#
# machine:
#
-# - can define ARCH variable (overriden by cmdline value)
-# - can define CROSS variable (overriden by cmdline value)
-# - define MACHINE_CFLAGS variable (overriden by cmdline value)
-# - define MACHINE_LDFLAGS variable (overriden by cmdline value)
-# - define MACHINE_ASFLAGS variable (overriden by cmdline value)
-# - can define CPU_CFLAGS variable (overriden by cmdline value) that
+# - can define ARCH variable (overridden by cmdline value)
+# - can define CROSS variable (overridden by cmdline value)
+# - define MACHINE_CFLAGS variable (overridden by cmdline value)
+# - define MACHINE_LDFLAGS variable (overridden by cmdline value)
+# - define MACHINE_ASFLAGS variable (overridden by cmdline value)
+# - can define CPU_CFLAGS variable (overridden by cmdline value) that
# overrides the one defined in arch.
-# - can define CPU_LDFLAGS variable (overriden by cmdline value) that
+# - can define CPU_LDFLAGS variable (overridden by cmdline value) that
# overrides the one defined in arch.
-# - can define CPU_ASFLAGS variable (overriden by cmdline value) that
+# - can define CPU_ASFLAGS variable (overridden by cmdline value) that
# overrides the one defined in arch.
# - may override any previously defined variable
#
# CPU_ASFLAGS =
MACHINE_CFLAGS = -march=native
+
+# On FreeBSD systems, sometimes the correct CPU type is not picked up.
+# To get everything to compile, we need SSE4.2 support, so check if that is
+# reported by compiler. If not, check if the CPU actually supports it, and if
+# so, set the compilation target to be a corei7, minimum target with SSE4.2.
+SSE42_SUPPORT=$(shell $(CC) -march=native -dM -E - </dev/null | grep SSE4_2)
+ifeq ($(SSE42_SUPPORT),)
+ MACHINE_CFLAGS = -march=corei7
+endif