How to compile different c files with different CFLAGS using Makefile?

Question

all. Let\'s say I have a program that contains a long list of C source files, A.c, B.c, ...., Z.c, now I want to compile A.c, B.c with certain CFLAGS, and compile the rest p

Answer 1

The approach taken by linux kernel build system:

CFLAGS += $(CFLAGS-$@)

And then,

CFLAGS-A.o += -DEXTRA
CFLAGS-B.o += -DEXTRA