[ncl-install] Problems with installation

[Jose Villalobos-Enciso]

Hi,

I am using Linux 2.6.31-22-generic #65-Ubuntu SMP Thu Sep 16 15:48:58 UTC
2010 i686 GNU/Linux

I have installed NCAR Command Language Version 5.1.1. When testing the
installation the following appears:

carlos at carlos-laptop:~$ ncargex cpex08

NCAR Graphics Fortran  Example <cpex08>

 Copying cpex08.f

 Copying cpexcc.f

Compiling and linking...
gfortran -fPIC -fno-second-underscore -fno-range-check -o cpex08 cpexcc.f
cpex08.f -L/usr/local/lib -lncarg -lncarg_gks -lncarg_c -lX11 -lXext -lpng
-lz
/usr/bin/ld: cannot find -lpng
collect2: ld returned 1 exit status

The compile and link failed.

Could you please help me?

Thanks in advance,

Jose
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