--- modules/gsl.lsp-orig	2017-01-25 14:42:21.000000000 -0200

+++ modules/gsl.lsp	2017-04-22 04:27:14.236572746 -0300

@@ -170,6 +170,7 @@

 		(= ostype "Windows") "libgsl-0.dll" ; 32-bit or 64-bit

 		(= ostype "OSX")   "libgsl.dylib" ; 32-bit or 64-bit

 		(= ostype "Linux") "/usr/local/lib/libgsl.so" ; 32-bit or 64-bit

+		(= ostype "Linux") "/usr/lib64/libgmp.so" ; Linux 64

 	))

 ; load libgslcblas which contans functions referenced by libgsl