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make all make: Nothing to be done for `all'. [message #641531]

Thu, 25 November 2010 21:58

No real name

Messages: 3
Registered: November 2010

Junior Member

HELLO,

I was trying to import existing c++ project to the CDT eclipse.
this is what i did :
1. created a new Makefile project > Empty project
2. Gave it a name exactly as the exisiting c++ code's folder
3.selected the macOSX Gcc as the compiler type cuz my OS is mac.
4. and clicked finish

5. the project and all the files were imported..
6. right clicked on the project and selected properties
a. in builder Setting tab, i unchecked the Use Default Build command and Generate Makefiles automatically boxes.
b. In behaviour tab, i unchecked the Build on Resource Save(Auto Build).
c. then, i clicked Apply and ok.
Now, when i finally tried to compile the projecte, i got this error :

**** Build of configuration Default for project CPlusProj ****
make all
make: Nothing to be done for `all'.

Can anyone help me solve this? i can write a single file c++ code and compile it correctly and debug it but when i try to import projects, i get this error...

here is my eclipse version downloaded directly from eclipse.org:

Eclipse IDE for C/C++ Developers
Version: Helios Service Release 1

i have been on this problem for 2 days now
Build id: 20100917-0705

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Re: make all make: Nothing to be done for `all'. [message #641565 is a reply to message #641531]

Fri, 26 November 2010 06:48

Axel Mueller

Messages: 1973
Registered: July 2009

Senior Member

Quote:

make all
make: Nothing to be done for `all'.

This means that all files are uptodate. Your project was already build.
So when you modify a source file, does it rebuild then?

Before you ask
- search this forum
- see the FAQ http://wiki.eclipse.org/CDT/User/FAQ
- google

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Re: make all make: Nothing to be done for `all'. [message #641608 is a reply to message #641565]

Fri, 26 November 2010 09:41

No real name

Messages: 3
Registered: November 2010

Junior Member

hi,

thanks for the reply..

i tried modifying the source file and rebuilt and once again it gave the same satement :

**** Build of configuration Default for project CPlusProj ****
make all
make: Nothing to be done for `all'.

i must stress that this is a working/existing project i wrote in devc++ . i just want to learn how to import it to eclipse. Also, going by your answer, i decided to run it after building it and here it says :

Launched failed. binaries not found

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Re: make all make: Nothing to be done for `all'. [message #641637 is a reply to message #641608]

Fri, 26 November 2010 12:12

Axel Mueller

Messages: 1973
Registered: July 2009

Senior Member

No Real Name wrote on Fri, 26 November 2010 10:41

This sounds like your makefile does indeed nothing. That's why launching will fail then.
Can you execute "make all" on the command line (outside Eclipse) and will it then build your project?
You should also be aware that you will get the above message if make does not find a Makefile! So probably you did not define the correct build location in project properties?

Before you ask
- search this forum
- see the FAQ http://wiki.eclipse.org/CDT/User/FAQ
- google

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