static libraries

This is a discussion on static libraries within the Linux Programming forums, part of the Platform Specific Boards category; Hi, I have a libX.a that I've created (from test.c) and put in /usr/lib/ I've then created another libY.a, that ...

  1. #1
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    static libraries

    Hi,

    I have a libX.a that I've created (from test.c) and put in /usr/lib/

    I've then created another libY.a, that calls functions in libX.a, I've also copied this lib to /usr/lib/

    Now when I write a program that uses both these libs, then compile I get:

    Code:
    bill@micosoftsux:~$ gcc test_prog.c  -Wall -m32 -O -g -lX -lY -o test_prog
    /usr/lib/libY.a(test.c.o): In function `test_init':
    test.c:(.text+0x111): undefined reference to `test_open'
    test.c:(.text+0x237): undefined reference to `test_open'
    /usr/lib/libY.a(test.c.o): In function `test_send':
    test.c:(.text+0x7e3): undefined reference to `test_write'
    test.c:(.text+0x8fc): undefined reference to `test_write'
    collect2: ld returned 1 exit status
    make: *** [test_prog] Error 1
    test.c header files exist in /usr/include/ and I've compiled with -lX -lY, but its not working...

    Any ideas?
    "What comes around, goes around"

  2. #2
    Unregistered User Yarin's Avatar
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    test_open and test_write are in libX?
    A class that doesn't overload all operators just isn't finished yet. -- SmugCeePlusPlusWeenie
    A year spent in artificial intelligence is enough to make one believe in God. -- Alan J. Perlis

  3. #3
    {Jaxom,Imriel,Liam}'s Dad Kennedy's Avatar
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    You could try something like "gcc -lX -lY -lX -lY <the rest of that stuff>" as it is a library processing issue -- there are three phases to the linking. If you don't include the second reference, phase two dies because of dependencies.

  4. #4
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    Quote Originally Posted by coletek View Post
    Hi,

    I have a libX.a that I've created (from test.c) and put in /usr/lib/

    I've then created another libY.a, that calls functions in libX.a, I've also copied this lib to /usr/lib/

    Now when I write a program that uses both these libs, then compile I get:

    Code:
    bill@micosoftsux:~$ gcc test_prog.c  -Wall -m32 -O -g -lX -lY -o test_prog
    /usr/lib/libY.a(test.c.o): In function `test_init':
    test.c:(.text+0x111): undefined reference to `test_open'
    test.c:(.text+0x237): undefined reference to `test_open'
    /usr/lib/libY.a(test.c.o): In function `test_send':
    test.c:(.text+0x7e3): undefined reference to `test_write'
    test.c:(.text+0x8fc): undefined reference to `test_write'
    collect2: ld returned 1 exit status
    make: *** [test_prog] Error 1
    test.c header files exist in /usr/include/ and I've compiled with -lX -lY, but its not working...

    Any ideas?
    Firt specify -lY and then -lX:
    Code:
    bill@micosoftsux:~$ gcc test_prog.c  -Wall -m32 -O -g -lY -lX -o test_prog
    Or use shared libraries

  5. #5
    Unregistered User Yarin's Avatar
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    I remember now, having the same problem in Windows, so this is definitely GCC specific, not shared object / Linux.
    A class that doesn't overload all operators just isn't finished yet. -- SmugCeePlusPlusWeenie
    A year spent in artificial intelligence is enough to make one believe in God. -- Alan J. Perlis

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