Add package architecture constant for x86-64

headers/os/package/PackageArchitecture.h

@@ -14,6 +14,7 @@ enum BPackageArchitecture {
 	B_PACKAGE_ARCHITECTURE_X86		= 1,
 	B_PACKAGE_ARCHITECTURE_X86_GCC2	= 2,
 	B_PACKAGE_ARCHITECTURE_SOURCE	= 3,
+	B_PACKAGE_ARCHITECTURE_X86_64	= 4,
 	//
 	B_PACKAGE_ARCHITECTURE_ENUM_COUNT,
 };

src/kits/package/PackageInfo.cpp

@@ -65,6 +65,7 @@ BPackageInfo::kArchitectureNames[B_PACKAGE_ARCHITECTURE_ENUM_COUNT] = {
 	"x86",
 	"x86_gcc2",
 	"source",
+	"x86_64",
 };