Experimental Physics and
Industrial Control System

I was wondering if someone might be able to help me track down the source of these linking errors when compiling an IOC with custom device support. I am using EPICS base 3.14.12.8 and Microsoft Visual Studio Community 2017 on Windows 10 Enterprise 64 bit.

link -nologo   -incremental:no -opt:ref -release  -MACHINE:X64              -out:ads.exe        ads_registerRecordDeviceDriver.obj adsMain.obj     ..\\..\\..\\lib\\windows-x64-static\\adsSupport.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\recIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\softDevIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\miscIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\rsrvIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\dbtoolsIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\asIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\dbIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\registryIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\dbStaticIoc.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\ca.lib  C:\\Users\\patrick.thomas\\Desktop\\epics\\base-3.14.12.8\\lib\\windows-x64-static\\Com.lib   ws2_32.lib advapi32.lib user32.lib kernel32.lib winmm.lib
ads_registerRecordDeviceDriver.obj : error LNK2019: unresolved external symbol pvar_dset_ai_DevSet referenced in function "void __cdecl `dynamic initializer for 'devsl''(void)" (??__Edevsl@@YAXXZ)
ads_registerRecordDeviceDriver.obj : error LNK2019: unresolved external symbol pvar_dset_ao_DevSet referenced in function "void __cdecl `dynamic initializer for 'devsl''(void)" (??__Edevsl@@YAXXZ)
...
ads_registerRecordDeviceDriver.obj : error LNK2019: unresolved external symbol pvar_func_devADSRegistrar referenced in function ads_registerRecordDeviceDriver
ads_registerRecordDeviceDriver.obj : error LNK2019: unresolved external symbol pvar_func_initTraceRegister referenced in function ads_registerRecordDeviceDriver
ads.exe : fatal error LNK1120: 12 unresolved externals

Makefile:

TOP=../..
include $(TOP)/configure/CONFIG

#=============================
# Build the IOC support library

LIBRARY_IOC += adsSupport

# Install devXxxSoft.dbd into <top>/dbd
DBD += adsSupport.dbd

# Compile and add the code to the support library
adsSupport_SRCS += devADS.cpp

# Link locally-provided code into the support library,
# rather than directly into the IOC application.

USR_CPPFLAGS += /std:c++latest

TcAdsDll_DIR += C:\TwinCAT\AdsApi\TcAdsDll\x64\lib
adsSupport_LIBS += TcAdsDll

adsSupport_LIBS += $(EPICS_BASE_IOC_LIBS)

#=============================
# Build the IOC application

PROD_IOC = ads
# ads.dbd will be created and installed
DBD += ads.dbd

# ads.dbd will be made up from these files:
ads_DBD += base.dbd

# Include dbd files from all support applications:
ads_DBD += adsSupport.dbd

# Add all the support libraries needed by this IOC
ads_LIBS += adsSupport

# ads_registerRecordDeviceDriver.cpp derives from ads.dbd
ads_SRCS += ads_registerRecordDeviceDriver.cpp

# Build the main IOC entry point on workstation OSs.
ads_SRCS_DEFAULT += adsMain.cpp

# Finally link to the EPICS Base libraries
ads_LIBS += $(EPICS_BASE_IOC_LIBS)

include $(TOP)/configure/RULES

-- 
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