I have a library of common files, included in multiple projects.
When I change a common file, I manually issue "make all" in each directory
that uses one of these files. This is now starting to get out of hand.
I built the following test makefile to descend into those directories and
issue "make all". But I have violated Paul D. Smith's "rule #4" (never
write filenames more than once).
In the makefile shown below, I have targets COURSE1, COURSE2, etc. which
are virtually identical, and I need to create another one each time I add a
new directory. I really want it to be generic. Can someone suggest how to
simplify this makefile? I tried several things, but I need a 2nd pair of
eyeballs.
# Makefile for building the student workbook
COURSE1 =..\..\Java_Programming_Essentials_Eclipse\PT3610
COURSE2 =..\..\Java_Programming_Essentials_RAD\PT3846
COURSE3 =..\..\Java_Programming_Essentials_multiple_IDE\PT3847
COURSE4 =..\..\Java_Programming_Essentials_WSAD512\PT3848
MAKE=make
# This is the default target
.PHONY : help
help :
@echo make java Build all java courses
.PHONY : JAVA
JAVA : COURSE1 COURSE2 COURSE3 COURSE4
# % :: $(COURSEDIR) ; :
.PHONY : COURSE1
COURSE1 : $(COURSE1)
cd ${<} && $(MAKE) all
.PHONY : COURSE2
COURSE2 : $(COURSE2)
cd ${<} && $(MAKE) all
.PHONY : COURSE3
COURSE3 : $(COURSE3)
cd ${<} && $(MAKE) all
.PHONY : COURSE4
COURSE4 : $(COURSE3)
cd ${<} && $(MAKE) all
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