diff --git a/ots.target.darwin-arm.mk b/ots.target.darwin-arm.mk
index 1ef939e..d1a5f31 100644
--- a/ots.target.darwin-arm.mk
+++ b/ots.target.darwin-arm.mk
@@ -93,6 +93,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
@@ -176,6 +177,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
diff --git a/ots.target.darwin-mips.mk b/ots.target.darwin-mips.mk
index 9481143..2a898f4 100644
--- a/ots.target.darwin-mips.mk
+++ b/ots.target.darwin-mips.mk
@@ -92,6 +92,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
@@ -174,6 +175,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
diff --git a/ots.target.darwin-x86.mk b/ots.target.darwin-x86.mk
index 5e74e67..f9d85aa 100644
--- a/ots.target.darwin-x86.mk
+++ b/ots.target.darwin-x86.mk
@@ -95,6 +95,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
@@ -181,6 +182,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
diff --git a/ots.target.linux-arm.mk b/ots.target.linux-arm.mk
index 1ef939e..d1a5f31 100644
--- a/ots.target.linux-arm.mk
+++ b/ots.target.linux-arm.mk
@@ -93,6 +93,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
@@ -176,6 +177,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
diff --git a/ots.target.linux-mips.mk b/ots.target.linux-mips.mk
index 9481143..2a898f4 100644
--- a/ots.target.linux-mips.mk
+++ b/ots.target.linux-mips.mk
@@ -92,6 +92,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
@@ -174,6 +175,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
diff --git a/ots.target.linux-x86.mk b/ots.target.linux-x86.mk
index 5e74e67..f9d85aa 100644
--- a/ots.target.linux-x86.mk
+++ b/ots.target.linux-x86.mk
@@ -95,6 +95,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
@@ -181,6 +182,7 @@
 	'-D_FILE_OFFSET_BITS=64' \
 	'-DNO_TCMALLOC' \
 	'-DDISABLE_NACL' \
+	'-DV8_DEPRECATION_WARNINGS' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
 	'-DUSE_PROPRIETARY_CODECS' \