Re: Link error for blahS.c when used in multiple GCC environment.

[Brendon Costa]

Ralf Wildenhues wrote:
> * Brendon Costa wrote on Mon, Apr 02, 2007 at 11:42:29PM CEST:
>> Ok, I installed libtool 1.5.23b and re-bootstrapped my example project.
> 
> Thanks for all the data.  Upon reading, I'm a bit embarassed to see that
> I could have asked a better question earlier; sorry about that.
> 
>> /usr/pkg/bin/bash ../../../libtool --tag=CXX --mode=link g++  -g -O2
>> -L/home/bcosta/gcc/install/lib -o library_user  library_user-main.o
>> ../../../src/libs/myshared/libmyshared.la
>> ../../../src/libs/mystatic/libmystatic.la ../../../libltdl/libltdlc.la
>> -dlopen ../../../src/plugins/myplugin/myplugin.la
> 
> Am I right in that you have both a static and a shared library that both
> link against libstdc++?  If yes, why are you doing this (the static lib)?
> 
> I bet it's the libstdc++.a coming into play...
> 

They are both C++ libraries yes. I do not tell either of them to link
with libstdc++ explicitly. The linking lines for the libs are below.

There is no mention of libstdc++ in the linking of libmystatic. There is
however a reference to libstdc++ while linking libmyshared which is
added in by libtool. This should be normal behavior shouldn't it?



/usr/pkg/bin/bash ../../../libtool --tag=CXX --mode=link g++  -g -O2
-L/home/bcosta/gcc/install/lib -o libmystatic.la -rpath /usr/local/lib
-static libmystatic_la-mystatic.lo
ar cru .libs/libmystatic.a  libmystatic_la-mystatic.o
ranlib .libs/libmystatic.a
creating libmystatic.la
(cd .libs && rm -f libmystatic.la && ln -s ../libmystatic.la libmystatic.la)




/usr/pkg/bin/bash ../../../libtool --tag=CXX --mode=link g++  -g -O2
-L/home/bcosta/gcc/install/lib -o libmyshared.la -rpath /usr/local/lib
libmyshared_la-myshared.lo
g++ -shared -nostdlib /usr/lib/crti.o
/home/bcosta/gcc/install/lib/gcc/i386-unknown-netbsdelf3.0/4.0.1/crtbeginS.o
 .libs/libmyshared_la-myshared.o  -Wl,--rpath
-Wl,/home/bcosta/gcc/install/lib -Wl,--rpath
-Wl,/home/bcosta/gcc/install/lib -L/home/bcosta/gcc/install/lib
-L/home/bcosta/gcc/install/lib/gcc/i386-unknown-netbsdelf3.0/4.0.1
-L/home/bcosta/gcc/install/lib/gcc/i386-unknown-netbsdelf3.0/4.0.1/../../..
/home/bcosta/gcc/install/lib/libstdc++.so
-L/home/bcosta/gcc/build/i386-unknown-netbsdelf3.0/libstdc++-v3/src
-L/home/bcosta/gcc/build/i386-unknown-netbsdelf3.0/libstdc++-v3/src/.libs
-L/home/bcosta/gcc/build/gcc -lm
/home/bcosta/gcc/install/lib/gcc/i386-unknown-netbsdelf3.0/4.0.1/crtendS.o
/usr/lib/crtn.o  -Wl,-soname -Wl,libmyshared.so.0 -o
.libs/libmyshared.so.0.0
(cd .libs && rm -f libmyshared.so.0 && ln -s libmyshared.so.0.0
libmyshared.so.0)
(cd .libs && rm -f libmyshared.so && ln -s libmyshared.so.0.0
libmyshared.so)
ar cru .libs/libmyshared.a  libmyshared_la-myshared.o
ranlib .libs/libmyshared.a
creating libmyshared.la
(cd .libs && rm -f libmyshared.la && ln -s ../libmyshared.la libmyshared.la)