Merge pull request #3007 from WalterBright/posix-system

add @System to posix interface

Author: WalterBright

src/core/sys/posix/config.d

@@ -19,6 +19,7 @@ public import core.stdc.config;
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 enum _XOPEN_SOURCE     = 600;
 enum _POSIX_SOURCE     = true;

src/core/sys/posix/dirent.d

@@ -31,6 +31,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/dlfcn.d

@@ -45,6 +45,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // XOpen (XSI)

src/core/sys/posix/fcntl.d

@@ -49,6 +49,7 @@ extern (C):
 
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/grp.d

@@ -30,6 +30,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/iconv.d

@@ -34,6 +34,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 
 alias void* iconv_t;

src/core/sys/posix/inttypes.d

@@ -19,6 +19,7 @@ public import core.stdc.inttypes;
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/libgen.d

@@ -15,6 +15,7 @@
 module core.sys.posix.libgen;
 
 @nogc nothrow:
+@system:
 extern (C):
 version (Posix):
 

src/core/sys/posix/mqueue.d

@@ -30,6 +30,7 @@ version (Posix):
 version (CRuntime_Glibc):
 extern (C):
 @nogc nothrow:
+@system:
 
 
 /// Message queue descriptor.

src/core/sys/posix/netdb.d

@@ -33,6 +33,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/poll.d

@@ -29,6 +29,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // XOpen (XSI)

src/core/sys/posix/pthread.d

@@ -33,6 +33,7 @@ else version (WatchOS)
 version (Posix):
 extern (C)
 nothrow:
+@system:
 
 //
 // Required

src/core/sys/posix/pwd.d

@@ -30,6 +30,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/sched.d

@@ -32,6 +32,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/semaphore.d

@@ -30,6 +30,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/setjmp.d

@@ -19,6 +19,7 @@ private import core.sys.posix.signal; // for sigset_t
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 version (RISCV32) version = RISCV_Any;
 version (RISCV64) version = RISCV_Any;

src/core/sys/posix/signal.d

@@ -43,7 +43,8 @@ version (X86_64)  version = X86_Any;
 
 version (Posix):
 extern (C):
-//nothrow:  // this causes Issue 12738
+//nothrow:  // this causes http://issues.dlang.org/show_bug.cgi?id=12738 (which has been fixed)
+//@system:
 
 //
 // Required

src/core/sys/posix/spawn.d

@@ -49,6 +49,7 @@ public import core.sys.posix.sched : sched_param;
 extern(C):
 @nogc:
 nothrow:
+@system:
 
 int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t*, int);
 int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t*, int, int);

src/core/sys/posix/stdio.d

@@ -32,6 +32,7 @@ extern (C):
 
 nothrow:
 @nogc:
+@system:
 
 //
 // Required (defined in core.stdc.stdio)

src/core/sys/posix/stdlib.d

@@ -31,6 +31,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required (defined in core.stdc.stdlib)

src/core/sys/posix/string.d

@@ -19,6 +19,7 @@ extern(C):
 @system:
 nothrow:
 @nogc:
+@system:
 
 /// Exposes `locale_t` as defined in `core.sys.posix.locale` (`<locale.h>`)
 public import core.sys.posix.locale : locale_t;

src/core/sys/posix/sys/filio.d

@@ -20,6 +20,7 @@ else version (WatchOS)
 version (Posix):
 
 nothrow @nogc:
+@system:
 
 version (Darwin)
 {

src/core/sys/posix/sys/ioccom.d

@@ -18,6 +18,7 @@ else version (WatchOS)
 version (Posix):
 
 nothrow @nogc:
+@system:
 
 version (Darwin)
 {

src/core/sys/posix/sys/ioctl.d

@@ -29,6 +29,7 @@ else version (WatchOS)
 version (Posix):
 
 extern (C) nothrow @nogc:
+@system:
 
