stdlib: tweak import declarations

stdlib/public/SDK/Darwin/Misc.mm

@@ -13,6 +13,9 @@
 #include <fcntl.h>
 #include <semaphore.h>
 
+#define _REENTRANT
+#include <math.h>
+
 extern "C" int 
 _swift_Darwin_open(const char *path, int oflag, mode_t mode) {
   return open(path, oflag, mode);
@@ -42,3 +45,17 @@
   return fcntl(fd, cmd, ptr);
 }
 
+extern "C" float
+_swift_Darwin_lgammaf_r(float x, int *psigngam) {
+  return lgammaf_r(x, psigngam);
+}
+
+extern "C" double
+_swift_Darwin_lgamma_r(double x, int *psigngam) {
+  return lgamma_r(x, psigngam);
+}
+
+extern "C" long double
+_swift_Darwin_lgammal_r(long double x, int *psigngam) {
+  return lgammal_r(x, psigngam);
+}

stdlib/public/SDK/Darwin/tgmath.swift.gyb

@@ -259,9 +259,10 @@ public func scalbn(x: ${T}, _ n: Int) -> ${T} {
 % for T, CT, f in AllFloatTypes():
 % # The real lgamma_r is not imported because it hides behind macro _REENTRANT.
 @warn_unused_result
-@_silgen_name("lgamma${f}_r") 
+@_silgen_name("_swift_Darwin_lgamma${f}_r")
 func _swift_Darwin_lgamma${f}_r(_: ${CT},
                                 _: UnsafeMutablePointer<CInt>) -> ${CT}
+
 @_transparent
 @warn_unused_result
 public func lgamma(x: ${T}) -> (${T}, Int) {

stdlib/public/SDK/ObjectiveC/CMakeLists.txt

@@ -1,4 +1,5 @@
 add_swift_library(swiftObjectiveC IS_SDK_OVERLAY
+  ObjectiveC.mm
   ObjectiveC.swift
   SWIFT_MODULE_DEPENDS Darwin)
 

stdlib/public/SDK/ObjectiveC/ObjectiveC.mm

@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See http://swift.org/LICENSE.txt for license information
+// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+
+#include <objc/objc-api.h>
+
+OBJC_EXPORT
+void *objc_autoreleasePoolPush(void);
+
+OBJC_EXPORT
+void objc_autoreleasePoolPop(void *);
+
+extern "C" void *_swift_objc_autoreleasePoolPush(void) {
+  return objc_autoreleasePoolPush();
+}
+
+extern "C" void _swift_objc_autoreleasePoolPop(void *context) {
+  return objc_autoreleasePoolPop(context);
+}
+

stdlib/public/SDK/ObjectiveC/ObjectiveC.swift

@@ -196,10 +196,10 @@ typealias Zone = NSZone
 //===----------------------------------------------------------------------===//
 
 @warn_unused_result
-@_silgen_name("objc_autoreleasePoolPush")
+@_silgen_name("_swift_objc_autoreleasePoolPush")
 func __pushAutoreleasePool() -> OpaquePointer
 
-@_silgen_name("objc_autoreleasePoolPop")
+@_silgen_name("_swift_objc_autoreleasePoolPop")
 func __popAutoreleasePool(pool: OpaquePointer)
 
 public func autoreleasepool(@noescape code: () -> Void) {