Log message:
Changes 5.1.3:

  BUGS FIXED
  * The internal functions mpn_sbpi1_div_qr_sec mpn_sbpi1_div_r_sec could
    compute garbage with a low probability.  They are now rewritten, and the
    test code has been improved.

  * A bug in the ia64 implementation of mpn_divrem_2, clobbering some
    callee-save registers, has been fixed. This is an internal
    function, with the bug manifesting itself as miscomputation in,
    e.g., mpn_sqrtrem.

  * The documentation now correctly says 'const' for input arguments.

Log message:
Update to 5.1.2:

Changes between GMP version 5.1.1 and 5.1.2

  BUGS FIXED
  * A bug in mpz_powm_ui triggered by base arguments of at least 15000 decimal
    digits or mod arguments of at least 7500 decimal digits has been fixed.

  * A AMD Bulldozer specific bug affecting the 64-bit Windows ABI has been
    fixed.  This bug was in a key function (mpn_mul_1) and made both Bulldozer
    specific builds and fat builds run on Bulldozer completely non-functional.

  MISC
  * Fixes and generalisations to the test suite.

  * Minor portability enhancements.

Log message:
Fix devel/gmp cross-build by telling it about the native C compiler.

ok agc

Log message:
Perform fetch at fetch phase.

Log message:
"fetch" isn't a good target to fetch distfiles, it doesn't calculate \ 
digests.
Use "checksum" instead.

Log message:
Changes 5.1.1:
BUGS FIXED
On Windows 64-bit, an error causing link errors about __gmp_binvert_limb_table \ 
has been fixed.
Aarch64 alias ARM64 support now works.
A possible buffer overrun in mpz_ior has been fixed.
A rare sign flip in mpz_remove has been fixed.
A bug causing problems with mpf numbers with absolute value ≥ 231 has been \ 
fixed.
Several bugs in mini-gmp have been fixed.
A bug caused by automake, related to the 'distcheck' target, has been fixed by \ 
upgrading the automake used for GMP release engineering.

FEATURES
Preliminary support for the x32 ABI under x86-64.

MISC
The mini-gmp testsuite now tests the entire set of functions.
Various improvements of the GMP testsuite.

Log message:
Document .tar.bz2 requirement, requested by wiz.

Log message:
Use .tar.bz2 distfile so that no extra dependency on archivers/xz is
needed when building lang/gcc* with option gcc-inplace-math.

Log message:
Changes 5.1.0:

BUGS FIXED
* When reading a C++ number (like mpz_class) in an istream reaches the end
  of the stream, the eofbit is now set.

* The result sign of mpz_rootrem's remainder is now always correct.
* The mpz_remove function now handles negative divisors.
* Contains all fixes from release 5.0.5.

SPEEDUPS
* The n-factorial and n-over-k functions have been reimplemented for great
  speedups for small and large operands.
* New subquadratic algorithm for the Kronecker/Jacobi/Legendre symbol.
* Major speedup for ARM, in particular ARM Cortex-A9 and A15, thanks to broad
  assembly support.
* Significant speedup or POWER6 and POWER7 thanks to improved assembly.
* The performance under M$ Windows' 64-bit ABI has been greatly improved
  thanks to complete assembly support.
* Minor speed improvements of many functions and for many platforms.

FEATURES
* Many new CPUs recognised.
* New functions for multi-factorials, and primorial: mpz_2fac_ui,
  mpz_mfac_uiui and mpz_primorial_ui.
* The mpz_powm_sec function now uses side-channel silent division for
  converting into Montgomery residues.
* The fat binary mechanism is now more robust in its CPU recognition.

MISC
* Inclusion of assembly code is now controlled by the configure options
  --enable-assembly and --disable-assembly.  The "none" CPU targets is \ 
gone.
* In C++, the conversions mpq_class->mpz_class, mpf_class->mpz_class and
  mpf_class->mpq_class are now explicit.
* Includes "mini-gmp", a small, portable, but less efficient, \ 
implementation
  of a subset of GMP's mpn and mpz interfaces. Used in GMP bootstrap, but it
  can also be bundled with applications as a fallback when the real GMP
  library is unavailable.
* The ABIs under AIX are no longer called aix32 and aix64, but mode64 and 32.
  This is more consistent with other powerpc systems.
* The coverage of the testsuite has been improved, using the lcov tool.  See
  also http://gmplib.org/devel/lcov/.
* It is now possible to compile GMP using a C++ compiler.
* K&R C compilers are no longer supported.
* The BSD MP compatibility functions have been removed.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.