 version (CRuntime_Glibc)
 {

src/core/sys/posix/sys/ipc.d

@@ -28,6 +28,7 @@ else version (WatchOS)
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // XOpen (XSI)

src/core/sys/posix/sys/mman.d

@@ -45,6 +45,7 @@ version (X86_64)  version = X86_Any;
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Advisory Information (ADV)

src/core/sys/posix/sys/msg.d

@@ -14,6 +14,7 @@ import core.stdc.config;
 version (CRuntime_Glibc):
 // Some of these may be from linux kernel headers.
 extern (C):
+@system:
 
 version (ARM)     version = ARM_Any;
 version (AArch64) version = ARM_Any;

src/core/sys/posix/sys/resource.d

@@ -23,6 +23,7 @@ else version (WatchOS)
     version = Darwin;
 
 nothrow @nogc extern(C):
+@system:
 
 //
 // XOpen (XSI)

src/core/sys/posix/sys/select.d

@@ -27,6 +27,7 @@ else version (WatchOS)
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/sys/shm.d

@@ -29,6 +29,7 @@ else version (WatchOS)
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // XOpen (XSI)

src/core/sys/posix/sys/socket.d

@@ -45,6 +45,7 @@ version (X86_64)  version = X86_Any;
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/sys/stat.d

@@ -33,6 +33,7 @@ version (RISCV64) version = RISCV_Any;
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/sys/statvfs.d

@@ -16,6 +16,7 @@ version (Posix):
 extern (C) :
 nothrow:
 @nogc:
+@system:
 
 version (CRuntime_Glibc) {
     static if (__WORDSIZE == 32)

src/core/sys/posix/sys/time.d

@@ -31,6 +31,7 @@ version (linux) public import core.sys.linux.sys.time;
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // XOpen (XSI)

src/core/sys/posix/sys/ttycom.d

@@ -22,6 +22,7 @@ else version (WatchOS)
 version (Posix):
 
 nothrow @nogc:
+@system:
 
 version (Darwin)
 {

src/core/sys/posix/sys/types.d

@@ -30,6 +30,7 @@ else version (WatchOS)
 
 version (Posix):
 extern (C):
+@system:
 
 //
 // bits/typesizes.h -- underlying types for *_t.

src/core/sys/posix/sys/uio.d

@@ -28,6 +28,7 @@ else version (WatchOS)
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/sys/un.d

@@ -25,6 +25,7 @@ else version (WatchOS)
 
 version (Posix):
 extern(C):
+@system:
 
 public import core.sys.posix.sys.socket: sa_family_t;
 

src/core/sys/posix/sys/utsname.d

@@ -16,6 +16,7 @@ version (Posix):
 extern(C):
 nothrow:
 @nogc:
+@system:
 
 version (CRuntime_Glibc)
 {

src/core/sys/posix/sys/wait.d

@@ -30,6 +30,7 @@ else version (WatchOS)
 
 version (Posix):
 extern (C) nothrow @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/syslog.d

@@ -27,6 +27,7 @@ else version (WatchOS)
 version (Posix):
 
 extern (C) nothrow @nogc:
+@system:
 
 version (CRuntime_Glibc)
 {

src/core/sys/posix/termios.d

@@ -31,6 +31,7 @@ extern (C):
 
 nothrow:
 @nogc:
+@system:
 
 //
 // Required

src/core/sys/posix/time.d

@@ -33,6 +33,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required (defined in core.stdc.time)

src/core/sys/posix/ucontext.d

@@ -22,6 +22,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 version (MIPS32)  version = MIPS_Any;
 version (MIPS64)  version = MIPS_Any;

src/core/sys/posix/unistd.d

@@ -32,6 +32,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 enum STDIN_FILENO  = 0;
 enum STDOUT_FILENO = 1;

src/core/sys/posix/utime.d

@@ -30,6 +30,7 @@ version (Posix):
 extern (C):
 nothrow:
 @nogc:
+@system:
 
 //
 // Required