On 12/02/2019 19:33, Uwe Kleine-König wrote: > Debian build scripts pass CFLAGS in the environment. To honor these only set > CFLAGS to "-O2 -g" if CFLAGS is unset. The warnings in the following line > are added unconditionally. This makes sparse builds reproducible. > > Signed-off-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx> > > --- a/Makefile > +++ b/Makefile > @@ -6,7 +6,7 @@ > > > CC = gcc-8 > -CFLAGS = -O2 -g > +CFLAGS ?= -O2 -g > CFLAGS += -Wall -Wwrite-strings > LD = $(CC) > LDFLAGS += -Wl,--as-needed > What version of Makefile is this? It does not apply to the 'master' branch. For example 'CC = gcc-8' and 'LDFLAGS += -Wl,--as-needed' don't appear master:Makefile. Otherwise, this does indeed make setting CFLAGS in the environment easier and doesn't make setting it on the command-line any worse, so ... ATB, Ramsay Jones