C++ linking library to a library Post: 303006565

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Top Forums Programming C++ linking library to a library Post 303006565 by arunkumar_mca on Friday 3rd of November 2017 12:38:05 PM

11-03-2017

Registered User

C++ linking library to a library

Hi All,

My application main engine will use a shared library where we do many operation. We are trying to implement the linear algebra operation on the shared library for that I need to link my shared library to the lapack library in /usr/lib.

Below is my make file. Can you please let me know where can I link the lblas lib to this make file

Code:

IP_INCLUDE=../iplib
MKLIB_INCLUDE=../lib



LIBNAME=shared
YESBANVER=$(YESBAN_PRODUCT_MAJ)$(YESBAN_PRODUCT_MIN)
YESBANBLD=$(YESBAN_PRODUCT_BUILD_VER)
ARMAD=/home/armadillo3.4.4/armadillo-3.4.4/include
LLPAT=/usr/lib64

INCLUDEDIR=-I$(YESBAN_RWPATH_64)  -I$(YESBAN_RWINCLUDECTPATH_64) -I$(YESBAN_RWINCLUDEPATH_64) \
        -I$(YESBAN_SYBINCLUDE_64) -I$(IMS_INCLUDE) -I$(PFLIB_INCLUDE) -I. -I$(ARMAD) -I$(LLPAT)


#---------------------------------------------------------------------
# ---- Constants definitions
#               OPT_CPP                 - C++ Compiler Options
#               OPT_C                   - C Compiler Options
# ---------------------------------------------------------------------


#CPPOPTS=-D_OS_LINUX -DHPaCC -DSYB_LP64 -D_THREAD_SAFE -D__HPACC_THREAD_SAFE_RB_TREE

CPPOPTS=

# C++ Compiler

OPT_CPP=$(YESBAN_CCOPT) $(_OPT_CPP) $(INCLUDEDIR) $(YESBAN_RW_OPTS) -D_FILE_OFFSET_BITS=64 -DARMA_DONT_USE_WRAPPER


# C Compiler
# ----------
OPT_C=$(YESBAN_COPT) $(_OPT_C) $(INCLUDEDIR) -D_FILE_OFFSET_BITS=64 -DARMA_DONT_USE_WRAPPER


.SUFFIXES: .cpp .o .c

all:clean
        make -f GNUmakefile_64 $(YESBAN_BIN_64)/lib$(LIBNAME).a

rel:
        make -f GNUmakefile_64 $(YESBAN_BIN_64)/lib$(LIBNAME).a

dbg:
        make -f GNUmakefile_64 $(YESBAN_BINDBG_64)/lib$(LIBNAME).a

$(YESBAN_BIN_64)/lib$(LIBNAME).a: $(OBJECTS)
        $(YESBAN_AR) -r $@ $(OBJECTS)

$(YESBAN_BINDBG_64)/lib$(LIBNAME).a: $(DBGOBJECTS)
        $(YESBAN_AR) -r $@ $(DBGOBJECTS)

# --> C++ compilation
$(YESBAN_BIN_64)/%.o : %.cpp
        $(YESBAN_CC_64)  $(OPT_CPP) $< -o $@
# --> C compilation.
$(YESBAN_BIN_64)/%.o : %.c
        $(YESBAN_CC_64)  $(OPT_CPP) $< -o $@
# --> C++ compilation
$(YESBAN_BINDBG_64)/%.o : %.cpp
        $(YESBAN_CC_64) $(YESBAN_CCDEBUG)  $(OPT_CPP) $< -o $@


# --> C compilation.
$(YESBAN_BINDBG_64)/%.o : %.c
        $(YESBAN_CC_64) $(YESBAN_CDEBUG)  $(OPT_CPP) $< -o $@

Below is the error I am getting when I try to link by in make file above as below

Code:

OPT_CPP=$(YESBAN_CCOPT) $(_OPT_CPP) $(INCLUDEDIR) $(YESBAN_RW_OPTS) -D_FILE_OFFSET_BITS=64 -DARMA_DONT_USE_WRAPPER -llapack

Quote:

g++: -llapack: linker input file unused because linking not done

Last edited by arunkumar_mca; 11-03-2017 at 01:47 PM..

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LEARN ABOUT SUNOS

lib450

libplot(3LIB)							Interface Libraries						     libplot(3LIB)

NAME

       libplot, lib300, lib300s, lib4014, lib450, libvt0 - graphics interface libraries

SYNOPSIS

       cc [ flag... ] file... -lplot [ library... ]
       #include <plot.h>

DESCRIPTION

       Functions in this library generate graphics output.

INTERFACES

       The  shared  object  libplot.so.1  provides  the  public interfaces defined below. See intro(3) for additional information on shared object
       interfaces.

       arc			     box
       circle			     closepl
       closevt			     cont
       erase			     label
       line			     linemod
       move			     openpl
       openvt			     point
       space

FILES

       /usr/lib/libplot.so.1		       shared object

       /usr/lib/64/libplot.so.1 	       64-bit shared object

       /usr/lib/lib300.so.1		       shared object

       /usr/lib/64/lib300.so.1		       64-bit shared object

       /usr/lib/lib300s.so.1		       shared object

       /usr/lib/64/lib300s.so.1 	       64-bit shared object

       /usr/lib/lib4014.so.1		       shared object

       /usr/lib/64/lib4014.so.1 	       64-bit shared object

       /usr/lib/lib450.so.1		       shared object

       /usr/lib/64/lib450.so.1		       64-bit shared object

       /usr/lib/libvt0.so.1		       shared object

       /usr/lib/64/libvt0.so.1		       64-bit shared object

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsl (32-bit)		   |
       +-----------------------------+-----------------------------+
       |			     |SUNWcslx (64-bit) 	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pvs(1), intro(3), attributes(5)

SunOS 5.10							    13 Jun 2003 						     libplot(3LIB)