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| author | Mattias Engdegård <mattiase@acm.org> | 2022-02-10 22:59:26 +0100 |
|---|---|---|
| committer | Mattias Engdegård <mattiase@acm.org> | 2022-02-10 23:06:17 +0100 |
| commit | 26eeca71fbb3ee76ad51d3b83b79992f165e5f06 (patch) | |
| tree | 46a8ec47a90a24412892c793918cb188af18ea61 /src/conf_post.h | |
| parent | 437382734a53e8fb311938d5dd8a39508e60b9bf (diff) | |
| download | emacs-26eeca71fbb3ee76ad51d3b83b79992f165e5f06.tar.gz | |
Silence macOS vfork deprecation warnings
The vfork system call exists and works in macOS 11.6 but the compiler
gives a deprecation message; silence it, because the performance is
still better than that of plain fork. See discussion at
https://lists.gnu.org/archive/html/emacs-devel/2022-02/msg00260.html
* src/conf_post.h (VFORK): New #define.
* src/callproc.c (emacs_spawn):
* src/sysdep.c (sys_subshell): Use it.
Diffstat (limited to 'src/conf_post.h')
| -rw-r--r-- | src/conf_post.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/conf_post.h b/src/conf_post.h index 6db76a2dfad..0b6260b287e 100644 --- a/src/conf_post.h +++ b/src/conf_post.h @@ -353,6 +353,19 @@ extern int emacs_setenv_TZ (char const *); # define vfork fork #endif +/* vfork is deprecated on at least macOS 11.6 and later, but it still works + and is faster than fork, so silence the warning as if we knew what we + are doing. */ +#ifdef DARWIN_OS +#define VFORK() \ + (_Pragma("clang diagnostic push") \ + _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") \ + vfork () \ + _Pragma("clang diagnostic pop")) +#else +#define VFORK() vfork () +#endif + #if ! (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__) # undef PROFILING #endif |