diff --git a/CleanSpec.mk b/CleanSpec.mk
index 020de69..3e5d199 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -305,6 +305,11 @@
 # Move to libc++ as the default STL.
 $(call add-clean-step, rm -rf $(OUT_DIR))
 
+# dex2oat instruction-set changes
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/default.prop)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/default.prop)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/combo/HOST_linux-x86.mk b/core/combo/HOST_linux-x86.mk
index 09cf271..93a1287 100644
--- a/core/combo/HOST_linux-x86.mk
+++ b/core/combo/HOST_linux-x86.mk
@@ -18,14 +18,14 @@
 # Included by combo/select.mk
 
 ifeq ($(strip $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX)),)
-$(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/bin/x86_64-linux-
+$(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/bin/x86_64-linux-
 endif
 $(combo_2nd_arch_prefix)HOST_CC  := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX)gcc
 $(combo_2nd_arch_prefix)HOST_CXX := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX)g++
 $(combo_2nd_arch_prefix)HOST_AR  := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX)ar
 
 # gcc location for clang; to be updated when clang is updated
-$(combo_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/
+$(combo_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/
 
 # We expect SSE3 floating point math.
 $(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -msse3 -mfpmath=sse -m32 -Wa,--noexecstack -march=prescott
@@ -40,7 +40,7 @@
   -no-canonical-prefixes \
   -include $(call select-android-config-h,linux-x86)
 
-# Disable new longjmp in glibc 2.11 and later. See bug 2967937.
+# Disable new longjmp in glibc 2.11 and later. See bug 2967937. Same for 2.15?
 $(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
 
 # Workaround differences in inttypes.h between host and target.
diff --git a/core/combo/HOST_linux-x86_64.mk b/core/combo/HOST_linux-x86_64.mk
index 86877b3..3685712 100644
--- a/core/combo/HOST_linux-x86_64.mk
+++ b/core/combo/HOST_linux-x86_64.mk
@@ -18,14 +18,14 @@
 # Included by combo/select.mk
 
 ifeq ($(strip $(HOST_TOOLCHAIN_PREFIX)),)
-HOST_TOOLCHAIN_PREFIX := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/bin/x86_64-linux-
+HOST_TOOLCHAIN_PREFIX := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/bin/x86_64-linux-
 endif
 HOST_CC  := $(HOST_TOOLCHAIN_PREFIX)gcc
 HOST_CXX := $(HOST_TOOLCHAIN_PREFIX)g++
 HOST_AR  := $(HOST_TOOLCHAIN_PREFIX)ar
 
 # gcc location for clang; to be updated when clang is updated
-HOST_TOOLCHAIN_FOR_CLANG := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/
+HOST_TOOLCHAIN_FOR_CLANG := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/
 
 HOST_GLOBAL_CFLAGS += -m64 -Wa,--noexecstack
 HOST_GLOBAL_LDFLAGS += -m64 -Wl,-z,noexecstack
@@ -40,7 +40,7 @@
   -no-canonical-prefixes \
   -include $(call select-android-config-h,linux-x86)
 
-# Disable new longjmp in glibc 2.11 and later. See bug 2967937.
+# Disable new longjmp in glibc 2.11 and later. See bug 2967937. Same for 2.15?
 HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
 
 # Workaround differences in inttypes.h between host and target.
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 9472306..dc0dca8 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -136,6 +136,7 @@
 			-Wl,--warn-shared-textrel \
 			-Wl,--fatal-warnings \
 			-Wl,--icf=safe \
+			-Wl,--hash-style=gnu \
 			$(arch_variant_ldflags)
 
 $(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -mthumb-interwork
diff --git a/core/combo/TARGET_linux-arm64.mk b/core/combo/TARGET_linux-arm64.mk
index 7c44366..2778e73 100644
--- a/core/combo/TARGET_linux-arm64.mk
+++ b/core/combo/TARGET_linux-arm64.mk
@@ -111,6 +111,7 @@
 			-Wl,--warn-shared-textrel \
 			-Wl,--fatal-warnings \
 			-Wl,-maarch64linux \
+			-Wl,--hash-style=gnu \
 			$(arch_variant_ldflags)
 
 TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index 2c29815..f351673 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -125,6 +125,7 @@
 $(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel
 $(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += -Wl,--fatal-warnings
 $(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections
+$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += -Wl,--hash-style=gnu
 
 $(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \
 	$(libc_root)/arch-x86/include \
diff --git a/core/combo/TARGET_linux-x86_64.mk b/core/combo/TARGET_linux-x86_64.mk
index 997ee51..641c79e 100644
--- a/core/combo/TARGET_linux-x86_64.mk
+++ b/core/combo/TARGET_linux-x86_64.mk
@@ -130,6 +130,7 @@
 TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel
 TARGET_GLOBAL_LDFLAGS += -Wl,--fatal-warnings
 TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections
+TARGET_GLOBAL_LDFLAGS += -Wl,--hash-style=gnu
 
