So I have managed to successfully install GSL 2.6 and have the Math::GSL install recognize it.
However something has gone wrong, as Math::GSL will not pass the build test.
I'm getting what seems to be a familiar "cannot open shared object file" error message.
The .so files are there, but there seems to be a missing pointer to them.
My suspicion is a missing "LD_LIBRARY_PATH during compile time, but I have no idea what to do about it.
Below are some of the compile time flags, and an example of a the main error message.

ccflags         = -fPIC -I/home/stevenc/GSL2.6/include -D_REENTRANT -D
+_GNU_SOURCE -fwrapv -fno-strict-aliasing -pipe -fstack-protector-stro
+ng -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Wall -Wno-sometimes-un
+initialized -Wno-unused-function -Wno-unused-value -Wno-unused-functi
+on -Wno-unused-variable -Wno-gnu -g -fPIC -fno-omit-frame-pointer -I/
+home/stevenc/GSL2.6/include
ldflags         = -shared -L/home/stevenc/GSL2.6/lib64 -lgsl -lgslcbla
+s -lm -fPIC -fno-omit-frame-pointer
PERL5LIB        = /home/stevenc/perl5/lib/perl5:/home/stevenc/perl5/li
+b/perl5
LD_LIBRARY_PATH =
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/Chebyshev.t ...... Can't load '/home/stevenc/.cpan/build/Math-GSL-0.4
+4-0/blib/arch/auto/Math/GSL/Chebyshev/Chebyshev.so' for module Math::
+GSL::Chebyshev: libgsl.so.25: cannot open shared object file: No such
+ file or directory at /usr/lib/perl5/5.38.2/x86_64-linux-thread-multi
+/DynaLoader.pm line 206.
 at /home/stevenc/.cpan/build/Math-GSL-0.44-0/blib/lib/Math/GSL/Chebys
+hev.pm line 11.
Compilation failed in require at t/Chebyshev.t line 5.
BEGIN failed--compilation aborted at t/Chebyshev.t line 5.
t/Chebyshev.t ...... Dubious, test returned 2 (wstat 512, 0x200)
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Please advise.....