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bpo-41100: Support macOS 11 and Apple Silicon (GH-22855)

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Co-authored-by:  Lawrence D’Anna <lawrence_danna@apple.com>

* Add support for macOS 11 and Apple Silicon (aka arm64)
   
  As a side effect of this work use the system copy of libffi on macOS, and remove the vendored copy

* Support building on recent versions of macOS while deploying to older versions

  This allows building installers on macOS 11 while still supporting macOS 10.9.
This commit is contained in:
Ronald Oussoren 2020-11-08 10:05:27 +01:00 • committed by GitHub
parent fd6f6fa403
commit 41761933c1
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GPG key ID: 4AEE18F83AFDEB23
27 changed files with 1654 additions and 412 deletions
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12
Mac/Tools/pythonw.c
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@ -95,9 +95,6 @@ setup_spawnattr(posix_spawnattr_t* spawnattr)
size_t count;
cpu_type_t cpu_types[1];
short flags = 0;
#ifdef __LP64__
int ch;
#endif
if ((errno = posix_spawnattr_init(spawnattr)) != 0) {
err(2, "posix_spawnattr_int");
@ -119,10 +116,16 @@ setup_spawnattr(posix_spawnattr_t* spawnattr)
#elif defined(__ppc__)
cpu_types[0] = CPU_TYPE_POWERPC;
#elif defined(__i386__)
cpu_types[0] = CPU_TYPE_X86;
#elif defined(__arm64__)
cpu_types[0] = CPU_TYPE_ARM64;
#else
# error "Unknown CPU"
#endif
if (posix_spawnattr_setbinpref_np(spawnattr, count,
@ -220,7 +223,8 @@ main(int argc, char **argv) {
/* We're weak-linking to posix-spawnv to ensure that
* an executable build on 10.5 can work on 10.4.
*/
if (posix_spawn != NULL) {
if (&posix_spawn != NULL) {
posix_spawnattr_t spawnattr = NULL;
setup_spawnattr(&spawnattr);