build: Repair the build on WASI platform

Cherry picked from #4934

Author: kateinoigakukun

Package.swift

@@ -3,6 +3,16 @@
 
 import PackageDescription
 
+let platformsWithThreads: [Platform] = [
+    .iOS,
+    .macOS,
+    .tvOS,
+    .watchOS,
+    .macCatalyst,
+    .driverKit,
+    .android,
+    .linux,
+]
 var dispatchIncludeFlags: [CSetting]
 if let environmentPath = Context.environment["DISPATCH_INCLUDE_PATH"] {
     dispatchIncludeFlags = [.unsafeFlags([
@@ -31,8 +41,11 @@ let coreFoundationBuildSettings: [CSetting] = [
     .define("DEPLOYMENT_ENABLE_LIBDISPATCH"),
     .define("DEPLOYMENT_RUNTIME_SWIFT"),
     .define("HAVE_STRUCT_TIMESPEC"),
-    .define("SWIFT_CORELIBS_FOUNDATION_HAS_THREADS"),
+    .define("SWIFT_CORELIBS_FOUNDATION_HAS_THREADS", .when(platforms: platformsWithThreads)),
     .define("_GNU_SOURCE", .when(platforms: [.linux, .android])),
+    .define("_WASI_EMULATED_SIGNAL", .when(platforms: [.wasi])),
+    .define("HAVE_STRLCPY", .when(platforms: [.wasi])),
+    .define("HAVE_STRLCAT", .when(platforms: [.wasi])),
     .unsafeFlags([
         "-Wno-shorten-64-to-32",
         "-Wno-deprecated-declarations",
@@ -61,8 +74,11 @@ let interfaceBuildSettings: [CSetting] = [
     .define("CF_BUILDING_CF"),
     .define("DEPLOYMENT_ENABLE_LIBDISPATCH"),
     .define("HAVE_STRUCT_TIMESPEC"),
-    .define("SWIFT_CORELIBS_FOUNDATION_HAS_THREADS"),
+    .define("SWIFT_CORELIBS_FOUNDATION_HAS_THREADS", .when(platforms: platformsWithThreads)),
     .define("_GNU_SOURCE", .when(platforms: [.linux, .android])),
+    .define("_WASI_EMULATED_SIGNAL", .when(platforms: [.wasi])),
+    .define("HAVE_STRLCPY", .when(platforms: [.wasi])),
+    .define("HAVE_STRLCAT", .when(platforms: [.wasi])),
     .unsafeFlags([
         "-Wno-shorten-64-to-32",
         "-Wno-deprecated-declarations",

Sources/CoreFoundation/CFBundle.c

@@ -596,7 +596,13 @@ static CFBundleRef _CFBundleGetBundleWithIdentifier(CFStringRef bundleID, void *
 
 CFBundleRef CFBundleGetBundleWithIdentifier(CFStringRef bundleID) {
     // Use the frame that called this as a hint
-    return _CFBundleGetBundleWithIdentifier(bundleID, __builtin_return_address(0));
+    void *hint;
+#if TARGET_OS_WASI
+    hint = NULL;
+#else
+    hint = __builtin_frame_address(0);
+#endif
+    return _CFBundleGetBundleWithIdentifier(bundleID, hint);
 }
 
 CFBundleRef _CFBundleGetBundleWithIdentifierWithHint(CFStringRef bundleID, void *pointer) {

Sources/CoreFoundation/CFString.c

@@ -28,7 +28,7 @@
 #include "CFRuntime_Internal.h"
 #include <assert.h>
 #include <_foundation_unicode/uchar.h>
-#if TARGET_OS_MAC || TARGET_OS_WIN32 || TARGET_OS_LINUX || TARGET_OS_BSD
+#if TARGET_OS_MAC || TARGET_OS_WIN32 || TARGET_OS_LINUX || TARGET_OS_BSD || TARGET_OS_WASI
 #include "CFConstantKeys.h"
 #include "CFStringLocalizedFormattingInternal.h"
 #endif