ilist.h fails cpluspluscheck

In file included from ./src/include/utils/catcache.h:25:0,                from /tmp/cpluspluscheck.bt8VZr/test.cpp:3:
src/include/lib/ilist.h: In function ‘dlist_node* dlist_head_node(dlist_head*)’:
src/include/lib/ilist.h:470:39: error: invalid conversion from ‘void*’ to ‘dlist_node*’ [-fpermissive]
src/include/lib/ilist.h: In function ‘dlist_node* dlist_tail_node(dlist_head*)’:
src/include/lib/ilist.h:487:39: error: invalid conversion from ‘void*’ to ‘dlist_node*’ [-fpermissive]
In file included from ./src/include/utils/catcache.h:25:0,                from /tmp/cpluspluscheck.bt8VZr/test.cpp:3:
src/include/lib/ilist.h: In function ‘slist_node* slist_head_node(slist_head*)’:
src/include/lib/ilist.h:680:39: error: invalid conversion from ‘void*’ to ‘slist_node*’ [-fpermissive]
In file included from /tmp/cpluspluscheck.bt8VZr/test.cpp:3:0:
./src/include/lib/ilist.h: In function ‘dlist_node* dlist_head_node(dlist_head*)’:
./src/include/lib/ilist.h:470:39: error: invalid conversion from ‘void*’ to ‘dlist_node*’ [-fpermissive]
./src/include/lib/ilist.h: In function ‘dlist_node* dlist_tail_node(dlist_head*)’:
./src/include/lib/ilist.h:487:39: error: invalid conversion from ‘void*’ to ‘dlist_node*’ [-fpermissive]
In file included from /tmp/cpluspluscheck.bt8VZr/test.cpp:3:0:
./src/include/lib/ilist.h: In function ‘slist_node* slist_head_node(slist_head*)’:
./src/include/lib/ilist.h:680:39: error: invalid conversion from ‘void*’ to ‘slist_node*’ [-fpermissive]

Maybe some ifndef __cplusplus would help.