[csw-maintainers] setting *FLAGS?

[Daniel Pocock]

I notice there are many ways people set CXXFLAGS, LDFLAGS, etc from
within mgar Makefiles

Let's say I want to use bdb, I notice several versions are available:

daniel at login [login]:~/opencsw/resiprocate/trunk > ls -d /opt/csw/bdb*
/opt/csw/bdb4
/opt/csw/bdb42
/opt/csw/bdb44
/opt/csw/bdb47
/opt/csw/bdb48

Should I just do something like this?

BDB_HOME = /opt/csw/bdb48
BDB_INC = $(BDB_HOME)/include
BDB_LIB = $(BDB_HOME)/lib

EXTRA_CFLAGS += -I$(BDB_INC)
EXTRA_CXXFLAGS += -I$(BDB_INC)
EXTRA_LINKER_FLAGS += -L$(BDB_LIB)

Or should I set LDFLAGS directly?

LDFLAGS += -L$(BDB_LIB)

or something completely different?