RE: [ncl-install] ncl rhel6 binary install - error while testing

Hi Mary,

Thanks very much for the quick response. I would like to transition to
ncl at some point, but I have ncarg programs from a while back and would
like to write similar programs until I get fully familiar with ncl.
Thanks for your suggestions. Here is the complete output without any
changes, when I execute the command "ncargex cpex08 -clean":

NCAR Graphics Fortran Example <cpex08>

  Copying cpex08.f

  Copying cpexcc.f

Compiling and linking...

gfortran -fPIC -fno-second-underscore -O -o cpex08 cpexcc.f cpex08.f
-L/usr/local/ncl-6.1.2/lib -L/usr/X11R6/lib64 -lncarg -lncarg_gks
-lncarg_c -lX11 -lXext -lcairo -lfontconfig -lpixman-1 -lfreetype
-lexpat -lpng -lz -lpthread -lbz2 -lXrender

/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../libXext.so when
searching for -lXext

/usr/bin/ld: skipping incompatible /usr/lib/libXext.so when searching
for -lXext

/usr/bin/ld: cannot find -lXext

collect2: ld returned 1 exit status

The compile and link failed.

Next, I modified the syslibdir in $NCARG_ROOT/bin/ncargf77. It
originally had "-L/usr/X11R6/lib64". That directory is non-existent. I
changed it to "-L/usr/lib64" and executed the command again, but still
got the same error (except for the change in the path):

NCAR Graphics Fortran Example <cpex08>

  Copying cpex08.f

  Copying cpexcc.f

Compiling and linking...

gfortran -fPIC -fno-second-underscore -O -o cpex08 cpexcc.f cpex08.f
-L/usr/local/ncl-6.1.2/lib -L/usr/lib64 -lncarg -lncarg_gks -lncarg_c
-lX11 -lXext -lcairo -lfontconfig -lpixman-1 -lfreetype -lexpat -lpng
-lz -lpthread -lbz2 -lXrender

/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../libXext.so when
searching for -lXext

/usr/bin/ld: skipping incompatible /usr/lib/libXext.so when searching
for -lXext

/usr/bin/ld: cannot find -lXext

collect2: ld returned 1 exit status

The compile and link failed.

I tried "yum update libXext" and "yum reinstall libXext", but to no
avail - I am still getting the same message.

Thanks,

Prakash

************************************************

Prakash Doraiswamy, Ph.D.

Research Environmental Scientist-2

Environmental & Industrial Sciences Division

RTI International

3040 East Cornwallis Road

Post Office Box 12194

Research Triangle Park, NC 27709-2194

Ph: 919-990-8648

e-mail: pdoraiswamy@rti.org <mailto:pdoraiswamy@rti.org>

************************************************

From: Mary Haley [mailto:haley@ucar.edu]
Sent: Thursday, July 04, 2013 7:45 PM
To: Doraiswamy, Prakash
Cc: ncl-install@ucar.edu
Subject: Re: ncl rhel6 binary install - error while
testing

Hi,

If you plan to just use NCL, then don't worry about the fact that
"ncargex cpex08" failed. You only need this to work if you plan to
write NCAR Graphics C or Fortran programs and compile them.

If you really want to get this to work, then it looks like either your
compiler is finding the wrong Xext library on your system, or else you
have an incorrect installation of it.

You didn't include the full output from "ncargex cpex08", so I'm not
sure what "-L" paths it is using, but my guess it that it needs
"-L/usr/lib64" on the compile line.

You might try editing $NCARG_ROOT/bin/ncargf77

and modify the line that looks something like this:

set syslibdir = "-L/usr/lib"

to have something like this:

set syslibdir = "-L/usr/lib64"

The "ncargf77" command gets called by the "ncargex" command, so once you
make this change and save the file, try running the "ncargex cpex08
-clean" command again.

--Mary

On Jul 3, 2013, at 4:31 PM, "Doraiswamy, Prakash" <pdoraiswamy@rti.org>
wrote:

Hi,

I downloaded the following binary version of the NCL/NCARG package:

ncl_ncarg-6.1.2.Linux_RHEL6.2_x86_64_nodap_gcc472.tar.gz

and placed the extracted folders in /usr/local and updated NCARG_ROOT
path in my cshrc file.

When I tested the installation: "ng4ex gsun01n" worked fine, but the
ncarg test "ncargex cpex08" failed. Here is the error message I am
getting:

/usr/bin/ld: skipping incompatible
/usr/lib/gcc/x86_64-redhat-linux/4.4.6/../../../libXext.so when
searching for -lXext

/usr/bin/ld: skipping incompatible /usr/lib/libXext.so when searching
for -lXext

/usr/bin/ld: cannot find -lXext

Collect2: ld returned 1 exit status

The compile and link failed.

I see the following files installed when I do ls *Xext* in /usr/lib and
/usr/lib64:

/usr/lib/libXext.so (symbolic link to so.6.4.0)

/usr/lib/libXext.so.6 (symbolic link)

/usr/lib/libXext.so.6.4.0

/usr/lib64/libXext.so.6

/usr/lib64/libXext.so.6.4.0

I have RHEL6 on my cluster. gcc -v returns "gcc version 4.4.6 20120305
(Red Hat 4.4.6-4) (GCC)"

Can you please guide as to where the problem might be? I even tried
with the binary ending in gcc446.tar.gz, but still got the same message.
Thanks for your help.

Thanks,

Prakash

************************************************

Prakash Doraiswamy, Ph.D.

Research Environmental Scientist-2

Environmental & Industrial Sciences Division

RTI International

3040 East Cornwallis Road

Post Office Box 12194

Research Triangle Park, NC 27709-2194

Ph: 919-990-8648

e-mail: pdoraiswamy@rti.org <mailto:pdoraiswamy@rti.org>

************************************************

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Received on Fri Jul 5 08:38:09 2013