Installs wrapper headers and library functions that add common functions missing in various older OSX releases to bring them approximately up to current expected standards.
Three different libraries are provided
- libMacportsLegacySupport.a - A static library with the missing functions for the given OS.
- libMacportsLegacySupport.dylib - A dynamic library with the missing functions for the given OS.
- libMacportsLegacySystem.B.dylib - Similar to libMacportsLegacySupport.dylib but in addition re-exports the symbols from libSystem.B.dylib.
To use this library within MacPorts
add the legacysupport PortGroup to the Portfile. This will add the
required include paths and libraries to allow the library to do its
magic with most build systems.
Wrapped headers and replaced functions are:
| Header File | Feature | Max Version Needing Feature |
|---|---|---|
assert.h |
Adds C11 static_assert definition |
OSX10.10 |
cmath |
Adds the same functions as those provided by the herein math.h,
in namespace std::. |
see math.h |
copyfile.h |
Wraps copyfile_state_get to support COPYFILE_STATE_COPIED |
OSX10.5 |
dirent.h |
Adds fdopendir function.
| OSX10.9 |
os/lock.h |
Adds os_unfair_lock_lock, os_unfair_lock_trylock, and os_unfair_lock_unlock functions |
OSX10.11 |
math.h |
Adds declaration of various long long methods (OSX10.6) and __sincos (macOS10.8) |
OSX10.6(8), GCC 8 |
netdb.h |
Adds declaration of AI_NUMERICSERV |
OSX10.5 |
pthread.h |
Adds PTHREAD_RWLOCK_INITIALIZER |
OSX10.4 |
Adds pthread_setname_np function |
OSX10.5 | |
stdio.h |
Adds dprintf, vdprintf, getline, getdelim,
open_memstream, and fmemopen functions |
OSX10.6, OSX10.12 (open_memstream) |
stdlib.h |
Adds posix_memalign functional replacement |
OSX10.5 |
Wraps realpath to accept a NULL buffer argument |
OSX10.5 | |
Fixes non-POSIX realpath in 10.6 |
OSX10.6 | |
Adds arc4random_uniform and arc4random_buf functions |
OSX10.6 | |
string.h |
Adds stpncpy, strnlen, strndup and memmem functions |
OSX10.6 |
strings.h |
Adds fls,flsl,ffsl(OSX10.4) and flsll,ffsll(macOS10.8) functions |
OSX10.4(8) |
time.h |
Adds functions clock_gettime(macOS10.11) and timespec_get(macOS10.14). Defines TIME_UTC (macOS10.14). Declares asctime_r, ctime_r, gmtime_r, and localtime_r functions that are otherwise hidden in the presence of _ANSI_SOURCE, _POSIX_C_SOURCE, or _XOPEN_SOURCE (OSX10.4) |
OSX10.4(11,14) |
wchar.h |
Adds wcsdup, wcsnlen, wcpcpy,
wcpncpy, wcscasecmp, and wcsncasecmp
functions |
OSX10.6 |
mach/machine.h |
Adds missing machine definitions | OSX10.13 |
net/if.h |
Adds include sys/socket.h, expected on current macOS systems |
OSX10.8 |
xlocale/_wchar.h |
Adds wcscasecmp_l, wcsncasecmp_l functions |
OSX10.6 |
sys/aio.h |
Adjusts includes and defines to match SDK 10.5+ | OSX10.4 |
sys/fcntl.h |
Adds missing O_CLOEXEC, AT_FDCWD, AT_EACCESS,
AT_SYMLINK_NOFOLLOW, AT_SYMLINK_FOLLOW, and
AT_REMOVEDIR definitions |
as required (?) |
Adds openat function |
OSX10.9 | |
sys/fsgetpath.h |
Adds missing utimensat, fsgetpath and setattrlistat functions |
OSX10.12 |
sys/mman.h |
Adds missing MAP_ANONYMOUS definition |
OSX10.10 |
sys/queue.h |
Adds SLIST_HEAD_INITIALIZER macro |
OSX10.4 |
Adds SLIST_REMOVE_AFTER macro |
OSX10.6 | |
Adds STAILQ_FOREACH macro |
OSX10.4 | |
sys/stdio.h |
Adds renameat function |
OSX10.9 |
sys/stat.h |
Adds fchmodat, fstatat,
and mkdirat functions |
OSX10.9 |
Adds lchmod function |
OSX10.4 | |
Adds limited stat64 support |
OSX10.4 | |
sys/random.h |
Adds getentropy function |
OSX10.11 |
sys/socket.h |
Corrects CMSG_DATA definition |
OSX10.5 |
sys/time.h |
Adds lutimes function |
OSX10.4 |
sys/types.h |
Adds definitions for u_char, u_short, u_int, u_long, ushort, and uint types that can be exposed via _DARWIN_C_SOURCE |
OSX10.4 |
sys/unistd.h |
Adds getattrlistat, readlinkat, faccessat,
fchownat, linkat, symlinkat,
unlinkat,
fsetattrlist, and fgetattrlist functions. |
OSX10.9 |
Wraps sysconf to support _SC_NPROCESSORS_CONF and
_SC_NPROCESSORS_ONLN |
OSX10.4 | |
Wraps sysconf to support _SC_PHYS_PAGES |
OSX10.10 | |
uuid/uuid.h |
Adds typedef of uuid_string_t |
OSX10.5 |
CoreFoundation/CoreFoundation.h |
Adds CFPropertyListCreateWithStream function |
OSX10.5 |
OpenGL/gliDispatch.h |
Wraps gliDispatch.h to prevent including
glext.h and thereby match behaviour of newer systems. |
OSX10.6 |
TargetConditionals.h |
Adds definitions for TARGET_CPU_ARM, TARGET_CPU_ARM64,
TARGET_OS_SIMULATOR, TARGET_OS_IOS, TARGET_OS_TV,
TARGET_OS_WATCH and TARGET_OS_OSX if needed. |
OSX10.10 |
- |
Adds __bzero library symbol |
OSX10.5 |
- |
Adds _dirfd library symbol |
OSX10.7 |
- |
Adds _fstatat$INODE64 library symbol |
OSX10.9 |
- |
Provides a workaround for bug in pthread_get_stacksize_np |
OSX10.4, OSX10.5, OSX10.9, OSX10.10 |
For information on building this library outside MacPorts, see BUILDING.txt.