confDEPEND_TYPE

confDEPEND_TYPE

---

How to build Makefile dependencies

Build macro

The confDEPEND_TYPE macro defines the method that should be included in your Makefile for use in creating make (1) dependencies. The methods supported are located in the devtools/M4/depend directory. We show them in Table 2-6.

Table 2-6. Build m4 directives

Method	File	How invoked
AIX	devtools/M4/depend/AIX.m4	${CC} -M -E ${COPTS} $$i
BSD	devtools/M4/depend/BSD.m4	mkdep -a -f Makefile ${COPTS} *.c
CC-M	devtools/M4/depend/CC-M.m4	${CC} -M ${COPTS} *.c >> Makefile
generic	devtools/M4/depend/generic.m4	nothing
NCR	devtools/M4/depend/NCR.m4	${CC} -w0 -Hmake ${COPTS} *.c >> Makefile
Solaris	devtools/M4/depend/Solaris.m4	${CC} -xM ${COPTS} *.c >> Makefile
X11	devtools/M4/depend/X11.m4	makedepend ${COPTS} *.c

Note that the correct Solaris method is usually chosen for you in an appropriate devtools/OS file. But in the rare case that the method is wrong or broken, you can use this confDEPEND_TYPE to select another method. For example, consider this broken implementation of a mkdep script:

 mkdep -a -f Makefile -I. -DNEWDB *.c cc: Warning: Option -f passed to ld cc: Warning: File with unknown suffix (Makefile) passed to ld 

In this example, we know we are running X11, and so we chose to replace the defective mkdep with the makedepend (1) program:

 define(`confDEPEND_TYPE', `X11') 

The new method is specified as the filename (with the .m4 suffix removed) in the devtools/M4/depend directory. Rerunning the Build with -c and this new definition will produce error-free output:

 Making dependencies in obj.SunOS.4.1.3.sun4 makedepend -- -I. -I/usr/local/include/db -DNEWDB -DNEWDB -DMATCHGECOS=0 -- *.c Making in obj.SunOS.4.1.3.sun4