I'm running Ubuntu 11.10 on a Dell Inspiron 1545 laptop (Intel). How can I fix this? Thanks for any suggestions. Where can I get libnpsol.a?

R version 2.13.1 (2011-07-08)

> source('https://openmx.ssri.psu.edu/getOpenMx.R')
Installing package(s) into ‘/usr/local/lib/R/site-library’
(as ‘lib’ is unspecified)
trying URL 'https://openmx.ssri.psu.edu/packages/src/contrib/OpenMx_1.1.1-1785.tar.gz'
Content type 'application/x-gzip' length 6362441 bytes (6.1 Mb)

opened URL

downloaded 6.1 Mb

• installing source package ‘OpenMx’ ...
  checking for gcc... gcc
  checking for C compiler default output file name... a.out
  checking whether the C compiler works... yes
  checking whether we are cross compiling... no
  checking for suffix of executables...
  checking for suffix of object files... o
  checking whether we are using the GNU C compiler... yes
  checking whether gcc accepts -g... yes
  checking for gcc option to accept ISO C89... none needed
  checking whether gcc is installed... yes
  checking build system type... i686-pc-linux-gnu
  checking host system type... i686-pc-linux-gnu
  checking if gcc accepts -dumpversion option... yes
  checking gcc version... 4.6.1
  checking for gawk... no
  checking for mawk... mawk
  checking for inst/npsol/linux/x86/gcc4.6/libnpsol.a... no
  configure: error: npsol library not found
  ERROR: configuration failed for package ‘OpenMx’
• removing ‘/usr/local/lib/R/site-library/OpenMx’

The downloaded packages are in
‘/tmp/Rtmpjozqiw/downloaded_packages’
Warning message:
In install.packages(pkgs = c("OpenMx"), repos = repos) :
installation of package 'OpenMx' had non-zero exit status