 TARGET_C_INCLUDES := \
 	$(libc_root)/arch-x86_64/include \
diff --git a/core/combo/include/arch/darwin-x86/AndroidConfig.h b/core/combo/include/arch/darwin-x86/AndroidConfig.h
index 73f5337..66963bc 100644
--- a/core/combo/include/arch/darwin-x86/AndroidConfig.h
+++ b/core/combo/include/arch/darwin-x86/AndroidConfig.h
@@ -42,22 +42,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H
@@ -79,11 +63,6 @@
 #define HAVE_SYMLINKS
 
 /*
- * Define this if we have localtime_r().
- */
-#define HAVE_LOCALTIME_R 1
-
-/*
  * Endianness of the target machine.  Choose one:
  *
  * HAVE_ENDIAN_H -- have endian.h header we can include.
diff --git a/core/combo/include/arch/linux-arm/AndroidConfig.h b/core/combo/include/arch/linux-arm/AndroidConfig.h
index 1ca3730..392c94d 100644
--- a/core/combo/include/arch/linux-arm/AndroidConfig.h
+++ b/core/combo/include/arch/linux-arm/AndroidConfig.h
@@ -42,22 +42,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H 1
diff --git a/core/combo/include/arch/linux-arm64/AndroidConfig.h b/core/combo/include/arch/linux-arm64/AndroidConfig.h
index 99bf74d..23143cd 100644
--- a/core/combo/include/arch/linux-arm64/AndroidConfig.h
+++ b/core/combo/include/arch/linux-arm64/AndroidConfig.h
@@ -42,22 +42,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H 1
diff --git a/core/combo/include/arch/linux-mips/AndroidConfig.h b/core/combo/include/arch/linux-mips/AndroidConfig.h
index da45929..7f11d5b 100644
--- a/core/combo/include/arch/linux-mips/AndroidConfig.h
+++ b/core/combo/include/arch/linux-mips/AndroidConfig.h
@@ -42,22 +42,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H 1
@@ -79,16 +63,6 @@
 #define HAVE_SYMLINKS
 
 /*
- * Define this if we have localtime_r().
- */
-/* #define HAVE_LOCALTIME_R */
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
  * Define this if we want to use WinSock.
  */
 /* #define HAVE_WINSOCK */
@@ -158,11 +132,6 @@
 #define ARCH_MIPS 1
 
 /*
- * Define if the size of enums is as short as possible,
- */
-/* #define HAVE_SHORT_ENUMS */
-
-/*
  * sprintf() format string for shared library naming.
  */
 #define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
diff --git a/core/combo/include/arch/linux-mips64/AndroidConfig.h b/core/combo/include/arch/linux-mips64/AndroidConfig.h
index 3225afd..2fffdfc 100644
--- a/core/combo/include/arch/linux-mips64/AndroidConfig.h
+++ b/core/combo/include/arch/linux-mips64/AndroidConfig.h
@@ -42,22 +42,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H 1
@@ -79,16 +63,6 @@
 #define HAVE_SYMLINKS
 
 /*
- * Define this if we have localtime_r().
- */
-/* #define HAVE_LOCALTIME_R */
-
-/*
- * Define this if we have gethostbyname_r().
- */
-/* #define HAVE_GETHOSTBYNAME_R */
-
-/*
  * Define this if we want to use WinSock.
  */
 /* #define HAVE_WINSOCK */
@@ -148,11 +122,6 @@
 #define ARCH_MIPS64 1
 
 /*
- * Define if the size of enums is as short as possible,
- */
-/* #define HAVE_SHORT_ENUMS */
-
-/*
  * sprintf() format string for shared library naming.
  */
 #define OS_SHARED_LIB_FORMAT_STR    "lib%s.so"
diff --git a/core/combo/include/arch/linux-x86/AndroidConfig.h b/core/combo/include/arch/linux-x86/AndroidConfig.h
index 38f289c..9829de0 100644
--- a/core/combo/include/arch/linux-x86/AndroidConfig.h
+++ b/core/combo/include/arch/linux-x86/AndroidConfig.h
@@ -42,22 +42,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H 1
@@ -74,16 +58,6 @@
 #define HAVE_SYMLINKS
 
 /*
- * Define this if we have localtime_r().
- */
-#define HAVE_LOCALTIME_R 1
-
-/*
- * Define this if we have gethostbyname_r().
- */
-#define HAVE_GETHOSTBYNAME_R
-
-/*
  * Define this if have clock_gettime() and friends
  */
 #define HAVE_POSIX_CLOCKS
diff --git a/core/combo/include/arch/target_linux-x86/AndroidConfig.h b/core/combo/include/arch/target_linux-x86/AndroidConfig.h
index 690bb43..8191327 100644
--- a/core/combo/include/arch/target_linux-x86/AndroidConfig.h
+++ b/core/combo/include/arch/target_linux-x86/AndroidConfig.h
@@ -28,22 +28,6 @@
 #define HAVE_PTHREADS
 
