[NaCl SDK] Remove invalid assert from nacl_io.

native_client_sdk/src/tools/host_vc.mk

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 #
 # GNU Make based build file.  For details on GNU Make see:
 #   http://www.gnu.org/software/make/manual/make.html
 #
 
 
 #
 # Macros for TOOLS
 #
 # We use the C++ compiler for everything and then use the -Wl,-as-needed flag
 # in the linker to drop libc++ unless it's actually needed.
 #
 HOST_CC ?= cl.exe /nologo
 HOST_CXX ?= cl.exe /nologo /EHsc
 HOST_LINK ?= link.exe /nologo
 HOST_LIB ?= lib.exe /nologo
 
 ifeq (,$(findstring cl.exe,$(shell $(WHICH) cl.exe)))
 $(warning To skip the host build use:)
 $(warning "make NO_HOST_BUILDS=1")
 $(error Unable to find cl.exe in PATH while building Windows host build)
 endif
 
 
 ifeq ($(CONFIG),Release)
-WIN_OPT_FLAGS ?= /O2 /MT /Z7
+WIN_OPT_FLAGS ?= /O2 /MT /Z7 -DNDEBUG
 else
 WIN_OPT_FLAGS ?= /Od /MTd /Z7 -DNACL_SDK_DEBUG
 endif
 
 WIN_FLAGS ?= -DWIN32 -D_WIN32 -DPTW32_STATIC_LIB
 
 
 #
 # Individual Macros
 #
@@ skipping 82 matching lines @@
 # $1 = Target Name
 # $2 = Input Name
 #
 define STRIP_RULE
 all: $(OUTDIR)/$(1)$(HOST_EXT)
 $(OUTDIR)/$(1)$(HOST_EXT): $(OUTDIR)/$(2)$(HOST_EXT)
         $(call LOG,COPY,$$@,$(CP) $$^ $$@)
 endef
 
 all: $(LIB_LIST) $(DEPS_LIST)