Experimental Physics and
Industrial Control System

[email protected] (Ben-chin K. Cha) · Thu, 5 Dec 1996 14:39:25 -0600

> 
> Has anyone used the 'pvwave' EPICS extension, i.e. CaWave.so
> with PV-WAVE version 6.01?
> 
> I have two problems. 
> When I build 'CaWave.so', I get:
> 
> **************************************************
> Undefined			first referenced
>  symbol  			    in file
> _strerror                           (command line)
> ld: warning: Symbol referencing errors
> ****************************************************
> 

Your problem is due to the library version on sun4.

When I built the ezcaIDL with the new default setting for EPICS R3.13.0 
on sun4, I encountered the same problem.  I have to modified the
Makefile.Unix in order to build the  '.so' correctly.  The _strerror
is defined in the ansi library. 

You have to make the following changes for sun4 
  1) to append the '-lansi' in the  USR_LDLIBS,  and 
  2) insert the library path ' -L/usr/lang/SC1.0 -L/usr/lang/SC2.0.1patch ' 
     in the ld line for both CaWave.so and CaIDL.so build rule.

For your reference, below is the Makefile.Unix extracted from my 
private area, it should work fine for sun4 at least I tried with the
EPICS 3.13.0beta4 it worked fine.

Ben-chin

============
EPICS = ../../../..
include Target.include
include $(EPICS)/config/CONFIG_EXTENSIONS

DEPLIBS = $(INSTALL_LIB)/libLca.a \
           $(EPICS_EXTENSIONS_LIB)/libLca.a \
           $(EPICS_BASE_LIB)/libca.a \
           $(EPICS_BASE_LIB)/libDb.a \
           $(EPICS_BASE_LIB)/libCom.a 

USR_INCLUDES = -I$(INSTALL_INCLUDE) -I$(EPICS_EXTENSIONS_INCLUDE)
USR_LDFLAGS = -L$(INSTALL_LIB)  -L$(EPICS_EXTENSIONS_LIB)
USR_LDLIBS = -lLca -lca -lCom -lDb -lCom -lansi

ifeq ($(HOST_ARCH),solaris)
USR_INCLUDES = -Kpic -I$(INSTALL_INCLUDE) -I$(EPICS_EXTENSIONS_INCLUDE)
USR_LDFLAGS = -G -L$(INSTALL_LIB)  -L$(EPICS_EXTENSIONS_LIB)
USR_LDLIBS = -lLca -lca -lCom -lDb -lCom
endif

UNIX_LDLIBS =
UNIX_OPT=NO

SRCS.c = ../CaWave.c
OBJS = CaWave.o 
OBJS1 = CaIDL.o 
PROD = CaWave.so CaIDL.so 
SCRIPTS = CaWave.pro CaWidgets.pro idl_startup.pro setupidl \
	catch1d.pro catch1d.init go1d \
	catch1d_v2.pro catch1d_v2.init

DOCS = CaWave.doc catch1d_help.txt

include $(EPICS)/config/RULES.Unix

CaWave.so : $(OBJS) $(DEPLIBS)
	ld -L/usr/lang/SC1.0 -L/usr/lang/SC2.0.1patch $(LDFLAGS) -o $@ $(OBJS1) $(LDLIBS)

CaIDL.so : $(OBJS1) $(DEPLIBS)
	ld -L/usr/lang/SC1.0 -L/usr/lang/SC2.0.1patch $(LDFLAGS) -o $@ $(OBJS1) $(LDLIBS)

CaWave.o : $(SRCS.c)
	$(COMPILE.c) -DPVWAVE $(SRCS.c)

CaIDL.o : $(SRCS.c)
	$(COMPILE.c) -DIDL -o $@ $(SRCS.c)

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System