[Cortexassembler-variation] install error

[w y <yw...@we...>]

Dear Zam,
       I encounted an error when I tried to install cortex_var. I went to
the gsl-1.15 directory and typed "make", there was no error. However, when
I typed "make cortex_var" in the root directory, I got an error. Part of
the information is as follows:

mkdir -p bin; cc -Iinclude/cortex_var/core -Iinclude/basic
-Iinclude/hash_table   -Iinclude/cortex_var/many_colours
-Iinclude/basic/event_encoding/base_encoding -Igsl-1.15 -Igsl-1.15/gsl -lm
-lgsl -lgslcblas -m64  -Wall  -O3   -DNUMBER_OF_BITFIELDS_IN_BINARY_KMER=1
-DNUMBER_OF_COLOURS=31  -o bin/cortex_var_""31"_c"31
src/obj/cortex_var/many_colours/genome_complexity.o
src/obj/cortex_var/many_colours/global.o
src/obj/cortex_var/many_colours/db_complex_genotyping.o
src/obj/cortex_var/many_colours/cortex_var.o
src/obj/cortex_var/many_colours/binary_kmer.o
src/obj/cortex_var/many_colours/element.o
src/obj/cortex_var/many_colours/seq.o
src/obj/cortex_var/many_colours/hash_value.o
src/obj/cortex_var/many_colours/hash_table.o
src/obj/cortex_var/many_colours/dB_graph.o
src/obj/cortex_var/many_colours/file_reader.o
src/obj/cortex_var/many_colours/dB_graph_population.o
src/obj/cortex_var/many_colours/db_variants.o
src/obj/cortex_var/many_colours/cmd_line.o
src/obj/cortex_var/many_colours/event_encoding.o
src/obj/cortex_var/many_colours/graph_info.o
src/obj/cortex_var/many_colours/db_differentiation.o
src/obj/cortex_var/many_colours/model_selection.o
src/obj/cortex_var/many_colours/maths.o
/usr/bin/ld: cannot find -lgsl
collect2: ld returned 1 exit status
make: *** [cortex_var] Error 1

      What's more, when I searched for the library gsl-bin, libgsl0ldbl,
libgsl0-dev on the internet, I only got the .deb file. But my system is
redhat linux: Linux node8 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT
2009 x86_64 x86_64 x86_64 GNU/Linux.

      How should I deal with these problems?

      Any help will be appreciated.

     Andrew.