Linking shared library libdvbv5, undefined refrence
I am using the libdvbv5 library however I am having issues getting my program to compile.
I have the headers in /usr/local/include and there is libdvbv5.so in /usr/local/lib.
The code is extremely simple:
#include "libdvbv5/dvb-dev.h"
void doSatTest()
struct dvb_device *dvb;
struct dvb_dev_list *dvb_dev;
dvb = dvb_dev_alloc();
The eclipse indexer is satisfied that the function "dvb_dev_alloc" exists in the header file "dvb-dev.h" and the file compiles but fails on link
I have stopped using the eclipse builder so i can simplify the build command and pinpoint what is happening.
I try to compile and link using the following command:
g++ sat_test.cpp -ldvbv5
However it fails with:
sat_test.cpp:(.text+0x1f): undefined reference to `dvb_dev_alloc()'
What am I missing?
c++ linker shared-libraries undefined-reference
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
add a comment |
I am using the libdvbv5 library however I am having issues getting my program to compile.
I have the headers in /usr/local/include and there is libdvbv5.so in /usr/local/lib.
The code is extremely simple:
#include "libdvbv5/dvb-dev.h"
void doSatTest()
struct dvb_device *dvb;
struct dvb_dev_list *dvb_dev;
dvb = dvb_dev_alloc();
The eclipse indexer is satisfied that the function "dvb_dev_alloc" exists in the header file "dvb-dev.h" and the file compiles but fails on link
I have stopped using the eclipse builder so i can simplify the build command and pinpoint what is happening.
I try to compile and link using the following command:
g++ sat_test.cpp -ldvbv5
However it fails with:
sat_test.cpp:(.text+0x1f): undefined reference to `dvb_dev_alloc()'
What am I missing?
c++ linker shared-libraries undefined-reference
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
And that is the only message you get? On many Linux systems/usr/localis not part of the standard include or library search paths.
– Some programmer dude
Nov 15 '18 at 14:59
Yes the only message, the full message is:/tmp/cc3BD0pW.o: In function "doSatTest()": sat_test.cpp:(.text+0x1f): undefined reference to "dvb_dev_alloc()" collect2: error: ld returned 1 exit status
– uhsl_m
Nov 15 '18 at 15:26
add a comment |
I am using the libdvbv5 library however I am having issues getting my program to compile.
I have the headers in /usr/local/include and there is libdvbv5.so in /usr/local/lib.
The code is extremely simple:
#include "libdvbv5/dvb-dev.h"
void doSatTest()
struct dvb_device *dvb;
struct dvb_dev_list *dvb_dev;
dvb = dvb_dev_alloc();
The eclipse indexer is satisfied that the function "dvb_dev_alloc" exists in the header file "dvb-dev.h" and the file compiles but fails on link
I have stopped using the eclipse builder so i can simplify the build command and pinpoint what is happening.
I try to compile and link using the following command:
g++ sat_test.cpp -ldvbv5
However it fails with:
sat_test.cpp:(.text+0x1f): undefined reference to `dvb_dev_alloc()'
What am I missing?
c++ linker shared-libraries undefined-reference
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
I am using the libdvbv5 library however I am having issues getting my program to compile.
I have the headers in /usr/local/include and there is libdvbv5.so in /usr/local/lib.
The code is extremely simple:
#include "libdvbv5/dvb-dev.h"
void doSatTest()
struct dvb_device *dvb;
struct dvb_dev_list *dvb_dev;
dvb = dvb_dev_alloc();
The eclipse indexer is satisfied that the function "dvb_dev_alloc" exists in the header file "dvb-dev.h" and the file compiles but fails on link
I have stopped using the eclipse builder so i can simplify the build command and pinpoint what is happening.
I try to compile and link using the following command:
g++ sat_test.cpp -ldvbv5
However it fails with:
sat_test.cpp:(.text+0x1f): undefined reference to `dvb_dev_alloc()'
What am I missing?
c++ linker shared-libraries undefined-reference
c++ linker shared-libraries undefined-reference
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
edited Nov 15 '18 at 17:22
uhsl_m
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
asked Nov 15 '18 at 14:55
uhsl_muhsl_m
8810
8810
And that is the only message you get? On many Linux systems/usr/localis not part of the standard include or library search paths.
