diff --git a/CUtils/Makefile.PL b/CUtils/Makefile.PL
index 8d5da2d45f460d3f2d3f1e7676756e72c67586bc..1087b15947dad65958826acff096aa3027f05fe8 100644
--- a/CUtils/Makefile.PL
+++ b/CUtils/Makefile.PL
@@ -9,9 +9,9 @@ WriteMakefile(
     ($] >= 5.005 ?     ## Add these new keywords supported since 5.005
       (ABSTRACT_FROM  => 'lib/ALTree/CUtils.pm', # retrieve abstract from module
        AUTHOR         => 'Claire Bardel <Claire.Bardel@univ-lyon1.fr>') : ()),
-    LIBS              => ['-lm ', '-lpthread'], # e.g., '-lm'
+    LIBS              => ['-lm ', '-lpthread', '-lgsl', '-lcblas'], # e.g., '-lm'
     DEFINE            => '', # e.g., '-DHAVE_SOMETHING'
-    INC               => '-I. -Ic_sources', # e.g., '-I. -I/usr/include/other'
+    INC               => '-ggdb3 -I. -Ic_sources', # e.g., '-I. -I/usr/include/other'
 	# Un-comment this if you add C files to link with later:
     # OBJECT            => '$(O_FILES)', # link all the C files too
     MYEXTLIB          => 'c_sources/libaltree-cutils$(LIB_EXT)',