Instead of doing GMP by hand, use the Gnulib libgmp module.
* .gitignore: Add lib/gmp.h.
* admin/merge-gnulib (GNULIB_MODULES): Add libgmp.
* configure.ac (GMP_LIB, GMP_OBJ): Remove. Gnulib uses the name
LIB_GMP, so all uses changed. All uses of GMP_OBJ removed.
(HAVE_GMP): Set this from Gnulib’s variables.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* lib/mini-gmp-gnulib.c, lib/mini-gmp.c, lib/mini-gmp.h, m4/libgmp.m4:
New files, copied from Gnulib.
* src/bignum.h, test/data/emacs-module/mod-test.c:
Include gmp.h unconditionally.
* src/mini-gmp-emacs.c, src/mini-gmp.c, src/mini-gmp.h:
Remove. This moves these files from src to lib, and
updates them to the current GMP version.
* test/Makefile.in (GMP_H): New macro.
($(test_module)): Use it to decide whether to compile
mini-gmp-gnulib.c too.
* src/mini-gmp.c, src/mini-gmp.h: Copy from GMP 6.2.0.
This incorporates:
2019-12-05 remove some sizeof(mp_limb_t)
2019-12-04 (mpn_invert_3by2): Remove special code for limb sizes
2019-12-04 (mpn_invert_3by2): Limit size of an intermediate
2019-11-20 (mpn_invert_3by2): Use xor instead of negation
2019-11-19 (mpn_invert_3by2): Move an assert earlier
2019-11-19 (mpn_invert_3by2): Add a new shortcut
2019-11-17 Prepend "unsigned" to MINI_GMP_LIMB_TYPE
2019-11-17 Enable testing with different limb sizes (types)
2019-11-20 Use already defined constants
2019-11-09 Avoid undefined behaviour with small limb sizes
* admin/update-copyright (updatable_files):
Don’t update copyright year on files copied from GMP, so that
they’re identical to upstream.
* src/mini-gmp.c, src/mini-gmp.h: Copy from GMP development
versions as of 2019-01-01 20:15:39 UTC.
Update some other copyright years automatically, by running:
Run 'UPDATE_COPYRIGHT_YEAR=2019 \
UPDATE_COPYRIGHT_USE_INTERVALS=1 \
UPDATE_COPYRIGHT_MAX_LINE_LENGTH=79 admin/update-copyright'
followed by 'admin/merge-gnulib'.
