Eclipse Community Forums: C / C++ IDE (CDT) » Dynamic and Static libraries

Help

Home

Home » Language IDEs » C / C++ IDE (CDT) » Dynamic and Static libraries(Working to compile an external library)

Show: Today's Messages :: Show Polls :: Message Navigator

Dynamic and Static libraries [message #1827737]

Fri, 22 May 2020 07:01

Keyara Edwards

Messages: 8
Registered: May 2020

Junior Member

So I've tried adding both a static and dynamic libraries in eclipse using the MinGw linker and gcc++ compiler with limited success would anybody be able to clearly explain how to correctly do so. The errors i've run into area:

- the file type was not supported
-file could not be found

and then this wonderful error message as well:

-C:/Program Files (x86)/mingw-w64/i686-8.1.0-posix-dwarf-rt_v6-rev0/mingw32/bin/../lib/gcc/i686-w64-mingw32/8.1.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lD:\workspace\Libraries\C++\SDL2-2.0.12-win32-x64\SDL2.dll

Which after labeling clearly where everything was in the project manager has made me want to smash my pc, please help if possible.

Side note: I have added path in the path&symbols and in the tools under build with correct path to library.

Side note to side note: I might have not done it correctly but there are no compile errors like previous about file not found till the above one.

Report message to a moderator

Re: Dynamic and Static libraries [message #1827740 is a reply to message #1827737]

Fri, 22 May 2020 09:17

David Vavra

Messages: 1426
Registered: October 2012

Senior Member

FWIW: I haven't used MinGW in a long time
but I don't think you can include a path in the -l (small L) option.
It's meant to be a shorthand notation of libXXX.a (or a Windows equivalent)
For MinGW, it's a bit more complicated.
https://stackoverflow.com/questions/15852677/static-and-dynamic-shared-linking-with-mingw/15853231#15853231

Are you telling the linker to use a DLL?
You can't use a Windows DLL with MinGW that was generated with MSVC++
http://www.mingw.org/wiki/MSVC_and_MinGW_DLLs
https://stackoverflow.com/questions/2472924/linking-to-msvc-dll-from-mingw/2473242

Some additional reading:

http://www.mingw.org/wiki/HOWTO_Specify_the_Location_of_Libraries_for_use_with_MinGW
https://docs.microsoft.com/en-us/windows/win32/dlls/dynamic-link-library-search-order
http://www.mingw.org/wiki/specify_the_libraries_for_the_linker_to_use

http://www.mingw.org/wiki/sampleDLL

This forum is for addressing issues with CDT.
Issues involving using external tools are generally off-topic.
While CDT allows you to specify options so that it can generate makefile recipes,
it is assumed you know what those options mean and how to apply them.

Report message to a moderator

Re: Dynamic and Static libraries [message #1838840 is a reply to message #1827740]

Sat, 06 March 2021 03:06

Keyara Edwards

Messages: 8
Registered: May 2020

Junior Member

I am truly sorry for the late reply but almost all the websites your recommended are gone as in the page doesn't load.

Report message to a moderator

Re: Dynamic and Static libraries [message #1838843 is a reply to message #1838840]

Sat, 06 March 2021 08:02

David Vavra

Messages: 1426
Registered: October 2012

Senior Member

Well the http and the MinGW ones seem to be.
I don't have the time to research this again.
As I originally mentioned, it's off-topic as it is a "how-to" for third party tools.

Try changing the http to https.
Suggest trying a web search for using dll mingw or similar

Report message to a moderator

Re: Dynamic and Static libraries [message #1838929 is a reply to message #1838843]

Tue, 09 March 2021 18:14

sydney faria

Messages: 54
Registered: March 2013

Member

No Message Body

Report message to a moderator

Re: Dynamic and Static libraries [message #1838930 is a reply to message #1838929]

Tue, 09 March 2021 18:20

sydney faria

Messages: 54
Registered: March 2013

Member

I just looked at a couple of UTube videos on this very same subject!!! They discussed static and dynamic libraries, their differences (which I didn't know about), and how to make and use them in Eclipse! Some of them are oriented towards using Linux and others are oriented towards Windows. All are very informative. I can send you links to these videos is you can't find them on UTube.
wt1v

Report message to a moderator