error undefined reference while building a C++ project

Asked Nov 23 '12 at 15:25

Active May 23 '18 at 12:57

Viewed 71 times

Possible Duplicate:
What is an undefined reference/unresolved external symbol error and how do I fix it?

I have no clue what is this problem:

/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o: In function `_start':
(.text+0xc): undefined reference to `__libc_csu_fini'
/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/crt1.o: In function `_start':
(.text+0x11): undefined reference to `__libc_csu_init'

I am building a C++ project with Cmake. Is there anyhow that I can check the details of the error?

edited May 23 '18 at 12:57

halfer

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asked Nov 23 '12 at 15:25

olidev

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What is the compilation command? It looks to me like you are either missing or not linking to the i686 libc. – Linuxios Nov 23 '12 at 15:26
Aren't there other error message before this one? Like for missing libc ? – chill Nov 23 '12 at 15:30
set VERBOSE=1: `$ VERBOSE=1 make` and show us the invocation of the compiler/linker – piokuc Nov 23 '12 at 15:37
http://www.linuxquestions.org/questions/linux-general-1/undefined-reference-to-%60__libc_csu_fini-849247/ – piokuc Nov 23 '12 at 15:44
I dont think this is a duplicated question. I have tried those hints but still there is no clue about the problem – olidev Nov 26 '12 at 16:48
@Linuxios how can I check if I missed or did not link to the i686? – olidev Nov 26 '12 at 16:48
@chill it is strange that there is no error before this one – olidev Nov 26 '12 at 16:48
@piokuc yes, I have added VERBOSE=1 but there is not much helpful debug data – olidev Nov 26 '12 at 16:49
@olidev: Try adding `-lc` to your compile command. – Linuxios Nov 26 '12 at 22:22
@Linuxios thanks. what does -lc mean? I will try it tomorrow morning – olidev Nov 26 '12 at 23:38
@olidev: it means to link library (-l) C (c). – Linuxios Nov 27 '12 at 05:33
@Linuxios adding -lc does not add any value. Thanks – olidev Nov 27 '12 at 09:44
@olidev: Hm. That's odd. – Linuxios Nov 27 '12 at 14:35

error undefined reference while building a C++ project

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