Home » U++ TheIDE » U++ TheIDE: Compiling, Linking, Debugging of your packages » missing library - linking error
| missing library - linking error [message #12437] |
Tue, 30 October 2007 17:26  |
pippo
Messages: 17
Registered: October 2007
Location: Italy
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Promising Member |
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I'm compiling a simple program and I'm using a time variable.
I'm including <time.h> because I want to use the clock_gettime() function to retrieve the system time clock.
The only think I get back it's a linking error reported below:
Linking...
/home/user/upp/out/CodaArtigianale/GCC.Debug.Gui.Main.Mt.Shared/CodaArtigianale.o: In function `MS_CodaArtig::funzione_suo()':
CodaArtigianale.cpp:(.text+0x49): undefined reference to `clock_gettime'
collect2: ld returned 1 exit status
There were errors. (0:04.00)
Can someone say to me which library I have to include in my project?
10aa3a8774daeb994a88cc07572e2b6c
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| Re: missing library - linking error [message #12442 is a reply to message #12437] |
Wed, 31 October 2007 18:11  |
willysignori
Messages: 4
Registered: September 2007
Location: Italy
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Junior Member |
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Hi PIPPO,
the "clock_gettime()" is inserted into the library LIBRT (Ubuntu 7.04).
Often it's used the function "gettimeofday" with less resolution (microsecond instead of nanosecond) but enough for most of applications.
Under U++ you have to add the library to your project; to do this you have to:
1) menu PROJECT -> Package organizer
2) on the right frame, click right mouse button and add new LIBRARY row
3) type "rt" (to link "librt" library, because suffix "lib" is "added" by default by GNU linker) and press OK
Bye.
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