GNU MPFR version 3.1.2 (released on 13 March 2013)

The canard à l'orange release, patch level 2.

MPFR 3.1.2 requires GMP 4.1.0 or higher (GMP 4.2.3 or higher is recommended).

Warning! Due to the fact that TLS support is now detected automatically, the MPFR build can be incorrect on some platforms (compiler or system bug). Indeed, the TLS implementation of some compilers/platforms is buggy, and MPFR cannot detect every problem at configure time. Please run make check to see if your build is affected. If you get failures, you should try the --disable-thread-safe configure option to disable TLS and see if this solves these failures. But you should not use an MPFR library with TLS disabled in a multithreaded program (unless you know what you are doing).

Download

The MPFR 3.1.2 source can be downloaded in the following archive formats:

• mpfr-3.1.2.tar.xz (tar/xz, 1.1 MB, signature),
• mpfr-3.1.2.tar.bz2 (tar/bzip2, 1.2 MB, signature),
• mpfr-3.1.2.tar.gz (tar/gzip, 1.6 MB, signature),
• mpfr-3.1.2.zip (zip, 2.0 MB, signature).

Each tarball is signed by Vincent Lefèvre. This can be verified using the DSA key ID 98C3739D; this key can be retrieved with:

gpg --recv-keys 98C3739D

or by downloading it from https://www.vinc17.net/pgp.html. The key fingerprint is:

07F3 DBBE CC1A 3960 5078  094D 980C 1976 98C3 739D

The signatures can be verified with:

gpg --verify file.asc

You should check that the key fingerprint matches.

MPFR is also available via third-party packages and ports.

Documentation

• The reference manual: [html] [dvi] [ps] [pdf]
• The MPFR FAQ (common to all MPFR versions).

Bugs

See the tracker and the BUGS file.

Changes from version 3.1.1 to version 3.1.2

• Bug fixes (detailed list on the MPFR 3.1.1 page).
• Updated examples to the MPFR 3.x API.

Note: The official tarballs for MPFR up to 3.1.1 were affected by a vulnerability for make distcheck due to a bug in old GNU Automake versions. One of the purposes of this release is to provide tarballs without this vulnerability.

Platforms Known to Support MPFR

MPFR 3.1.2 has been successfully compiled and checked on the following platforms:

• armv5tejl-unknown-linux-gnueabi (ARM926EJ-S rev 5, gcc 4.4.5, under qemu),
• hppa2.0-unknown-linux-gnu (gcc 4.4.1 with -O2 in CFLAGS and --disable-thread-safe; gcc 4.8 experimental),
• i386-pc-solaris2.10 (Sun C 5.9 SunOS_i386 Patch 124868-10 2009/04/30),
• i686-apple-darwin10 (Core2, via fink),
• i686-pc-linux-gnu (gcc and g++ 4.4.5),
• i686-w64-mingw32 (Windows 2008 R2, gcc 4.7.3 prerelease),
• ia64-unknown-linux-gnu (gcc 4.4.5),
• m68040 processor, gcc 4.7.3, under ARAnyM 0.9.14,
• mips64el-unknown-linux-gnu (gcc 4.4.6),
• powerpc-apple-darwin8 (PowerPC 32 bits, via fink),
• powerpc64-unknown-linux-gnu (POWER7, gcc 4.7.2),
• sparc64-unknown-linux-gnu (gcc 4.3.2),
• x86_64-apple-darwin11 (gcc 4.6.3, with MPIR 2.6.0),
• x86_64-apple-darwin12 (gcc 4.6.3, with MPIR 2.6.0),
• x86_64-unknown-linux-gnu (gcc 4.4.5, 4.7.2 and 4.8 snapshot, g++ 4.7.2, llvm-gcc 4.6.3, and clang 3.0),
• x86_64-unknown-netbsd5.1 (gcc 4.1.3),
• x86_64-w64-mingw32 (Windows 2008 R2, gcc 4.7.3 prerelease).

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