Merge "Leave 'linux' defined on x86/x86-64, like arm."
diff --git a/core/64_bit_blacklist.mk b/core/64_bit_blacklist.mk
index 8e5fb80..a237935 100644
--- a/core/64_bit_blacklist.mk
+++ b/core/64_bit_blacklist.mk
@@ -1,11 +1,9 @@
 ifneq ($(TARGET_2ND_ARCH),)
 
-# Chromium/V8: needs 64-bit support
+# chromium-libpac needs porting to the chromium_org V8 instead of legacy V8.
 _64_bit_directory_blacklist += \
 	external/chromium-libpac \
-	external/chromium_org \
 	external/v8 \
-	frameworks/webview \
 
 # misc build errors
 _64_bit_directory_blacklist += \
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index 27304ee..ba03b5d 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -82,7 +82,7 @@
 
 $(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += \
 			$(TARGET_mips_CFLAGS) \
-			-Ulinux -U__unix -U__unix__ -Umips \
+			-U__unix -U__unix__ -Umips \
 			-fpic -fPIE\
 			-ffunction-sections \
 			-fdata-sections \
diff --git a/core/combo/TARGET_linux-mips64.mk b/core/combo/TARGET_linux-mips64.mk
index 36b70ad..969ba10 100644
--- a/core/combo/TARGET_linux-mips64.mk
+++ b/core/combo/TARGET_linux-mips64.mk
@@ -87,7 +87,7 @@
 
 TARGET_GLOBAL_CFLAGS += \
 			$(TARGET_mips_CFLAGS) \
-			-Ulinux -U__unix -U__unix__ -Umips \
+			-U__unix -U__unix__ -Umips \
 			-fpic -fPIE\
 			-ffunction-sections \
 			-fdata-sections \