d: Merge upstream dmd 609c3ce2d, phobos 3dd5df686

D front-end changes:

 - Contracts for pre- and postconditions are now implicitly "this"
   const, so that state can no longer be altered in these functions.

 - Inside a constructor scope, assigning to aggregate declaration
   members is done by considering the first assignment as initialization
   and subsequent assignments as modifications of the constructed
   object.  For const/immutable fields the initialization is accepted in
   the constructor but subsequent modifications are not.  However this
   rule did not apply when inside a constructor scope there is a call to
   a different constructor.  This been changed so it is now an error
   when there's a double initialization of immutable fields inside a
   constructor.

Phobos changes:

 - Don't run unit-tests for unsupported clocks in std.datetime.  The
   phobos and phobos_shared tests now add -fversion=Linux_Pre_2639 if
   required.

 - Deprecate public extern(C) bindings for getline and getdelim in
   std.stdio.  The correct module for bindings is core.sys.posix.stdio.

Reviewed-on: https://github.com/dlang/dmd/pull/12153
	     https://github.com/dlang/phobos/pull/7768

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd 609c3ce2d.
	* d-compiler.cc (Compiler::loadModule): Rename to ...
	(Compiler::onParseModule): ... this.
	(Compiler::onImport): New function.
	* d-lang.cc (d_parse_file): Remove call to Compiler::loadModule.

libphobos/ChangeLog:

	* src/MERGE: Merge upstream phobos 3dd5df686.
	* testsuite/libphobos.phobos/phobos.exp: Add compiler flag
	-fversion=Linux_Pre_2639 if target is linux_pre_2639.
	* testsuite/libphobos.phobos_shared/phobos_shared.exp: Likewise.

1 files changed, 24 insertions, 8 deletions

diff --git a/libphobos/src/std/datetime/systime.d b/libphobos/src/std/datetime/systime.d
index 326b544..0b11ed9 100644
--- a/libphobos/src/std/datetime/systime.d
+++ b/libphobos/src/std/datetime/systime.d
@@ -39,6 +39,16 @@ version (unittest)
     initializeTests();
 }
 
+version (unittest) private bool clockSupported(ClockType c)
+{
+    // Skip unsupported clocks on older linux kernels, assume that only
+    // CLOCK_MONOTONIC and CLOCK_REALTIME exist, as that is the lowest
+    // common denominator supported by all versions of Linux pre-2.6.12.
+    version (Linux_Pre_2639)
+        return c == ClockType.normal || c == ClockType.precise;
+    else
+        return true;
+}
 
 /++
     Effectively a namespace to make it clear that the methods it contains are
@@ -95,10 +105,13 @@ public:
         foreach (ct; AliasSeq!(ClockType.coarse, ClockType.precise, ClockType.second))
         {
             scope(failure) writefln("ClockType.%s", ct);
-            auto value1 = Clock.currTime!ct;
-            auto value2 = Clock.currTime!ct(UTC());
-            assert(value1 <= value2, format("%s %s", value1, value2));
-            assert(abs(value1 - value2) <= seconds(2));
+            static if (clockSupported(ct))
+            {
+                auto value1 = Clock.currTime!ct;
+                auto value2 = Clock.currTime!ct(UTC());
+                assert(value1 <= value2, format("%s %s (ClockType: %s)", value1, value2, ct));
+                assert(abs(value1 - value2) <= seconds(2), format("ClockType.%s", ct));
+            }
         }
     }
 
@@ -270,10 +283,13 @@ public:
         foreach (ct; AliasSeq!(ClockType.coarse, ClockType.precise, ClockType.second))
         {
             scope(failure) writefln("ClockType.%s", ct);
-            auto value1 = Clock.currStdTime!ct;
-            auto value2 = Clock.currStdTime!ct;
-            assert(value1 <= value2, format("%s %s", value1, value2));
-            assert(abs(value1 - value2) <= limit);
+            static if (clockSupported(ct))
+            {
+                auto value1 = Clock.currStdTime!ct;
+                auto value2 = Clock.currStdTime!ct;
+                assert(value1 <= value2, format("%s %s (ClockType: %s)", value1, value2, ct));
+                assert(abs(value1 - value2) <= limit);
+            }
         }
     }