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punkrockguy318

Member

From: New Jersey

Registered: 2004-02-15

Posts: 711

Website

GCC Library Path

How can I add /usr/lib/X11R6 to my library path for GCC so I dont need to add
-L /usr/lib/X11R6 to every compilation?

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If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing.   1 Corinthians 13:2

farphel

Forum Fellow

From: New Hampshire - USA

Registered: 2003-09-18

Posts: 250

Website

Re: GCC Library Path

Add the paths to /etc/ld.so.conf and the run 'ldconfig' to regenerate the search path for the linker.  Your other option is to add the path(s) to the LD_LIBRARY_PATH environment variable.

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punkrockguy318

Member

From: New Jersey

Registered: 2004-02-15

Posts: 711

Website

Re: GCC Library Path

I did that... and it just says:  cannot find -lX11

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If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing.   1 Corinthians 13:2

farphel

Forum Fellow

From: New Hampshire - USA

Registered: 2003-09-18

Posts: 250

Website

Re: GCC Library Path

Are you sure you specified the correct path?  In your first post, you do not have it specified correctly.  Here's my /etc/ld.so.conf:

#
# /etc/ld.so.conf
#

/usr/X11R6/lib
/opt/mozilla/lib/mozilla-1.6
/opt/gnome/lib
# End of file

After you make sure the paths are correct, re-run 'ldconfig' as root.

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punkrockguy318

Member

From: New Jersey

Registered: 2004-02-15

Posts: 711

Website

Re: GCC Library Path

#
# /etc/ld.so.conf
#

/usr/X11R6/lib
/opt/qt/lib
/opt/gnome/lib

# End of file

g++ main.cpp -lX11

brings this...

/usr/bin/ld: cannot find -lX11
collect2: ld returned 1 exit status

What the heck!

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If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing.   1 Corinthians 13:2

farphel

Forum Fellow

From: New Hampshire - USA

Registered: 2003-09-18

Posts: 250

Website

Re: GCC Library Path

What do you get when you run this?

root@i8k$ ldconfig -v | grep X11

Here's what I get:

/usr/X11R6/lib:
        libX11.so.6 -> libX11.so.6.2

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punkrockguy318

Member

From: New Jersey

Registered: 2004-02-15

Posts: 711

Website

Re: GCC Library Path

Mine is exactly the same!

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If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing.   1 Corinthians 13:2

DanEE

Member

From: Fribourg, Switzerland

Registered: 2003-07-10

Posts: 43

Re: GCC Library Path

I have the same problem. Although I have the line /usr/X11R6/lib in ld.so.conf since a long time.

andy

Member

From: Germany

Registered: 2002-10-11

Posts: 374

Re: GCC Library Path

Careful, everybody !

/etc/ld.so.conf only configures the RUN-TIME search paths, not the LINK-TIME paths !

There is no universal method to include paths for link/compile time. You can try to set the enviornment variable LFLAGS, but that only works (sometimes) with make.

Nezmer

Member

Registered: 2008-10-24

Posts: 559

Website

Re: GCC Library Path

.......  . See gcc(1).

See the date of the thread .

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English is not my native language .