--- builds/posix/prefix.freebsd	2021-05-29 10:05:05.000000000 -0500
+++ builds/posix/prefix.freebsd	2021-06-25 23:06:32.268522000 -0500
@@ -20,5 +20,14 @@
 
 EXE_LINK_OPTIONS+=-Wl,-rpath,../gen/firebird/lib
 
-PROD_FLAGS=-O -fno-builtin -DFREEBSD -pipe -MMD -fPIC
-DEV_FLAGS=-ggdb -DFREEBSD -pipe -MMD -p -fPIC -Wall -Wno-non-virtual-dtor
+COMMON_FLAGS=-DFREEBSD -pipe -MMD -fPIC
+PROD_FLAGS=$(COMMON_FLAGS) -O0 -g -fno-builtin -Wno-deprecated
+DEV_FLAGS=$(COMMON_FLAGS) -ggdb -p -Wall -Wno-non-virtual-dtor
+
+# This file must be compiled with SSE4.2 support
+%/CRC32C.o: COMMON_FLAGS += -msse4
+
+# These files are generated incorrectly (e.g. array.epp => array.cpp)
+%/array.o %/blob.o %/alice_meta.o %/restore.o %/backup.o: COMMON_FLAGS += -Wno-narrowing
+%/OdsDetection.o %/dba.o: COMMON_FLAGS += -Wno-narrowing
+