* include/types.h (GNUPG_GCC_ATTR_UNUSED): Define for gcc >= 3.5.
* mpi/mpih-div.c (mpihelp_divmod_1, mpihelp_mod_1): Mark dummy as
unused.
* mpi/mpi-internal.h (UDIV_QRNND_PREINV): Mark _ql as unused.
--
Due to the use of macros and longlong.h, we use variables which are
only used by some architectures. At least gcc 4.7.2 prints new
warnings about set but not used variables. This patch silences them.
* mpi/mpi-internal.h (MPN_COPY_INCR): Make it work.
--
This bug has been with us since the version 0.0.0 of GnuPG.
Fortunately it only affects an optimized code path which is rarely
used in practice: If the shift size matches the size of a
limb (i.e.. 32 or 64); this is is_prime in primegen.c. Over there the
Rabin-Miller test may fail with a probability of 2^-31 (that is if the
to be tested prime - 1 has the low 32 bits cleared). In practice the
probability is even much less because we first do a Fermat test on the
randomly generated candidates which sorts out the majority of
composite numbers.
The bug in MPN_COPY_INCR was found by Sven Bjorn.
Signed-off-by: Werner Koch <wk@gnupg.org>
(back ported from Libgcrypt
commit 7f7a5ef59962ae1a819b5060f9b781469bfe27d5)
mpi-internal.h, mpi-scan.c: Edit all preprocessor instructions to remove
whitespace before the '#'. This is not required by C89, but there are
some compilers out there that don't like it.
