Makefile for Linux development tools (below) and makefile for development tools

Makefile for Linux development tools (below) and makefile for development tools
Ii. Makefile (lower) 01. make common embedded function calls $ (function arguments) $ (wildcard PATTERN) files in the current directory that match the PATTERN, such as: src = $ (wildcard *. c) $ (patsubst PATTERN, REPLACEMENT, TEXT) mode REPLACEMENT function example: $ (patsubst %. c, %. o, $ src) is equivalent to $ (src :. c =. o) the shell function executes the color wolf command, for example: $ (shell ls-d */) # lsMakefile02. multi-level directory Makefile # touch main. c # mkdir bll (application logic layer) # mkdir ui (interface layer) # mkdir dal (Data logic layer) # cd ui # touch ui. h ui. c # cd .. # cd dll # touch dal. h dal. c # cd .. # cd bll # touch bll. h bll. C # lsbll dll Makefile ui # vi Makefile (with a level-2 Directory) CC = gccCFLAGS =-Wall-gBIN = mainSUBDIR = $ (shell ls-d */) (all folders in the current directory) ROOTSRC = $ (wildcard *. c) (ALL *. file c) ROOTOBJ = $ (ROOTSRC: %. c = %. o) SUBSRC = $ (shell find $ (SUBDIR)-name '*. c ') SUBOBJ = $ (SUBSRC: %. c = %. o) $ (BIN): $ (ROOTOBJ) $ (SUBOBJ) $ (CC) $ (CFLAGS)-o $ (BIN) $ (ROOTOBJ) $ (SUBOBJ ). c. o: $ (CC) $ (CFLAGS)-o $ <-o $ @ clean: rm-f $ (BIN) $ (ROOTOBJ) $ (SUBOBJ) # ls-d */( List all the folders in the directory) # find bll dll ui-name '*. c' bll/bll. cdll/dll. cui/ui. c # make # makeclean # ls03.Makefile may generate multiple executable files. How to generate only one executable file # vi MakefileSUBDIRS = test1 test2.PHONYL: default all clean $ (SUBDIRS) default: allall clean: $ (MAKE) $ (SUBDIRS) TARGET =$ $ (SUBDIRS): $ (MAKE)-C $ @ $ (TARGET) # cd .. /test1 # vi MakefileCC = gccBIN = test1OBJS = test1.o. PHONY: all clean printall: print $ (BIN) print @ echo "---- make all in $ (PW D) ---- "$ (BIN): $ (OBJS) $ (CC) $ (OBJS)-o $ @ %. o: %. c $ (CC) $ (OBJS)-o $ @ %. o: %. c $ (CC)-c $ <clean: @ echo "---- make clean in $ (PWD) ----" rm-f $ (BIN) $ (OBJS) # cd .. /test2 # ls # vi MakefileCXX = g ++ (implement C ++ compilation) BIN = test2OBJS = test2.oCPPFLAGS =-Wall-g. PHONY: all clean printall: print $ (BIN) @ echo "---- make all in $ (PWD) ----" $ (BIN): $ (OBJS) $ (CXX) $ (OBJS)-o $ @. o: %. cpp $ (CXX)-c $ <clean: @ echo "---- make clean in $ (PWD) ---- "Rm-f $ (BIN) $ (OBJS) If a folder exists in the subdirectory, you can also use the Makefile method similar to the top-level directory to implement multi-level directories and scalable methods.