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| author | Paul Eggert <eggert@cs.ucla.edu> | 2021-12-02 19:01:33 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2021-12-02 19:03:14 -0800 |
| commit | 9c222b9c1a7f91497a37567b4d7de3a511fff069 (patch) | |
| tree | a0e9016aac8318734b5e9d744f9cc1502bef72f3 /src/comp.h | |
| parent | fed35a89517aa4e282273f7e3c75bafd4e698ce4 (diff) | |
| download | emacs-9c222b9c1a7f91497a37567b4d7de3a511fff069.tar.gz emacs-9c222b9c1a7f91497a37567b4d7de3a511fff069.tar.bz2 emacs-9c222b9c1a7f91497a37567b4d7de3a511fff069.zip | |
Port to C compilers that lack size-0 arrays
The C standard does not allow size-zero arrays, so redo struct
Lisp_Subr to not use size-zero arrays when native compilation is
not being used. Formerly, the code was using size-zero arrays (a
GNU C extension) to avoid using memory unnecessarily when
HAVE_NATIVE_COMP is not defined. Replace this hack with the
more-traditional hack of putting the relevant members inside
‘#ifdef HAVE_NATIVE_COMP’.
* src/alloc.c (cleanup_vector, mark_object):
* src/comp.c (make_subr):
* src/data.c (Fsubr_native_lambda_list, Fsubr_native_comp_unit):
* src/eval.c (init_eval_once, funcall_lambda):
* src/lisp.h (SUBR_NATIVE_COMPILEDP, SUBR_NATIVE_COMPILED_DYNP)
(SUBR_TYPE):
* src/lread.c (Fload):
Conditionally compile with ‘#ifdef HAVE_NATIVE_COMP’ instead of
with ‘if (NATIVE_COMP_FLAG)’. Redo members like native_comp_u[0]
to be plain native_comp_u. Put all uses of these members inside
‘#ifdef HAVE_NATIVE_COMP’.
* src/lisp.h (struct Lisp_Subr): Members native_comp_u,
native_c_name, lambda_list, type are now all ifdeffed out if
HAVE_NATIVE_COMP is not defined, instead of being size-zero
arrays. All uses changed.
* src/pdumper.c (dump_subr, dump_cold_native_subr)
(dump_do_dump_relocation):
* src/comp.h (NATIVE_COMP_FLAG): Remove; no longer needed.
Diffstat (limited to 'src/comp.h')
| -rw-r--r-- | src/comp.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/src/comp.h b/src/comp.h index c4af4193d0b..96bb52a14bc 100644 --- a/src/comp.h +++ b/src/comp.h @@ -20,16 +20,6 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ #ifndef COMP_H #define COMP_H -/* To keep ifdefs under control. */ -enum { - NATIVE_COMP_FLAG = -#ifdef HAVE_NATIVE_COMP - 1 -#else - 0 -#endif -}; - #include <dynlib.h> struct Lisp_Native_Comp_Unit |