| Topic: |
DEVELOP > c-Plus-Plus |
| User: |
"Will hunting" |
| Date: |
03 Jan 2007 08:12:26 PM |
| Object: |
what is "Undefined first referenced symbol in file" |
hi, when compiling using makefile on unix, I encounter such problem,
anyone has similar experience on this?
what could be the possible cause? thanks
make OBJS=out/release "EXTRAFLAGS=-O -DNDEBUG" world
/u04/app/forte/SUNWspro/bin/CC -c -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
src/IDODBInterface.cpp -o out/release/IDODBInterface.o
usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -Iusr/include
-I/u04/app/ilog/cplex71/include -I/u04/app/ilog/concert11/include
-I/u04/app/ilog/dblink50/include src/IDODataA.cpp -o
out/release/IDODataA.o
/u04/app/forte/SUNWspro/bin/CC -c -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
src/IDOEngineImplA.cpp -o out/release/IDOEngineImplA.o
/u04/app/forte/SUNWspro/bin/CC -c -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
src/IDOTextInterface.cpp -o out/release/IDOTextInterface.o
/u04/app/forte/SUNWspro/bin/CC -c -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
src/helpers.cpp -o out/release/helpers.o
/u04/app/forte/SUNWspro/bin/CC -c -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
src/ildutil.cpp -o out/release/ildutil.o
/u04/app/forte/SUNWspro/bin/CC -c -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
src/main.cpp -o out/release/main.o
/u04/app/forte/SUNWspro/bin/CC -O -DNDEBUG -pto -PIC -DIL_STD
-DILDORACLE -I/usr/include -I/u04/app/ilog/cplex71/include
-I/u04/app/ilog/concert11/include -I/u04/app/ilog/dblink50/include
out/release/IDODBInterface.o out/release/IDODataA.o out/release/ID
OEngineImplA.o out/release/IDOTextInterface.o out/release/helpers.o
out/release/ildutil.o out/release/main.o -L/export/home/liguan/lib
-lcommon -L/u04/app/ilog/cplex71/lib/sparc_5_5.0/static_pic_mt
-lilocplex -lcplex -L/u04/app/ilog/concert11/lib/sparc_5_
5.0/static_pic_mt -lconcert -L/u01/app/oracle/product/8.1.7/lib
-lclntsh -L/u04/app/ilog/dblink50/lib/sparc_5_5.0/static_pic_mt
-ldbora81 -ldbkernel -ldblnkst -lilog -lsocket -lnsl -lthread -ldl -o
out/engine
Undefined first referenced
symbol in file
std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char>
,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >FpcIntegration::solveFPC(double) out/release/IDODataA.o
FpcIntegration::FpcIntegration() out/release/IDODataA.o
ld: fatal: Symbol referencing errors. No output written to out/engine
*** Error code 1
make: Fatal error: Command failed for target `out/engine'
Current working directory /export/home/liguan/IDO
*** Error code 1
make: Fatal error: Command failed for target `release'
$
.
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|
| User: "Jim Langston" |
|
| Title: Re: what is "Undefined first referenced symbol in file" |
04 Jan 2007 03:30:10 AM |
|
|
"Will hunting" <lihangbo@gmail.com> wrote in message
news:1167876745.762897.139330@51g2000cwl.googlegroups.com...
hi, when compiling using makefile on unix, I encounter such problem,
anyone has similar experience on this?
what could be the possible cause? thanks
<SNIP>
Undefined first referenced
symbol in file
std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char>
,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char>
FpcIntegration::solveFPC(double) out/release/IDODataA.o
FpcIntegration::FpcIntegration() out/release/IDODataA.o
ld: fatal: Symbol referencing errors. No output written to out/engine
*** Error code 1
make: Fatal error: Command failed for target `out/engine'
Current working directory /export/home/liguan/IDO
*** Error code 1
make: Fatal error: Command failed for target `release'
Sounds like you forgot to:
#include <string>
#include <vector>
Or, the method:
solveFPC in the class FpcIntegration is not defined.
.
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| User: "Will hunting" |
|
| Title: Re: what is "Undefined first referenced symbol in file" |
04 Jan 2007 07:46:34 AM |
|
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thanks, I have found that in my makefile, I forgot to add -lfpc to
include the libfpc.so shared objects, so that when linking, error msg
symbol not defined appeared.
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