Building pvData using R3.15.4 fails

[DPCuneo <dpcuneo@lbl.gov>]

I'm trying experiment with PVAcess while using R3.15.4, since we won't be switching to 7 very soon.
In particular, I cloned the repo at: https://github.com/mdavidsaver/pva2pva .

I read the README.md and set the two environment variables:
exported EPICS_BASE and PVCOMMONS (I have EPICS4 built).

make produces the error:

/usr/bin/g++  -D_GNU_SOURCE -D_DEFAULT_SOURCE            -D_X86_64_  -DUNIX  -Dlinux     -O3 -g   -Wall      -mtune=generic     -m64 -fPIC -I. -I../O.Common -I. -I. -I.. -I../../src/misc -I../../src/pv -I../../src/factory -I../../src/property -I../../src/copy -I../../src/pvMisc -I../../src/json -I../../include/compiler/gcc -I../../include/os/Linux -I../../include         -MM -MF TypeFunc.d  ../../src/factory/TypeFunc.cpp
../../src/factory/TypeFunc.cpp:19:37: fatal error: dbDefs.h: No such file or directory
 #include "dbDefs.h" // for NELEMENTS

I saw another TT thread with this exact error, however it was in reference to EPICS7 and a git clone issue, rather than EPICS 3.15.x build.

The header "dbDefs.h" exists in my EPICS base in two locations:
>find /usr/local/epics/R3.15.4/base-3.15.4 -type f -name "dbDefs.h"

/usr/local/epics/R3.15.4/base-3.15.4/src/libCom/misc/dbDefs.h
/usr/local/epics/R3.15.4/base-3.15.4/include/dbDefs.h

For fun, I included "/usr/local/epics/R3.15.4/base-3.15.4/include" in the g++ call above, and just received more errors about missing headers.

I'm new to EPICS and have limited experience with C/C++. Perhaps I'm missing something ?

-- 
Daniel P Cuneo
Controls Systems Engineer
x5439
46-172G