relax automake; make boost explicit dependency

packages/sdskeyval/package.py

@@ -46,11 +46,12 @@ class Sdskeyval(AutotoolsPackage):
     depends_on('abtsnoozer')
     depends_on('libev')
     depends_on('autoconf@2.65:')
-    depends_on('automake@1.15:')
+    depends_on('automake@1.13.4:')
     depends_on('libtool', type=("build"))
     depends_on('pkg-config', type=("build"))
     depends_on('ch-placement')
     depends_on('ssg+mpi')
+    depends_on('boost+system+filesystem')
 
     # variable dependencies
     depends_on('berkeley-db', when="+bdb")