g++ link errors

Dean Scarff d_scarff@bigpond.com
Tue Dec 9 04:21:00 GMT 2003


Hannu E K Nevalainen wrote:

> Your compile displays "gcc version 3.2.3" but
> cygcheck output says you have 3.3.* installed.
> 
> May I suggest that you try to uninstall+reinstall the gcc packages?
> Though: I'm not sure this will help you.

Yep, the problem seemed to be that all the 3.2.3 stuff was in /usr/local 
thus overriding the 3.3.1 files which use just the /usr prefix.  Whether 
this was a failure of the 3.2.3 uninstall script or not I'm not sure, I 
had to remove all the old files manually (obviously uninstalling and 
reinstalling 3.3.1 wouldn't help, as this wasn't the problem).

Problem solved, anyway.


>>From: Dean Scarff
>>Sent: Sunday, December 07, 2003 7:34 AM
> 
> 
>>Hi,
>>I'm getting link errors with libstdc++.  At first I thought I must have
>>been missing a package, but AFAICS I have all the relevant ones.  I
>>assumed libstdc++ would be linked in by default from a g++ command line.
>>  I couldn't see anything similar mentioned in the archives.  I assume
>>c++ wouldn't be broken by default for the whole distribution like this,
>>what have I forgotten (and out of interest, why does the 3.3.1 version
>>of gcc and g++ use the 3.2.3 specs)?
>>
>>scarff-box ~ $ cat nolink.cc
>>
>>#include <iostream>
>>
>>using namespace std;
>>
>>int
>>main(int, char**)
>>{
>>   cout << "hello.";
>>}
>>
>>scarff-box ~ $ g++ -Wall -v nolink.cc
>>Reading specs from /usr/local/lib/gcc-lib/i686-pc-cygwin/3.2.3/specs
>>Configured with: ./configure --enable-languages=objective-c
>>--with-system-zlib --without-included-gettext --host=i686-pc-cygwin
>>--target=i686-pc-cygwin --prefix=/usr/local/ --exec-prefix=/usr/local :
>>(reconfigured) ./configure --target=i686-pc-cygwin --prefix=/usr/local
>>--with-as=/usr/bin/as.exe --with-ld=/usr/bin/ld.exe
>>--enable-threads=win32 -enable-languages=c,c++,objc
>>Thread model: win32
>>gcc version 3.2.3
>>  /usr/local/lib/gcc-lib/i686-pc-cygwin/3.2.3/cc1plus.exe -v
>>-D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=3
>>-D__GXX_ABI_VERSION=102 -D_X86_=1 -D_X86_=1 -Asystem=winnt
>>-D__NO_INLINE__ -D__STDC_HOSTED__=1 -Acpu=i386 -Amachine=i386 -Di386
>>-D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__
>>-D__stdcall=__attribute__((__stdcall__))
>>-D__cdecl=__attribute__((__cdecl__))
>>-D_stdcall=__attribute__((__stdcall__))
>>-D_cdecl=__attribute__((__cdecl__)) -D__declspec(x)=__attribute__((x))
>>-D__i386__ -D__i386 -D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__
>>-D__unix -isystem /usr/local/include -idirafter
>>/usr/local/i686-pc-cygwin/include -idirafter /usr/include -idirafter
>>/usr/local/i686-pc-cygwin/include/w32api -idirafter /usr/include/w32api
>>nolink.cc -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase
>>nolink.cc -Wall -version -o
>>/mnt/data/Profiles/scarff/LOCALS~1/Temp/ccSJf53h.s
>>ignoring nonexistent directory "/usr/local/i686-pc-cygwin/include"
>>ignoring nonexistent directory "/usr/local/i686-pc-cygwin/include/w32api"
>>GNU CPP version 3.2.3 (cpplib) (80386, BSD syntax)
>>GNU C++ version 3.2.3 (i686-pc-cygwin)
>>         compiled by GNU C version 3.2 20020927 (prerelease).
>>#include "..." search starts here:
>>#include <...> search starts here:
>>  /usr/local/include
>>  /usr/local/include/c++/3.2.3
>>  /usr/local/include/c++/3.2.3/i686-pc-cygwin
>>  /usr/local/include/c++/3.2.3/backward
>>  /usr/local/lib/gcc-lib/i686-pc-cygwin/3.2.3/include
>>  /usr/include
>>  /usr/include/w32api
>>End of search list.
> 
> 
> <SNIP>
> 
>>gcc                  3.3.1-3            OK
>>gcc-g++              3.3.1-3            OK
>>gcc-mingw            20030911-4         OK
>>gcc-mingw-core       20031020-1         OK
>>gcc-mingw-g++        20031020-1         OK
>>gdbm                 1.8.3-7            OK
> 
> 
> <SNIP>
> 
> --END OF MESSAGE--


-- 
Dean


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