it seems that parallel build sometimes fails for gdbm.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@40993 20353a03-c40f-0410-a6d1-a30d3c3de9de

buildout/software-profiles/gdbm.cfg

@@ -22,3 +22,6 @@ patches = ${gdbm-nochange-patch-download:location}/${gdbm-nochange-patch-downloa
 includedir = ${buildout:parts-directory}/${:_buildout_section_name_}/include
 make-targets =
   install install-compat includedir=${:includedir}/gdbm && rm -f ${:includedir}/*.h && ln -sf gdbm/gdbm.h ${:includedir}/gdbm.h
+# it seems that parallel build sometimes fails for gdbm.
+make-options =
+  -j1