Preparing GCC Build: Difference between revisions

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You can download the desired GCC release by visiting the [https://gnu.org/software/gcc/ GCC website] or directly accessing the [ftp://ftp.gnu.org/gnu/gcc/ GNU main FTP mirror].
You can download the desired GCC release by visiting the [https://gnu.org/software/gcc/ GCC website] or directly accessing the [ftp://ftp.gnu.org/gnu/gcc/ GNU main FTP mirror].


In addition, to build GCC you need to have installed GNU GMP, GNU MPFR, GNU MPC and the ISL library. You may already have these libraries and the development files installed, but this tutorial builds them as part of GCC. If you don't need this, simply don't build them as part of GCC. Note that not all GMP, MPFR and MPC combinations are compatible with a given GCC release. You also need texinfo to build Binutils.
In addition, to build GCC you need to have installed GNU GMP, GNU MPFR, GNU MPC and the ISL library. You may already have these libraries and the development files installed, but this tutorial builds them as part of GCC. If you don't need this, simply don't build them as part of GCC. Note that not all GMP, MPFR and MPC combinations are compatible with a given GCC release. You also need Texinfo to build Binutils.


You can download [http://gmplib.org/ GNU GMP from its website]. (libgmp3-dev on apt-based systems, dev-libs/gmp on Gentoo, gmp-devel on Fedora, libgmp-devel on Cygwin)
You can download [http://gmplib.org/ GNU GMP from its website]. (libgmp3-dev on apt-based systems, dev-libs/gmp on Gentoo, gmp-devel on Fedora, libgmp-devel on Cygwin)
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'''Note:''' The versioning scheme used is that each fullstop separates a full number, i.e. Binutils 2.20.0 is newer than 2.9.0. This may be confusing, if you have not encountered this (quite common) versioning scheme yet, when looking at an alphanumerically sorted list of tarballs: The file at the bottom of the list is not the latest version! An easy way of getting the latest version is to sort by the last modified date and scrolling to the bottom.
'''Note:''' The versioning scheme used is that each fullstop separates a full number, i.e. Binutils 2.20.0 is newer than 2.9.0. This may be confusing, if you have not encountered this (quite common) versioning scheme yet, when looking at an alphanumerically sorted list of tarballs: The file at the bottom of the list is not the latest version! An easy way of getting the latest version is to sort by the last modified date and scrolling to the bottom.


'''Note:''' Version 5.x (or later) of texinfo is known to be incompatible with the current Binutils 2.23.2 release (and older). You can check your current version using <tt>makeinfo --version</tt>. If your version is too new and you encounter problems during the build, you will need to either use Binutils 2.24 release (or newer) or install an older version of texinfo - perhaps through building from source - and add it to your <tt>PATH</tt> prior and during the Binutils build.
'''Note:''' Version 5.x (or later) of Texinfo is known to be incompatible with the current Binutils 2.23.2 release (and older). You can check your current version using <tt>makeinfo --version</tt>. If your version is too new and you encounter problems during the build, you will need to either use Binutils 2.24 release (or newer) or install an older version of Texinfo - perhaps through building from source - and add it to your <tt>PATH</tt> prior and during the Binutils build.


'''Note:''' Version 0.13 (or later) of ISL is incompatible with the current CLooG 0.18.1 release (and older). Use version 0.12.2 of ISL or the build '''will''' fail.
'''Note:''' Version 0.13 (or later) of ISL is incompatible with the current CLooG 0.18.1 release (and older). Use version 0.12.2 of ISL or the build '''will''' fail.
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