Merge branch 'es/squelch-openssl-warnings-on-macosx' into maint

An earlier workaround to squelch unhelpful deprecation warnings
from the complier on Mac OSX unnecessarily set minimum required
version of the OS, which the user might want to raise (or lower)
for other reasons.

* es/squelch-openssl-warnings-on-macosx:
git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIRED

diff --combined git-compat-util.h
index 553fc017623be771878778c84aca08a4684f6902,46563326f098818b83abec871c02898cba6b8c6a..2ce96d5cb78120a050bb36e2501c97f25e051148
--- 1/git-compat-util.h
--- 2/git-compat-util.h
+++ b/git-compat-util.h
@@@ -75,8 -75,7 +75,8 @@@
  # endif
  #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
        !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \
 -      !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__)
 +      !defined(__TANDEM) && !defined(__QNX__) && !defined(__MirBSD__) && \
 +      !defined(__CYGWIN__)
  #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
  #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
  #endif
@@@ -212,15 -211,15 +212,18 @@@ extern char *gitbasename(char *)
  #endif
  
  #ifndef NO_OPENSSL
+ #ifdef __APPLE__
  #define __AVAILABILITY_MACROS_USES_AVAILABILITY 0
- #define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
+ #include <AvailabilityMacros.h>
+ #undef DEPRECATED_ATTRIBUTE
+ #define DEPRECATED_ATTRIBUTE
+ #undef __AVAILABILITY_MACROS_USES_AVAILABILITY
+ #endif
  #include <openssl/ssl.h>
  #include <openssl/err.h>
- #undef MAC_OS_X_VERSION_MIN_REQUIRED
- #undef __AVAILABILITY_MACROS_USES_AVAILABILITY
 +#ifdef NO_HMAC_CTX_CLEANUP
 +#define HMAC_CTX_cleanup HMAC_cleanup
 +#endif
  #endif
  
  /* On most systems <netdb.h> would have given us this, but
@@@ -482,40 -481,6 +485,40 @@@ extern int git_munmap(void *start, size
  #define on_disk_bytes(st) ((st).st_blocks * 512)
  #endif
  
 +#ifdef NEEDS_MODE_TRANSLATION
 +#undef S_IFMT
 +#undef S_IFREG
 +#undef S_IFDIR
 +#undef S_IFLNK
 +#undef S_IFBLK
 +#undef S_IFCHR
 +#undef S_IFIFO
 +#undef S_IFSOCK
 +#define S_IFMT   0170000
 +#define S_IFREG  0100000
 +#define S_IFDIR  0040000
 +#define S_IFLNK  0120000
 +#define S_IFBLK  0060000
 +#define S_IFCHR  0020000
 +#define S_IFIFO  0010000
 +#define S_IFSOCK 0140000
 +#ifdef stat
 +#undef stat
 +#endif
 +#define stat(path, buf) git_stat(path, buf)
 +extern int git_stat(const char *, struct stat *);
 +#ifdef fstat
 +#undef fstat
 +#endif
 +#define fstat(fd, buf) git_fstat(fd, buf)
 +extern int git_fstat(int, struct stat *);
 +#ifdef lstat
 +#undef lstat
 +#endif
 +#define lstat(path, buf) git_lstat(path, buf)
 +extern int git_lstat(const char *, struct stat *);
 +#endif
 +
  #define DEFAULT_PACKED_GIT_LIMIT \
        ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
  
@@@ -678,11 -643,6 +681,11 @@@ extern char *xgetcwd(void)
  
  #define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), (alloc) * sizeof(*(x)))
  
 +static inline char *xstrdup_or_null(const char *str)
 +{
 +      return str ? xstrdup(str) : NULL;
 +}
 +
  static inline size_t xsize_t(off_t len)
  {
        if (len > (size_t) len)