Fix bignum initialization

Problem reported by Andy Moreton in:
https://lists.gnu.org/r/emacs-devel/2018-09/msg00072.html
and crystal-ball diagnosis by Eli Zaretskii in:
https://lists.gnu.org/r/emacs-devel/2018-09/msg00075.html
* src/alloc.c (xrealloc_for_gmp, xfree_for_gmp): Move to bignum.c.
(init_alloc): Move bignum initialization to init_bignum.
* src/bignum.c (init_bignum): Rename from init_bignum_once.
All users changed.
* src/emacs.c (main): Call init_bignum after init_alloc,
instead of calling init_bignum_once after init_bignum.

4 files changed, 19 insertions, 19 deletions

diff --git a/src/alloc.c b/src/alloc.c
index 1eab82d1c2b..28ca7804ee9 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -7126,18 +7126,6 @@ range_error (void)
   xsignal0 (Qrange_error);
 }
 
-static void *
-xrealloc_for_gmp (void *ptr, size_t ignore, size_t size)
-{
-  return xrealloc (ptr, size);
-}
-
-static void
-xfree_for_gmp (void *ptr, size_t ignore)
-{
-  xfree (ptr);
-}
-
 /* Initialization.  */
 
 void
@@ -7171,10 +7159,6 @@ init_alloc_once (void)
 void
 init_alloc (void)
 {
-  eassert (mp_bits_per_limb == GMP_NUMB_BITS);
-  integer_width = 1 << 16;
-  mp_set_memory_functions (xmalloc, xrealloc_for_gmp, xfree_for_gmp);
-
   Vgc_elapsed = make_float (0.0);
   gcs_done = 0;
 
diff --git a/src/bignum.c b/src/bignum.c
index 2ce7412d06c..35894f5647d 100644
--- a/src/bignum.c
+++ b/src/bignum.c
@@ -34,9 +34,25 @@ along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 
 mpz_t mpz[4];
 
+static void *
+xrealloc_for_gmp (void *ptr, size_t ignore, size_t size)
+{
+  return xrealloc (ptr, size);
+}
+
+static void
+xfree_for_gmp (void *ptr, size_t ignore)
+{
+  xfree (ptr);
+}
+
 void
-init_bignum_once (void)
+init_bignum (void)
 {
+  eassert (mp_bits_per_limb == GMP_NUMB_BITS);
+  integer_width = 1 << 16;
+  mp_set_memory_functions (xmalloc, xrealloc_for_gmp, xfree_for_gmp);
+
   for (int i = 0; i < ARRAYELTS (mpz); i++)
     mpz_init (mpz[i]);
 }
diff --git a/src/bignum.h b/src/bignum.h
index 07622a37af4..0e38c615ee6 100644
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -43,7 +43,7 @@ struct Lisp_Bignum
 
 extern mpz_t mpz[4];
 
-extern void init_bignum_once (void);
+extern void init_bignum (void);
 extern Lisp_Object make_integer_mpz (void);
 extern void mpz_set_intmax_slow (mpz_t, intmax_t) ARG_NONNULL ((1));
 
diff --git a/src/emacs.c b/src/emacs.c
index 5b399eca64f..b1c96d18285 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -1209,7 +1209,6 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
   if (!initialized)
     {
       init_alloc_once ();
-      init_bignum_once ();
       init_threads_once ();
       init_obarray ();
       init_eval_once ();
@@ -1257,6 +1256,7 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
     }
 
   init_alloc ();
+  init_bignum ();
   init_threads ();
 
   if (do_initial_setlocale)