python314-freethreading: fix build on macOS >=10.7 and =<10.12

Co-authored-by: Sergey Fedorov <[email protected]>

Author: aeiouaeiouaeiouaeiouaeiouaeiou

lang/python314/Portfile

@@ -99,8 +99,7 @@ subport python314-freethreading {
                         lock (GIL).
     notes-append "Python with free threading has a different ABI and is thus\
             incompatible with extension modules built for the standard ABI."
-    # task_vm_info.phys_footprint
-    platforms   {darwin >= 15}
+    platforms   {darwin >= 11}
     # Needs stdatomic.h
     compiler.blacklist  {clang < 700}
     set abiflags t
@@ -120,6 +119,10 @@ if {$subport eq $name} {
 }
 
 platform darwin {
+    # task_vm_info.phys_footprint
+    if {${os.major} < 16} {
+        patchfiles-append  patch-gc_free_threading.diff
+    }
     if {${os.major} < 11} {
         configure.args-append   --without-mimalloc
     }

lang/python314/files/patch-gc_free_threading.diff

@@ -0,0 +1,40 @@
+--- Python/gc_free_threading.c	2025-07-23 00:42:44.000000000 +0800
++++ Python/gc_free_threading.c	2025-07-30 14:51:41.000000000 +0800
+@@ -25,8 +25,9 @@
+     #include <unistd.h> // For sysconf, getpid
+ #elif defined(__APPLE__)
+     #include <mach/mach.h>
+-    #include <mach/task.h> // Required for TASK_VM_INFO
++    #include <mach/task.h> // Required for TASK_VM_INFO/TASK_BASIC_INFO
+     #include <unistd.h> // For sysconf, getpid
++    #include <AvailabilityMacros.h>
+ #elif defined(__FreeBSD__)
+     #include <sys/types.h>
+     #include <sys/sysctl.h>
+@@ -1956,6 +1957,7 @@
+ 
+ #elif defined(__APPLE__)
+     // --- MacOS (Darwin) ---
++#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
+     // Returns phys_footprint (RAM + compressed memory)
+     task_vm_info_data_t vm_info;
+     mach_msg_type_number_t count = TASK_VM_INFO_COUNT;
+@@ -1967,7 +1969,18 @@
+     }
+     // phys_footprint is in bytes. Convert to KB.
+     return (Py_ssize_t)(vm_info.phys_footprint / 1024);
++#else
++    task_basic_info_data_t info;
++    mach_msg_type_number_t count = TASK_BASIC_INFO_COUNT;
++    kern_return_t kerr;
+ 
++    kerr = task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)&info, &count);
++    if (kerr != KERN_SUCCESS) {
++        return -1;
++    }
++    // resident_size is in bytes. Convert to KB.
++    return (Py_ssize_t)(info.resident_size / 1024);
++#endif
+ #elif defined(__FreeBSD__)
+     // NOTE: Returns RSS only. Per-process swap usage isn't readily available
+     long page_size_kb = sysconf(_SC_PAGESIZE) / 1024;