Experimental Physics and
Industrial Control System

Hello,
How to resolve these errors which I am getting while building EPICS base?

[root@localhost base-3.14.12.1]# make
make -C ./configure install
make[1]: Entering directory `/home/epics/EPICS/base-3.14.12.1/configure'
make -C O.linux-x86 -f ../Makefile TOP=../.. T_A=linux-x86 install
make[2]: Entering directory `/home/epics/EPICS/base-3.14.12.1/configure/O.linux-x86'
make[2]: Nothing to be done for `install'.
make[2]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/configure/O.linux-x86'
make[1]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/configure'
make -C ./src install
make[1]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src'
make -C ./tools install
make[2]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/tools'
make -C O.linux-x86 -f ../Makefile TOP=../../.. T_A=linux-x86 install
make[3]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/tools/O.linux-x86'
make[3]: Nothing to be done for `install'.
make[3]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/tools/O.linux-x86'
make[2]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/tools'
make -C ./makeBaseApp install
make[2]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseApp'
make -C O.linux-x86 -f ../Makefile TOP=../../.. T_A=linux-x86 install
make[3]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseApp/O.linux-x86'
make[3]: Nothing to be done for `install'.
make[3]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseApp/O.linux-x86'
make[2]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseApp'
make -C ./makeBaseExt install
make[2]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseExt'
make -C O.linux-x86 -f ../Makefile TOP=../../.. T_A=linux-x86 install
make[3]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseExt/O.linux-x86'
make[3]: Nothing to be done for `install'.
make[3]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseExt/O.linux-x86'
make[2]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/makeBaseExt'
make -C ./libCom install
make[2]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/libCom'
make -C O.linux-x86 -f ../Makefile TOP=../../.. T_A=linux-x86 install
make[3]: Entering directory `/home/epics/EPICS/base-3.14.12.1/src/libCom/O.linux-x86'

/usr/bin/g++ -c  -D_POSIX_C_SOURCE=199506L -D_POSIX_THREADS -D_XOPEN_SOURCE=500           -D_X86_  -DUNIX  -D_BSD_SOURCE -Dlinux  -D_REENTRANT   -O3   -Wall      -m32     -g -fPIC -MMD -I. -I../O.Common -I. -I../../../src/libCom/osi/os/Linux -I../../../src/libCom/osi/os/posix -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/Linux -I../../../include        ../../../src/libCom/cxxTemplates/epicsOnce.cpp
In file included from ../../../src/libCom/cxxTemplates/epicsOnce.cpp:29:0:
../../../src/libCom/cxxTemplates/epicsSingleton.h:37:5: error: ‘size_t’ does not name a type
     size_t _refCount;
     ^
../../../src/libCom/cxxTemplates/epicsSingleton.h: In constructor ‘SingletonUntyped::SingletonUntyped()’:
../../../src/libCom/cxxTemplates/epicsSingleton.h:162:23: error: class ‘SingletonUntyped’ does not have any field named ‘_refCount’
     _pInstance ( 0 ), _refCount ( 0 )
                       ^
make[3]: *** [epicsOnce.o] Error 1
make[3]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/libCom/O.linux-x86'
make[2]: *** [install.linux-x86] Error 2
make[2]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src/libCom'
make[1]: *** [libCom.install] Error 2
make[1]: Leaving directory `/home/epics/EPICS/base-3.14.12.1/src'
make: *** [src.install] Error 2