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Re: libtool does not add stdc++ when linking on Linux

From: Andreas Schwab
Subject: Re: libtool does not add stdc++ when linking on Linux
Date: Thu, 19 Jun 2008 12:48:35 +0200
User-agent: Gnus/5.110009 (No Gnus v0.9) Emacs/22.2 (gnu/linux)

Christian Thalinger <address@hidden> writes:

> On Thu, 2008-06-19 at 11:57 +0200, Andreas Schwab wrote:
>> Christian Thalinger <address@hidden> writes:
>> > Linux:
>> > /bin/sh ../../libtool --tag=CC --mode=link gcc -std=c99 -pedantic -Wall
>> > -Wno-long-long -m64 -D__X86_64__ -D__LINUX__ -D_POSIX_C_SOURCE=200112L
>> > -o libjvm.la -rpath /usr/local/cacao/lib -version-info
>> > 1:0:0   ../../src/fdlibm/libfdlibm.la ../../src/mm/libmm.la 
>> > ../../src/native/libnative.la ../../src/threads/libthreads.la 
>> > ../../src/toolbox/libtoolbox.la ../../src/vm/libvm.la 
>> > ../../src/vmcore/libvmcore.la  -lz -lpthread -lopcodes -lbfd -liberty -ldl 
>> When none of these libraries depend on libstdc++ then there is nothing
>> else that adds that dependency.
> Right, but ../../src/vm/libvm.la should depend on it, as it does on
> OpenSolaris, since it contains a C++ object file.

Why does that follow?  Just because an object is compiled with the C++
compiler does not mean that it uses any features from libstdc++.


Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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