[MacPorts] #45305: bind9: opportunistically links with json-c but build fails when jsoncpp is active

[MacPorts]

#45305: bind9: opportunistically links with json-c but build fails when jsoncpp is
active
--------------------------+---------------------
 Reporter:  ryandesign@…  |      Owner:  dluke@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.3.99
 Keywords:                |       Port:  bind9
--------------------------+---------------------
 If the jsoncpp and json-c ports are both installed and active, building
 bind9 fails with:

 {{{
 :info:build In file included from app.c:40:
 :info:build In file included from ../include/isc/mem.h:27:
 :info:build In file included from ../include/isc/json.h:29:
 :info:build In file included from /opt/local/include/json/json.h:9:
 :info:build In file included from /opt/local/include/json/autolink.h:9:
 :info:build /opt/local/include/json/config.h:73:1: error: unknown type
 name 'namespace'
 :info:build namespace Json {
 :info:build ^
 :info:build /opt/local/include/json/config.h:73:15: error: expected ';'
 after top level declarator
 :info:build namespace Json {
 :info:build               ^
 :info:build               ;
 }}}

 If jsoncpp is active but json-c is not, configure fails with:

 {{{
 checking for json library... yes
 checking for library containing json_object_new_int64... no
 configure: error: found libjson include but not library.
 }}}

 If json-c is active but jsoncpp is not active, bind9 builds successfully
 and links with the json-c library.

 If neither json-c nor jsoncpp are active, bind9 builds successfully, but
 without json support.

 I believe the problem relates to the fact that the json-c headers have
 recently changed location in order to not conflict with jsoncpp. bind9 may
 still be erroneously looking for json-c's headers in their old location.

 Also, bind9 either needs to declare a dependency on json-c, or not use it
 even if it is already installed.

-- 
Ticket URL: <https://trac.macports.org/ticket/45305>
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