I personaly write something like that: g++ -MM -MF depcpp.dep -MT ../../directory/c.o c.cpp ---- Lev Assinovsky Aelita Software Corporation O&S InTrust Framework Division, Team Leader ICQ# 165072909 > -----Original Message----- > From: Stephen Bianchi [mailto:swbianchi@xxxxxxxxxxxxx] > Sent: Friday, November 28, 2003 2:31 AM > To: gcc-help@xxxxxxxxxxx > Subject: g++ -MM -MT > > > This is great (see below), but is there a way to write out > the rule as: > ../../directory/c.o: c.cpp > > I want to keep the object files in a separate directory from > the source > files. > > Thank you. > > -------------------------------------------------------------- > ----------- > Nevermind. It's as easy as replacing the Makefile line: > > $(CPP) -MM $(CPPFLAGS) `echo $$i | sed > "s/\(.*\)\\.o$$/\1.cpp/"` >> depend > > with: > > $(CPP) -MM -MT $$i $(CPPFLAGS) `echo $$i | sed > "s/\(.*\)\\.o$$/\1.cpp/"` > >> depend > > Sorry for the spam :) > > On Wednesday 30 July 2003 12:17, Mihnea Balta wrote: > > As a side note, these two manual entries seem conflicting: > > > > The entry for the -M flag says: > > "The preprocessor outputs one make rule containing the object file > name for > > that source file, a colon, and the names of all the > included files [...]" > > > > The entry for the -MT flag says: > > "By default CPP takes the name of the main input file, > _including any > > path_, deletes any file suffix such as .c, and appends the > platform's > usual > > object suffix. The result is the target." > > > > On Wednesday 30 July 2003 12:09, Mihnea Balta wrote: > > > Hello, > > > > > > I want to implement an automated system that generates dependency > > > information for my project's sources. I've used the > standard technique: > > > > > > OBJS=a.o b.o ../../directory/c.o > > > > > > ... > > > > > > dep: > > > /bin/rm -f depend > > > for i in $(OBJS); do \ > > > $(CPP) -MM $(CPPFLAGS) `echo $$i | sed > "s/\(.*\)\\.o$$/\1.cpp/"` >> > > > depend;\ done > > > > > > ifeq (depend,$(wildcard depend)) > > > include depend > > > endif > > > > > > The problem with this approach is that the following line: > > > g++ -MM ../../directory/c.cpp > > > outputs the following make rule: > > > c.o: ../../directory/c.cpp > > > > > > I would like it to output the rule as: > > > ../../directory/c.o: ../../directory/c.cpp > > > > > > Is there any way to do this with a g++ switch (I > couldn't find one > in the > > > manual), or do I have to write my own utility to perform that > conversion? > > > > > > Thanks in advance. > > > > >
