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From: | "arizvi" <ahmadwaris AT hotmail DOT com> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Problem with make: undefined reference to vtable |
Date: | 24 Jun 2005 12:21:59 -0700 |
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To: | djgpp AT delorie DOT com |
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Reply-To: | djgpp AT delorie DOT com |
> > Instead of: > > > ./test_view.o:: test_view.cpp infoDialog.cpp > > > I had: > > > ./test_view.o:: infoDialog.cpp test_view.cpp > > Those are both equally wrong. This rule can only make sense if you > #include one .cpp file into the other. Don't do that. Compile each > separately, and leave it to the linker to combine them. > I dont understand how both rules are wrong. Afaik, the top rule states that test_view.o depends on test_view.cpp and infoDialog.cpp. So if infoDialog.cpp changes, test_view.cpp will be recompiled. What you are suggesting (let me know if I am wrong) is that the rules should be simply ./test_view.o:: test_view.cpp ./infoDialog.o:: infoDialog.cpp, and then I lose the dependency I am looking for. Or are you implying that if I include infoDialog.h in test_view.cpp, I will get the dependency automatically? I have certainly no wish to 'include' one cpp file in another. I am only want to link them together. The rule './test_view.o:: test_view.cpp infoDialog.cpp' is only a dependency. Please let me know if I am wrong. -Ahmad
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