 /*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#define HAVE_FORKEXEC
-
-/*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#define  HAVE_POSIX_FILEMAP 1
-
-/*
  * Define this if you have <termio.h>
  */
 #define  HAVE_TERMIO_H 1
diff --git a/core/combo/include/arch/windows/AndroidConfig.h b/core/combo/include/arch/windows/AndroidConfig.h
index e9964a3..2ebbf58 100644
--- a/core/combo/include/arch/windows/AndroidConfig.h
+++ b/core/combo/include/arch/windows/AndroidConfig.h
@@ -63,34 +63,10 @@
  */
 #define HAVE_WIN32_THREADS
 
-/*
- * Process creation model.  Choose one:
- *
- * HAVE_FORKEXEC - use fork() and exec()
- * HAVE_WIN32_PROC - use CreateProcess()
- */
-#ifdef __CYGWIN__
-#  define HAVE_FORKEXEC
-#else
-#  define HAVE_WIN32_PROC
-#endif
-
 /* TODO: replace references to this. */
 #define HAVE_WIN32_IPC
 
 /*
- * Memory-mapping model. Choose one:
- *
- * HAVE_POSIX_FILEMAP - use the Posix sys/mmap.h
- * HAVE_WIN32_FILEMAP - use Win32 filemaps
- */
-#ifdef __CYGWIN__
-#define  HAVE_POSIX_FILEMAP
-#else
-#define  HAVE_WIN32_FILEMAP
-#endif
-
-/*
  * Define this if you have <termio.h>
  */
 #ifdef __CYGWIN__
diff --git a/core/config.mk b/core/config.mk
index 91de57c..a651f29 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -541,17 +541,11 @@
 DEX2OAT_TARGET_ARCH := $(TARGET_ARCH)
 DEX2OAT_TARGET_CPU_VARIANT := $(TARGET_CPU_VARIANT)
 DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := default
-ifneq (,$(filter $(DEX2OAT_TARGET_CPU_VARIANT),cortex-a7 cortex-a15 krait denver))
-  DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := lpae,div
-endif
 
 ifdef TARGET_2ND_ARCH
 $(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH := $(TARGET_2ND_ARCH)
 $(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT := $(TARGET_2ND_CPU_VARIANT)
 $(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := default
-ifneq (,$(filter $($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT),cortex-a7 cortex-a15 krait denver))
-  $(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES := lpae,div
-endif
 endif
 
 # define clang/llvm tools and global flags
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index b61b180..d064e8c 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -97,6 +97,7 @@
 	--oat-file=$(2) \
 	--android-root=$(PRODUCT_OUT)/system \
 	--instruction-set=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH) \
+	--instruction-set-variant=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT) \
 	--instruction-set-features=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES) \
 	--include-patch-information --runtime-arg -Xnorelocate --no-include-debug-symbols \
 	$(PRIVATE_DEX_PREOPT_FLAGS)
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index 90a3b5a..49b6680 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -52,6 +52,7 @@
 		--oat-location=$(patsubst %.art,%.oat,$($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_BOOT_IMAGE_FILENAME)) \
 		--image=$@ --base=$(LIBART_IMG_TARGET_BASE_ADDRESS) \
 		--instruction-set=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH) \
+		--instruction-set-variant=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT) \
 		--instruction-set-features=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES) \
 		--android-root=$(PRODUCT_OUT)/system --include-patch-information --runtime-arg -Xnorelocate --no-include-debug-symbols \
 		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS)
diff --git a/core/main.mk b/core/main.mk
index 4234b30..7f4b217 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -305,9 +305,18 @@
 is_sdk_build := true
 endif
 
-ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.isa.$(TARGET_ARCH).features=$(DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES)
+# Add build properties for ART. These define system properties used by installd
+# to pass flags to dex2oat.
+ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.isa.$(TARGET_ARCH).variant=$(DEX2OAT_TARGET_CPU_VARIANT)
+ifneq ($(DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES),)
+  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.isa.$(TARGET_ARCH).features=$(DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES)
+endif
+
 ifdef TARGET_2ND_ARCH
-ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.isa.$(TARGET_2ND_ARCH).features=$($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES)
+  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.isa.$(TARGET_2ND_ARCH).variant=$($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT)
+  ifneq ($($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES),)
+    ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.isa.$(TARGET_2ND_ARCH).features=$($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES)
+  endif
 endif
 
 ## user/userdebug ##
diff --git a/tools/zipalign/ZipEntry.cpp b/tools/zipalign/ZipEntry.cpp
index d4d366d..b2270cb 100644
--- a/tools/zipalign/ZipEntry.cpp
+++ b/tools/zipalign/ZipEntry.cpp
@@ -356,7 +356,7 @@
  */
 void ZipEntry::setModWhen(time_t when)
 {
-#ifdef HAVE_LOCALTIME_R
+#if !defined(_WIN32)
     struct tm tmResult;
 #endif
     time_t even;
@@ -368,7 +368,7 @@
     even = (time_t)(((unsigned long)(when) + 1) & (~1));
 
     /* expand */
-#ifdef HAVE_LOCALTIME_R
+#if !defined(_WIN32)
     ptm = localtime_r(&even, &tmResult);
 #else
     ptm = localtime(&even);