diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index 405761c..2dcc965 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -77,7 +77,10 @@
 LOCAL_SRC_FILES := $(commonSources) $(commonHostSources) dlmalloc_stubs.c
 LOCAL_LDLIBS := -lpthread
 LOCAL_STATIC_LIBRARIES := liblog
-LOCAL_CFLAGS += $(hostSmpFlag) -Werror
+LOCAL_CFLAGS += $(hostSmpFlag)
+ifneq ($(HOST_OS),windows)
+LOCAL_CFLAGS += -Werror
+endif
 include $(BUILD_HOST_STATIC_LIBRARY)
 
 
@@ -88,14 +91,20 @@
 LOCAL_SRC_FILES := $(commonSources) $(commonHostSources) dlmalloc_stubs.c
 LOCAL_LDLIBS := -lpthread
 LOCAL_STATIC_LIBRARIES := lib64log
-LOCAL_CFLAGS += $(hostSmpFlag) -m64 -Werror
+LOCAL_CFLAGS += $(hostSmpFlag) -m64
+ifneq ($(HOST_OS),windows)
+LOCAL_CFLAGS += -Werror
+endif
 include $(BUILD_HOST_STATIC_LIBRARY)
 
 # Tests for host
 # ========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := tst_str_parms
-LOCAL_CFLAGS += -DTEST_STR_PARMS -Werror
+LOCAL_CFLAGS += -DTEST_STR_PARMS
+ifneq ($(HOST_OS),windows)
+LOCAL_CFLAGS += -Werror
+endif
 LOCAL_SRC_FILES := str_parms.c hashmap.c memory.c
 LOCAL_STATIC_LIBRARIES := liblog
 LOCAL_MODULE_TAGS := optional
diff --git a/libcutils/socket_inaddr_any_server.c b/libcutils/socket_inaddr_any_server.c
index f70d56b..6c849de 100644
--- a/libcutils/socket_inaddr_any_server.c
+++ b/libcutils/socket_inaddr_any_server.c
@@ -46,7 +46,7 @@
     if(s < 0) return -1;
 
     n = 1;
-    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n));
+    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char *) &n, sizeof(n));
 
     if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
         close(s);
diff --git a/libcutils/socket_loopback_server.c b/libcutils/socket_loopback_server.c
index 5175e9c..71afce7 100644
--- a/libcutils/socket_loopback_server.c
+++ b/libcutils/socket_loopback_server.c
@@ -46,7 +46,7 @@
     if(s < 0) return -1;
 
     n = 1;
-    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n));
+    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char *) &n, sizeof(n));
 
     if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
         close(s);