release 1.8.8

Author: backtracking

CHANGES

@@ -1,6 +1,10 @@
 
 * marks some incompatible change
 
+version 1.8.8, October 17, 2017
+-------------------------------
+ o fixed installation (Virgile Prevosto, Jacques-Pascal Deplaix)
+ o safe-string compatible (Jacques-Pascal Deplaix)
  * fixed method get_edge_layout of class abstract_model of DGraphModel.Make. The
    bug could have occured when there are several edges between two vertices.
  o [Traverse/Pack] added Dfs.fold and Dfs.fold_component (tail-recursive)

Makefile.in

@@ -112,7 +112,7 @@ graph.cmo: $(CMI) $(CMO)
 graph.cmx: $(CMI) $(CMX)
 	$(OCAMLOPT) $(INCLUDES) -pack -o $@ $^
 
-VERSION=1.8.7
+VERSION=1.8.8
 
 ifdef SOURCE_DATE_EPOCH
 BUILD_DATE=$(shell date -u -d "@$(SOURCE_DATE_EPOCH)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" 2>/dev/null || date)