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Shared Library and linked sources [message #1719600]

Sat, 09 January 2016 16:02

Spongebob Schwammkopf

Messages: 1
Registered: January 2016

Junior Member

Hi, i am failing since two days to set up a new Shared Library project with linked sources under linux. What i did was to create a new wokspace and inside this workspace i created a new Shared Library project (Linux GCC). Because i don't want the sources to be in the workspace nor in the project folder i created a linked folder like that:

Quote:

File -> New -> Folder -> Advanced -> Link to alternate Location (Linked Folder)

The structure looks like this:
Workspace: /media/username/MyHDD/C++/MyWorkSpace
Project: /media/username/MyHDD/C++/MyWorkSpace/MyProject
Source Folder: /media/username/MyHDD/C++/Common/MySources

GCC C++ Compiler Settings:

-std=c++0x -DNDEBUG -DUNICODE -D_UNICODE -I/media/username/MyHDD/C++/Common/MySources -O3 -Wall -c -fmessage-length=0

But building this i got the following error:

Quote:

Nothing to build for project MyProject

So i added the linked source folder as an include path:

-I/media/username/MyHDD/C++/Common/MySharedLib

Quote:

Properties -> C/C++ Gerneral -> Paths and Symbols -> GNU C++ -> Includes

but failing again because some sources in sub folders of this linked folder could not be found:

FolderXY/subdir.mk:39: recipe for target 'FolderXY/FileXY.o' failed

Even adding the source files like this to the project

Quote:

File -> Import -> File System -> Advanced -> Create links in workspace

had no success. So please tell my why eclipse can't do, what every other IDE can do.
Or what is the right proceeding to accomplish this setup.

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Re: Shared Library and linked sources [message #1719766 is a reply to message #1719600]

Mon, 11 January 2016 21:25

David Vavra

Messages: 1426
Registered: October 2012

Senior Member

Ecliipse doesn't seem to know about your source files. At least that's the impression I got from your -std=c++0x -DNDEBUG -DUNICODE -D_UNICODE -I/media/username/MyHDD/C++/Common/MySources -O3 -Wall -c -fmessage-length=0. Where did this come from? The build log? If so, there is no source file in it.

You apparently don't realize that FolderXY/subdir.mk:39: recipe for target 'FolderXY/FileXY.o' failed is a message saying the make failed but it isn't telling you why. For that. you need to look at the error messages which preceded it.

The -I flag tells the compiler where to look for included files and not where to look for the source.

You haven't given enough information to see what you've really done.
Can you post an image of the full tree of your project file?
Also a copy of the complete build log when you try to build.

Are you trying to use a relative path? That seems to be checked by default. It must end up somewhere that actually exists. I'd recommend absolute file paths (staring with '/' root) until you get something working.

After you link the files it should look something like this:

index.php/fa/24586/0/

Once it looks something like the above (subfolders are OK), you can select the file and right-click Properties ==> Resource. It should say Linked File. If you press the Edit... button it will show you where and give the opportunity to change it.

Attachment: SharedLibProj.png
(Size: 5.95KB, Downloaded 1705 times)

[Updated on: Mon, 11 January 2016 21:31]

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