[watchOS][targets] Add support for 32bit Apple Watch.

konan/konan.properties

@@ -161,7 +161,6 @@ target-sysroot-9-tvos_x64.default = \
   remote:internal
 
 arch.tvos_x64 = x86_64
-entrySelector.tvos_x64 = -alias _Konan_main _main
 targetSysRoot.tvos_x64 = target-sysroot-9-tvos_x64
 
 clangFlags.tvos_x64 = -cc1 -emit-obj -disable-llvm-passes -x ir
@@ -188,7 +187,6 @@ target-sysroot-9-tvos_arm64.default = \
   remote:internal
 
 arch.tvos_arm64 = arm64
-entrySelector.tvos_arm64 = -alias _Konan_main _main
 targetSysRoot.tvos_arm64 = target-sysroot-9-tvos_arm64
 
 clangFlags.tvos_arm64 = -cc1 -emit-obj -disable-llvm-passes -x ir
@@ -205,6 +203,58 @@ osVersionMinFlagLd.tvos_arm64 = -tvos_version_min
 osVersionMinFlagClang.tvos_arm64 = -mtvos-version-min
 osVersionMin.tvos_arm64 = 9.0
 
+# watchOS armv7k
+targetToolchain.macos_x64-watchos_arm32 = target-toolchain-9-macos_x64
+dependencies.macos_x64-watchos_arm32 = \
+  libffi-3.2.1-3-darwin-macos \
+  clang-llvm-6.0.1-darwin-macos
+
+target-sysroot-9-watchos_arm32.default = \
+  remote:internal
+
+arch.watchos_arm32 = armv7k
+targetSysRoot.watchos_arm32 = target-sysroot-9-watchos_arm32
+
+clangFlags.watchos_arm32 = -cc1 -emit-obj -disable-llvm-passes -x ir
+clangNooptFlags.watchos_arm32 = -O1
+clangOptFlags.watchos_arm32 = -O3
+clangDebugFlags.watchos_arm32 = -O0
+clangDynamicFlags.watchos_arm32 =
+
+linkerKonanFlags.watchos_arm32 = -lSystem -lc++ -lobjc -framework Foundation -sdk_version 5.0
+linkerOptimizationFlags.watchos_arm32 = -dead_strip
+linkerNoDebugFlags.watchos_arm32 = -S
+linkerDynamicFlags.watchos_arm32 = -dylib
+osVersionMinFlagLd.watchos_arm32 = -watchos_version_min
+osVersionMinFlagClang.watchos_arm32 = -mwatchos-version-min
+osVersionMin.watchos_arm32 = 5.0
+
+#  Apple's watchOS i386 simulator.
+targetToolchain.macos_x64-watchos_x86 = target-toolchain-9-macos_x64
+dependencies.macos_x64-watchos_x86 = \
+  libffi-3.2.1-3-darwin-macos \
+  clang-llvm-6.0.1-darwin-macos
+
+target-sysroot-9-watchos_x86.default = \
+  remote:internal
+
+arch.watchos_x86 = i386
+targetSysRoot.watchos_x86 = target-sysroot-9-watchos_x86
+
+clangFlags.watchos_x86 = -cc1 -emit-obj -disable-llvm-passes -x ir
+clangNooptFlags.watchos_x86 = -O1
+clangOptFlags.watchos_x86 = -O3
+clangDebugFlags.watchos_x86 = -O0
+clangDynamicFlags.watchos_x86 =
+
+linkerKonanFlags.watchos_x86 = -lSystem -lc++ -lobjc -framework Foundation -sdk_version 5.0
+linkerOptimizationFlags.watchos_x86 = -dead_strip
+linkerNoDebugFlags.watchos_x86 = -S
+linkerDynamicFlags.watchos_x86 = -dylib
+osVersionMinFlagLd.watchos_x86 = -watchos_simulator_version_min
+osVersionMinFlagClang.watchos_x86 = -mwatchos-simulator-version-min
+osVersionMin.watchos_x86 = 5.0
+
 # Linux x86-64.
 llvmHome.linux_x64 = clang-llvm-6.0.1-linux-x86-64
 libffiDir.linux_x64 = libffi-3.2.1-2-linux-x86-64