Re: [Fwd: Help with undefined reference]

[Lothar Werzinger <lothar at tradescape dot biz>]

On Monday, August 16, 2010, Machiel Richards wrote:
> -------- Forwarded Message --------
> From: Machiel Richards <machielr@rdc.co.za>
> To: gcc-help@gcc.gnu.org
> Subject: Help with undefined reference
> Date: Mon, 16 Aug 2010 14:52:28 +0200
> 
> Good day all
> 
>     I hope that someone can assist me in this matter.
> 
> 
>    We are trying to compile a package using gcc but we are getting the
> following errors:
> 
> build/libxr.a(sys_main.o): In function `sigcatcher':
> /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c
> ++/3.4.6/ext/new_allocator.h:69: undefined reference to `_Unwind_Resume'
> /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c
> ++/3.4.6/ext/new_allocator.h:69: undefined reference to `_Unwind_Resume'
> build/libxr.a(sys_main.o): In function `~basic_string':
> /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c
> ++/3.4.6/ext/new_allocator.h:69: undefined reference to `_Unwind_Resume'
> build/libxr.a(sys_main.o): In function `showlimits':
> /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c
> ++/3.4.6/bits/basic_ios.h:268: undefined reference to `_Unwind_Resume'
> /usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c
> ++/3.4.6/bits/basic_ios.h:268: undefined reference to `_Unwind_Resume'
> build/libxr.a(sys_main.o):/usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../
> include/c++/3.4.6/bits/basic_ios.h:268: more undefined references to
> `_Unwind_Resume' follow collect2: ld returned 1 exit status
> 
> 
>        The installation works fine on other VM's with the same OS etc...
> however the server where tihs needs to run is running oracle apps and we
> are thus assuming that some link to the correct libraries is missing or
> has changed.
> 
>         Thus far however we haven;t been able to find anyone who can
> assist in pinpointing the problem as yet.
> 
> 
>        Please feel free to let me know if you need any more info.
> 
> 
> Regards
> MAchiel

I would like to know the cause for that, too.
I am trying to build gcc and it seems to build and install fine, but if I try 
to use g++ I get the following errors when In try to compile a simple "hello 
world" program.

/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_Resume_or_Rethrow'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_RaiseException'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_GetLanguageSpecificData'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_Resume'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_DeleteException'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_GetTextRelBase'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_SetIP'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_GetDataRelBase'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_GetRegionStart'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_SetGR'
/opt2/linux/ix86/lib/gcc/x86_64-pc-linux-gnu/4.5.1/32/libstdc++.so: undefined 
reference to `_Unwind_GetIPInfo'

Lothar