Re: [Pandora] [offtopic] linking with external .a files

[uaca]

5~On Sat, Mar 29, 2003 at 10:03:43PM +0100, address@hidden wrote:
> 
> Hi
> 
> 
> How should I build a component with an external .a file?
> 
> I want to add features to a component already build and now I want to add
> some external funcionality, with it's available as a .a file
> 
> where should begin?


finally It seems I've got it running by hand, I found the following problems
while compiling pandora with --enable-all-static in the linking stage:

/home/ulisses/w/pandora-12-12-02/libpandora/.libs/libputil.a(ltdl.o): In
function ys_dl_open':
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:971: undefined reference
to lopen'
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:975: undefined reference
to lerror'
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:975: undefined reference
to lerror'
/home/ulisses/w/pandora-12-12-02/libpandora/.libs/libputil.a(ltdl.o): In
function ys_dl_close':
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:988: undefined reference
to lclose'
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:990: undefined reference
to lerror'
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:990: undefined reference
to lerror'
/home/ulisses/w/pandora-12-12-02/libpandora/.libs/libputil.a(ltdl.o): In
function ys_dl_sym':
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:1003: undefined reference
to lsym'
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:1007: undefined reference
to lerror'
/home/ulisses/w/pandora-12-12-02/libpandora/ltdl.c:1007: undefined reference
to lerror'

this seems to happen because the link command like doesn't include
/usr/lib/libdl.a (I fixed manually in the Makefile)

previously to that

I find the following message

/bin/sh ../libtool --mode=link g++  -g -O2 -pipe -fno-rtti -fno-exceptions
-g -fno-weak -Wall -Wno-u
  nused -Wmissing-prototypes -Wstrict-prototypes  -O2 -D_REENTRANT    -o
pandora -all-static -export-dynamic -dlopen ../pandora_components/libpbase.la 
-dlopen
../pandora_components/libpcache.la -dlopen ../pandora_components/libpcontrol.la 
-dlopen
../pandora_components/libpcore.la -dlopen ../pandora_compo
  nents/libpdns.la -dlopen ../pandora_components/libpeval.la -dlopen
../pandora_components/libpguile.la  -dlopen ../pandora_components/libphttp.la 
-dlopen
../pandora_components/libpicmp.la -dlopen ../pandora_components/libpicp.la 
-dlopen ../pandora_components/libpip.la -dlopen
../pandora_components/libprpc.la -dlopen ../pandora_components/libpsys.la 
-dlopen
../pandora_components/libptcp.la -dlopen ../pandora_components/libptest.la 
-dlopen ../pandora_components/libpudp.la
-dlopen ../pandora_components/libpvvm.la -dlopen 
../pandora_components/libpw2n.la main.o
../libpandora/libpandora.la  
libtool: link: warning: 
C_LIBTOOL_DLOPEN' not used. Assuming no dlopen support.
                        ^^^^^^^^^^^^^^^^^

some info about libtool:


grep libtool configure.log

checking if libtool supports shared libraries... yes
configure: creating libtool
appending configuration tag "CXX" to libtool
appending configuration tag "GCJ" to libtool
checking whether libtool supports -dlopen/-dlpreopen... no
                                  ^^^^^^^^^^^^^^^^^^^^^^^^
checking if libtool supports shared libraries... yes
configure: creating libtool
appending configuration tag "CXX" to libtool
appending configuration tag "GCJ" to libtool


what development environment do you use? (OS/distro, gcc version...)


I'm using redhat-7.2:

gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-112.7.2)
glibc-2.2.4-31
glibc-devel-2.2.4-31
libstdc++-devel-2.96-112.7.2
libstdc++-2.96-112.7.2
binutils-2.11.90.0.8-12 (maybe this is an upgraded version)

This is pandora as of 12-12-2002 but also happens exactly with pandora-current



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