move all public headers to include/nng/ folder

This change makes embedding nng + nggpp (or other projects depending on
nng) in cmake easier.  The header files are moved to a separate include
directory.  This also makes installation of the headers easier, and
allows clearer identification of private vs public heade files.

Some additional cleanups were performed by @gedamore, but the main
credit for this change belongs with @gregorburger.

1 files changed, 4 insertions, 6 deletions

diff --git a/src/protocol/reqrep0/CMakeLists.txt b/src/protocol/reqrep0/CMakeLists.txt
index 70c075c1..bae31433 100644
--- a/src/protocol/reqrep0/CMakeLists.txt
+++ b/src/protocol/reqrep0/CMakeLists.txt
@@ -17,24 +17,22 @@ mark_as_advanced(NNG_PROTO_REP0)
 
 set(_DEFS)
 set(_SRCS)
-set(_HDRS)
 
 if (NNG_PROTO_REQ0)
     list(APPEND _DEFS -DNNG_HAVE_REQ0)
     list(APPEND _SRCS
         protocol/reqrep0/req.c protocol/reqrep0/xreq.c
-        protocol/reqrep0/req.h)
-    list(APPEND _HDRS protocol/reqrep0/req.h)
+        ${PROJECT_SOURCE_DIR}/include/nng/protocol/reqrep0/req.h)
+   
 endif()
 
 if (NNG_PROTO_REP0)
     list(APPEND _DEFS -DNNG_HAVE_REP0)
     list(APPEND _SRCS
         protocol/reqrep0/rep.c protocol/reqrep0/xrep.c
-        protocol/reqrep0/rep.h)
-    list(APPEND _HDRS protocol/reqrep0/rep.h)
+        ${PROJECT_SOURCE_DIR}/include/nng/protocol/reqrep0/rep.h)
+   
 endif()
 
 set(NNG_DEFS ${NNG_DEFS} ${_DEFS} PARENT_SCOPE)
 set(NNG_SRCS ${NNG_SRCS} ${_SRCS} PARENT_SCOPE)
-set(NNG_HDRS ${NNG_HDRS} ${_HDRS} PARENT_SCOPE)