From: "kimuraw (Wataru Kimura)" <noreply@...>
Date: 2022-06-26T13:19:31+00:00
Subject: [ruby-core:109053] [Ruby master Bug#18879] missing linker flag "-framework Security" for macOS 10.7 .. 10.9

Issue #18879 has been reported by kimuraw (Wataru Kimura).

----------------------------------------
Bug #18879: missing linker flag "-framework Security" for macOS 10.7 .. 10.9
https://bugs.ruby-lang.org/issues/18879

* Author: kimuraw (Wataru Kimura)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-darwin13]
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN
----------------------------------------
it looks target OS version detection in ./configure fails. (10.7 <= ver < 10.10)

macOS's AvailabilityMacros.h does not contain macros for future versions.
a version number to compare with "MAC_OS_X_VERSION_MIN_REQUIRED" should be a numeric literal, not a macro.

- MAC_OS_X_VERSION_10_7 => 1070
- MAC_OS_X_VERSION_10_10 => 101000

dln.c has same issue.

```
$ sw_vers -productVersion
10.9.5
$ uname -r 
13.4.0
$ cat conftest.c 
/* end confdefs.h.  */

            #include <AvailabilityMacros.h>
int
main ()
{
static int test_array [1 - 2 * !(MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_7 &&
                 MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_10)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
$ cc -c conftest.c 
conftest.c:8:50: error: use of undeclared identifier 'MAC_OS_X_VERSION_10_10'
                 MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_10)];
                                                 ^
1 error generated.
```



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