-mpfr-lib} and @option{--with-mpfr-include}.
@item MPC Library version 0.8.1 (or later)
Necessary to build GCC@. It can be downloaded from
@uref{http://www.multiprecision.org/}. The @option{--with-mpc}
configure option should be used if your MPC Library is not installed
in your default library search path. See also @option{--with-mpc-lib}
and @option{--with-mpc-include}. Alternatively, if an MPC source
distribution is found in a subdirectory of your GCC sources named
@file{mpc}, it will be built together with GCC@.
@uref{http://www.multiprecision.org/}. If an MPC source distribution
is found in a subdirectory of your GCC sources named @file{mpc}, it
will be built together with GCC. Alternatively, if MPC is already
installed but it is not in your default library search path, the
@option{--with-mpc} configure option should be used. See also
@option{--with-mpc-lib} and @option{--with-mpc-include}.
@item Parma Polyhedra Library (PPL) version 0.11
@ -1608,10 +1610,11 @@ When neither of these configure options are used, the default will be
@itemx --with-mpc=@var{pathname}
@itemx --with-mpc-include=@var{pathname}
@itemx --with-mpc-lib=@var{pathname}
If you do not have GMP (the GNU Multiple Precision library), the MPFR
If you want to build GCC but do not have the GMP library, the MPFR
library and/or the MPC library installed in a standard location and
you want to build GCC, you can explicitly specify the directory where
they are installed (@samp{--with-gmp=@var{gmpinstalldir}},
do not have their sources present in the GCC source tree then you
can explicitly specify the directory where they are installed
(@samp{--with-gmp=@var{gmpinstalldir}},
@samp{--with-mpfr=@/@var{mpfrinstalldir}},
@samp{--with-mpc=@/@var{mpcinstalldir}}). The
@option{--with-gmp=@/@var{gmpinstalldir}} option is shorthand for