Problems installing gsl gem

I can succesfully install the gsl library in my home directory, but when I try to install the gsl gem I get a big list of errors that I do not understand. I am wondering if someone could give me some idea why I could be getting those errors. I can say I have:

Installed gsl succesfully; at least that is what it looked like. I pointed the path to gsl-config

This is what the error log looks like:

  Building native extensions.  This could take a while...
  ERROR:  Error installing gsl:
    ERROR: Failed to build gem native extension.

  /home/ted/ruby-1.9.1/bin/ruby extconf.rb install gsl
  checking gsl version... 1.15
  checking gsl cflags... -I/home/ted/gsl-1.15/include
  checking for main() in -lcblas... no
  checking gsl libs... -L/home/ted/gsl-1.15/lib -lgsl -lgslcblas -lm
  checking for round()... no
  checking for rngextra/rngextra.h... no
  checking for qrngextra/qrngextra.h... no
  checking for ool/ool_version.h... no
  checking for tensor/tensor.h... no
  checking for jacobi.h... no
  checking for gsl/gsl_cqp.h... no
  checking for gsl/gsl_multimin_fsdf.h... no
  checking for gsl_poly_solve_quartic() in -lgsl... no
  checking for gsl_eigen_francis() in -lgsl... no
  checking for ndlinear/gsl_multifit_ndlinear.h... no
  checking for alf/alf.h... no
  checking rb-gsl version...1.14.7
  checking ruby version... 1.9.1
  checking for graph... no
  checking for narray.h... yes
  checking for tamu_anova/tamu_anova.h... no
  checking for main() in -ltamuanova... no
  creating Makefile

  make
  gcc -I. -I/home/ted/ruby-1.9.1/include/ruby-1.9.1/x86_64-linux -I/home/ted/ruby-1.9.1/include/ruby-1.9.1/ruby/backward -I/home/ted/ruby-1.9.1/include/ruby-1.9.1 -I. -DHAVE_NARRAY_H  -I/home/ted/ruby-1.9.1/lib/ruby/gems/1.9.1/gems/narray-0.6.0.1/. -I/home/ted/ruby-1.9.1/lib/ruby/site_ruby/1.9.1/x86_64-linux    -fPIC  -Wall -I../include  -I/home/ted/gsl-1.15/include  -o sf_bessel.o -c sf_bessel.c
  In file included from sf_bessel.c:13:
  ../incl