+about split in several libraries
+
+There are several options:
+
+1/ one library, config options to select libyaml, libedit
+ - need to manage dependencies in build system
+
+2/ one library for ecoli-core, one for ecoli-yaml, one for
+ ecoli-edit
+ - extra complexity
+
+3/ one library with core + yaml + edit
+ dependency is managed at runtime
+