* g++, RH 2.1 and rpath
@ 2003-07-02 14:52 Ajay Bansal
2003-07-02 15:20 ` Alexandre Oliva
0 siblings, 1 reply; 6+ messages in thread
From: Ajay Bansal @ 2003-07-02 14:52 UTC (permalink / raw)
To: gcc-help; +Cc: Pankaj Garg
Hi All
I am compiling a program which links with a certain library.
g++ -o test test.cpp -L/home/thirdparty/lib -llib1
/usr/bin/ld: warning: liblib2.so, needed by
/home/thirdparty/lib/liblib1.so, not found (try using -rpath or
-rpath-link)
/home/thirdparty/lib/liblib1.so: undefined reference to `funcGetString'
collect2: ld returned 1 exit status
So I use rpath. But then I get following error
g++ -o test test.cpp -rpath /home/thirdparty/lib -llib1
g++: unrecognized option `-rpath'
/home/thirdparty/lib: file not recognized: Invalid argument
collect2: ld returned 1 exit status
Then I use ld instead of rpath (But in my actual program I HAVE to use
g++ for linking)
ld -o test test.cpp -rpath /home/thirdparty/lib -L/home/thirdparty/lib
-llib1
ld: warning: cannot find entry symbol _start; defaulting to 080483a8
ldap.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
What should I do????? Please note that this is just a sample output. I
link to many thirdpaty libs. Some of them has 10 or more dependent libs
so I can not link against all of them. Linker should find the dependent
libs by itself.
Regards
Ajay
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: g++, RH 2.1 and rpath
2003-07-02 14:52 g++, RH 2.1 and rpath Ajay Bansal
@ 2003-07-02 15:20 ` Alexandre Oliva
2003-07-02 17:14 ` John Love-Jensen
0 siblings, 1 reply; 6+ messages in thread
From: Alexandre Oliva @ 2003-07-02 15:20 UTC (permalink / raw)
To: Ajay Bansal; +Cc: gcc-help, Pankaj Garg
On Jul 2, 2003, "Ajay Bansal" <Ajay_Bansal@infosys.com> wrote:
> /usr/bin/ld: warning: liblib2.so, needed by
> /home/thirdparty/lib/liblib1.so, not found (try using -rpath or
> -rpath-link)
> So I use rpath. But then I get following error
-rpath, as you found out, is a flag to the linker, not to the
compiler. You can get the compiler to pass flags to the linker using
the -Wl, option: -Wl,-rpath,/home/thirdparty/lib, or -Xlinker -rpath
-Xlinker /home/thirdparth/lib.
BTW, what's RH 2.1?
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist Professional serial bug killer
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: g++, RH 2.1 and rpath
2003-07-02 15:20 ` Alexandre Oliva
@ 2003-07-02 17:14 ` John Love-Jensen
2003-07-03 19:07 ` Alexandre Oliva
0 siblings, 1 reply; 6+ messages in thread
From: John Love-Jensen @ 2003-07-02 17:14 UTC (permalink / raw)
To: Alexandre Oliva; +Cc: gcc-help
RH 2.1 is the commercial (i.e., for money, comes with technical support)
release of Red Hat.
--Eljay
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: g++, RH 2.1 and rpath
2003-07-02 17:14 ` John Love-Jensen
@ 2003-07-03 19:07 ` Alexandre Oliva
0 siblings, 0 replies; 6+ messages in thread
From: Alexandre Oliva @ 2003-07-03 19:07 UTC (permalink / raw)
To: John Love-Jensen; +Cc: gcc-help
On Jul 2, 2003, John Love-Jensen <eljay@adobe.com> wrote:
> RH 2.1 is the commercial (i.e., for money, comes with technical support)
> release of Red Hat.
Red Hat has no product named RH 2.1. I suppose you mean Red Hat
Enterprise Linux AS 2.1, formerly known as Red Hat Advanced Server
2.1. Also, it's as commercial as Red Hat Linux 9, the difference is
the amount and level of support you get. But we're way off topic now
:-)
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist Professional serial bug killer
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: g++, RH 2.1 and rpath
2003-07-02 15:24 Ajay Bansal
@ 2003-07-03 19:09 ` Alexandre Oliva
0 siblings, 0 replies; 6+ messages in thread
From: Alexandre Oliva @ 2003-07-03 19:09 UTC (permalink / raw)
To: Ajay Bansal; +Cc: gcc-help, Pankaj Garg
On Jul 2, 2003, "Ajay Bansal" <Ajay_Bansal@infosys.com> wrote:
> If I use rpath, do I still need to use -L for specifying library search
> paths?
-rpath encodes directories in the run-time search path of an
executable, that the dynamic linker (ld.so) uses to find shared
libraries. -L tells the linker (ld) where to look for libraries
specified in the command line, at link time. -rpath-link tells the
linker (ld) where to look for dynamic libraries that are mentioned as
dependencies of other dynamic libraries that are linked. IIRC, -rpath
is the default for -rpath-link, but definitely not for -L.
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist Professional serial bug killer
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: g++, RH 2.1 and rpath
@ 2003-07-02 15:24 Ajay Bansal
2003-07-03 19:09 ` Alexandre Oliva
0 siblings, 1 reply; 6+ messages in thread
From: Ajay Bansal @ 2003-07-02 15:24 UTC (permalink / raw)
To: Alexandre Oliva; +Cc: gcc-help, Pankaj Garg
If I use rpath, do I still need to use -L for specifying library search
paths?
-----Original Message-----
From: Alexandre Oliva [mailto:aoliva@redhat.com]
Sent: Wednesday, July 02, 2003 8:50 PM
To: Ajay Bansal
Cc: gcc-help@gcc.gnu.org; Pankaj Garg
On Jul 2, 2003, "Ajay Bansal" <Ajay_Bansal@infosys.com> wrote:
> /usr/bin/ld: warning: liblib2.so, needed by
> /home/thirdparty/lib/liblib1.so, not found (try using -rpath or
> -rpath-link)
> So I use rpath. But then I get following error
-rpath, as you found out, is a flag to the linker, not to the compiler.
You can get the compiler to pass flags to the linker using the -Wl,
option: -Wl,-rpath,/home/thirdparty/lib, or -Xlinker -rpath -Xlinker
/home/thirdparth/lib.
BTW, what's RH 2.1?
--
Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist Professional serial bug killer
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-07-03 19:09 UTC | newest]
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2003-07-02 14:52 g++, RH 2.1 and rpath Ajay Bansal
2003-07-02 15:20 ` Alexandre Oliva
2003-07-02 17:14 ` John Love-Jensen
2003-07-03 19:07 ` Alexandre Oliva
2003-07-02 15:24 Ajay Bansal
2003-07-03 19:09 ` Alexandre Oliva
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