– Some programmer dude
Nov 15 '18 at 14:59
Yes the only message, the full message is:/tmp/cc3BD0pW.o: In function "doSatTest()": sat_test.cpp:(.text+0x1f): undefined reference to "dvb_dev_alloc()" collect2: error: ld returned 1 exit status
– uhsl_m
Nov 15 '18 at 15:26
add a comment |
And that is the only message you get? On many Linux systems/usr/localis not part of the standard include or library search paths.
– Some programmer dude
Nov 15 '18 at 14:59
Yes the only message, the full message is:/tmp/cc3BD0pW.o: In function "doSatTest()": sat_test.cpp:(.text+0x1f): undefined reference to "dvb_dev_alloc()" collect2: error: ld returned 1 exit status
– uhsl_m
Nov 15 '18 at 15:26
And that is the only message you get? On many Linux systems
/usr/local is not part of the standard include or library search paths.– Some programmer dude
Nov 15 '18 at 14:59
And that is the only message you get? On many Linux systems
/usr/local is not part of the standard include or library search paths.– Some programmer dude
Nov 15 '18 at 14:59
Yes the only message, the full message is:
/tmp/cc3BD0pW.o: In function "doSatTest()": sat_test.cpp:(.text+0x1f): undefined reference to "dvb_dev_alloc()" collect2: error: ld returned 1 exit status– uhsl_m
Nov 15 '18 at 15:26
Yes the only message, the full message is:
/tmp/cc3BD0pW.o: In function "doSatTest()": sat_test.cpp:(.text+0x1f): undefined reference to "dvb_dev_alloc()" collect2: error: ld returned 1 exit status– uhsl_m
Nov 15 '18 at 15:26
add a comment |
1 Answer
1
active
oldest
votes
The problem is that the the libdvbv5/dvb-dev.h does not provide a proper C++ prototype, and you are including it into a .cpp file.
The fix is to do this:
extern "C"
#include "libdvbv5/dvb-dev.h"
... rest as before.
With above fix, your program will link fine.
A more detailed explanation here.
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The problem is that the the libdvbv5/dvb-dev.h does not provide a proper C++ prototype, and you are including it into a .cpp file.
The fix is to do this:
extern "C"
#include "libdvbv5/dvb-dev.h"
... rest as before.
With above fix, your program will link fine.
A more detailed explanation here.
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
add a comment |
The problem is that the the libdvbv5/dvb-dev.h does not provide a proper C++ prototype, and you are including it into a .cpp file.
The fix is to do this:
extern "C"
#include "libdvbv5/dvb-dev.h"
... rest as before.
With above fix, your program will link fine.
A more detailed explanation here.
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
add a comment |
The problem is that the the libdvbv5/dvb-dev.h does not provide a proper C++ prototype, and you are including it into a .cpp file.
The fix is to do this:
extern "C"
#include "libdvbv5/dvb-dev.h"
... rest as before.
With above fix, your program will link fine.
A more detailed explanation here.
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
The problem is that the the libdvbv5/dvb-dev.h does not provide a proper C++ prototype, and you are including it into a .cpp file.
The fix is to do this:
extern "C"
#include "libdvbv5/dvb-dev.h"
... rest as before.
With above fix, your program will link fine.
A more detailed explanation here.
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
answered Nov 16 '18 at 4:44
Employed RussianEmployed Russian
125k20168238
125k20168238
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
add a comment |
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
Solved! thanks a lot!
– uhsl_m
Nov 16 '18 at 10:33
add a comment |
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And that is the only message you get? On many Linux systems
/usr/localis not part of the standard include or library search paths.– Some programmer dude
Nov 15 '18 at 14:59
Yes the only message, the full message is:
/tmp/cc3BD0pW.o: In function "doSatTest()": sat_test.cpp:(.text+0x1f): undefined reference to "dvb_dev_alloc()" collect2: error: ld returned 1 exit status– uhsl_m
Nov 15 '18 at 15:26