epicsRingPointer.h error C2664: 'delete' : cannot convert parameter

["J. Lewis Muir" <jlmuir@imca-cat.org>]

Hello, Tech-Talkers!

I'm trying to build EPICS Base 3.14.12.4 (with the Known Problems
patches applied) for win32-x86 on Windows 7 using Microsoft Visual C++
6 (yes, a very old compiler).  The build doesn't get very far before
failing with the following output:

===
cl /nologo /EHsc /GR -c               /nologo /D__STDC__=0 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_NONSTDC_NO_DEPRECATE   /Ox /GL   /W3 /w44355       /MD  /TP   -I. -I..\\O.Common -I. -I..\\..\\..\\src\\libCom\\osi\\os\\WIN32 -I..\\..\\..\\src\\libCom\\osi\\os\\default -I.. -I..\\..\\..\\src\\libCom\\bucketLib -I..\\..\\..\\src\\libCom\\ring -I..\\..\\..\\src\\libCom\\calc -I..\\..\\..\\src\\libCom\\cvtFast -I..\\..\\..\\src\\libCom\\cppStd -I..\\..\\..\\src\\libCom\\cxxTemplates -I..\\..\\..\\src\\libCom\\dbmf -I..\\..\\..\\src\\libCom\\ellLib -I..\\..\\..\\src\\libCom\\env -I..\\..\\..\\src\\libCom\\error -I..\\..\\..\\src\\libCom\\fdmgr -I..\\..\\..\\src\\libCom\\freeList -I..\\..\\..\\src\\libCom\\gpHash -I..\\.. \\..\\src\\libCom\\iocsh -I..\\..\\..\\src\\libCom\\logClient -I..\\..\\..\\src\\libCom\\macLib -I..\\..\\..\\src\\libCom\\misc -I..\\..\\..\\src\\libCom\\osi -I..\\..\\..\\src\\libCom\\taskwd -I..\\..\\..\\src\\libCom\\timer -I..\\..\\..\\src\\libCom\\tsDefs -I..\\..!
 \\..\\include\\os\\WIN32 -I..\\..\\..\\include..\\..\\..\\src\\libCom\\ring\\epicsRingPointer.cpp
Command line warning D4002 : ignoring unknown option '/GL'
Command line warning D4002 : ignoring unknown option '/w44355'
epicsRingPointer.cpp
..\..\..\src\libCom\ring\epicsRingPointer.h(93) : error C2664: 'delete' : cannot convert parameter 1 from 'void *volatile * ' to 'void *'
        Conversion loses qualifiers
        ..\..\..\src\libCom\ring\epicsRingPointer.cpp(82) : while compiling class-template member function '__thiscall epicsRingPointer<void>::~epicsRingPointer<void>(void)'
../../../configure/RULES_BUILD:215: recipe for target 'epicsRingPointer.obj' failed
gmake[3]: *** [epicsRingPointer.obj] Error 2
gmake[3]: Leaving directory 'C:/opt/epics-base/src/libCom/O.win32-x86'
../../configure/RULES_ARCHS:63: recipe for target 'install.win32-x86' failed
gmake[2]: *** [install.win32-x86] Error 2
gmake[2]: Leaving directory 'C:/opt/epics-base/src/libCom'
../configure/RULES_DIRS:70: recipe for target 'libCom.install' failed
gmake[1]: *** [libCom.install] Error 2
gmake[1]: Leaving directory 'C:/opt/epics-base/src'
configure/RULES_DIRS:70: recipe for target 'src.install' failed
gmake: *** [src.install] Error 2
gmake: Leaving directory 'C:/opt/epics-base'
===

Obviously, it seems to be unhappy with the "delete" on line 93 of
epicsRingPointer.h, but I don't know how to fix it.  Here's a Microsoft
reference for compiler error C2664 for Visual Studio 2013 (not the
compiler used) in case it helps:

  https://msdn.microsoft.com/en-us/library/s5b150wd(v=vs.120).aspx

Any ideas?

Thank you!

Lewis