Experimental Physics and
Industrial Control System

Hi,

 

The EPICS Base is broken for Cygwin under gcc 9.0.* The error message seems pointing to “TCP_NODELAY” not declared. I tried for several Base 3.15.*, 3.14.*, and 7.*, and all got the same error messages (see below). If using gcc 7.4.*, all versions can compile without any issue.  Does anybody experience the same issue?

 

…

g++  -D_POSIX_THREADS -D_POSIX_TIMERS           -DUNIX  -DCYGWIN32     -O3 -g   -Wall      -m64   -DEPICS_BUILD_DLL -DEPICS_CALL_DLL   -I. -I../O.Common -I. -I. -I.. -I../../../../src/ca/client/test -I../../../../include/compiler/gcc -I../../../../include/os/cygwin32 -I../../../../include         -o tcpiiu.obj -c ../tcpiiu.cpp

In file included from ../localHostName.h:32,

                 from ../tcpiiu.cpp:32:

../../../../include/epicsSingleton.h:164:15: warning: ‘void* SingletonUntyped::pInstance() const’ redeclared without dllimport attribute after being referenced with dll linkage

  164 | inline void * SingletonUntyped :: pInstance () const

      |               ^~~~~~~~~~~~~~~~

../tcpiiu.cpp: In constructor ‘tcpiiu::tcpiiu(cac&, epicsMutex&, epicsMutex&, cacContextNotify&, double, epicsTimerQueue&, const osiSockAddr&, comBufMemoryManager&, unsigned int, ipAddrToAsciiEngine&, const priLev&, SearchDestTCP*)’:

../tcpiiu.cpp:728:56: error: ‘TCP_NODELAY’ was not declared in this scope

  728 |     int status = setsockopt ( this->sock, IPPROTO_TCP, TCP_NODELAY,

      |                                                        ^~~~~~~~~~~

make[3]: *** [../../../../configure/RULES_BUILD:240: tcpiiu.obj] Error 1

make[3]: Leaving directory '/cygdrive/c/epics/base-3.15.7/src/ca/client/O.CYGWIN-X86_64'

make[2]: *** [../../../configure/RULES_ARCHS:58: install.CYGWIN-X86_64] Error 2

make[2]: Leaving directory '/cygdrive/c/epics/base-3.15.7/src/ca/client'

make[1]: *** [../configure/RULES_DIRS:84: ca/client.install] Error 2

make[1]: Leaving directory '/cygdrive/c/epics/base-3.15.7/src'

make: *** [configure/RULES_DIRS:84: src.install] Error 2

 

Thanks,

Paul

 

Paul Chu

Head of Accelerator Division

Nanjing Proton Source

Nanjing University, Nanjing, China