Hi makefile is as following: $ cat Make_Demo #SOLARIS MAKEFILE #C++ = /usr/local/bin/CC C++ = /usr/local/newgcc-4/bin/g++-4.0.0 #C++=CC #C++ = /usr/local/GNU/bin/g++ #C++FLAGS = -Wall -g -D__OLDSTYLE_CPP__ #C++FLAGS = -g -Wall #C++FLAGS = -O -Wall #C++FLAGS = -g -sb -DDEBUG C++FLAGS = -g -O -DNEW_ATTOBJECT -DSTUDIES -DNOPOLLING -DCOMNET -DDELETION_SPEC #C++FLAGS = -g -DSTUDIES PURIFYING = INCLUDE = . SOURCE = src/ BINDIR = OBJDIR = lib/ DEPEND = /usr/local/newgcc-4/bin/g++-4.0.0dep PGM_SRV = $(BINDIR)demo SRCS_SRV = demo1.C AttControl.C \ AttObject.C Graph.C AdjazenzMatrix.C List.C \ Token.C Tools.C Randomizer.C assert.C MappingData.C randomize.C \ initrandomize.C GMClass.C Matcher.C TimerSO.C TimerU.C MetaGraph.C \ ComNet.C NetworkNodes.C Multiindex.C Decision.C Decision1.C \ Decision2.C BRANCH_class.C LineDrawing.C Stroke.C OBJS_SRV = $(SRCS_SRV:.C=.o) ROBJS_SRV = $(OBJS_SRV:=$(OBJDIR)) RSRCS_SRV = $(SRCS_SRV:=$(SOURCE)) $(PGM_SRV): $(ROBJS_SRV) $(PURIFYING) $(C++) -o $(PGM_SRV) $(ROBJS_SRV) \ -lnsl \ -lX11 -lm $(OBJDIR).o: $(SOURCE).C $(C++) -c -I$(INCLUDE) $(C++FLAGS) $< -o $@ include dependencies_demo depend: $(C++) -E -MM -I$(INCLUDE) $(C++FLAGS) $(RSRCS_SRV) > ./dependencies_dem o the errors are as following when compiled: $ gmake -f Make_Demo /usr/local/newgcc-4/bin/g++-4.0.0 -c -I. -g -O -DNEW_ATTOBJECT -DSTUDIES -DNOPO LLING -DCOMNET -DDELETION_SPEC src/Graph.C -o lib/Graph.o In file included from /usr/local/newgcc-4/lib/gcc/i386-unknown-freebsd5.2.1/4.0. 0/../../../../include/c++/4.0.0/backward/stream.h:31, from ./assert.h:4, from ./AdjazenzMatrix.h:21, from ./Graph.h:20, from src/Graph.C:1: /usr/local/newgcc-4/lib/gcc/i386-unknown-freebsd5.2.1/4.0.0/../../../../include/ c++/4.0.0/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include subst ituting the <X> header for the <X.h> header for C++ includes, or <iostream> inst ead of the deprecated header <iostream.h>. To disable this warning use -Wno-depr ecated. src/Graph.C: In member function 'void Graph::set(int, int, double*, int)': src/Graph.C:200: error: no match for 'operator=' in 'at = AttributeClass::regist erLabel(int, double*, int)(label, values, n)' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'void Graph::set(int, int, double*, int, void*)' : src/Graph.C:215: error: no match for 'operator=' in 'at = AttributeClass::regist erLabel(int, double*, int)(label, values, n)' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'void Graph::resetAttributes(int, int, double*, int)': src/Graph.C:228: error: no match for 'operator=' in 'at = AttributeClass::regist erLabel(int, double*, int)(label, values, n)' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'void Graph::resetEdgeAttributes(int, int, doubl e*, int)': src/Graph.C:241: error: no match for 'operator=' in 'at = AttributeClass::regist erLabel(int, double*, int)(label, values, n)' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C:243: error: no match for 'operator=' in 'at2 = AdjazenzMatrix::getEd geAttributeId(int, int*, int*)((* ie), (& n1), (& n2))' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'void Graph::setEdge(int, int, int, int, double* , int)': src/Graph.C:262: error: no match for 'operator=' in 'at = AttributeClass::regist erLabel(int, double*, int)(label, values, n)' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'int Graph::getEdgesBetween(int, int, int, int&, double*&, int&)': src/Graph.C:560: error: no match for 'operator=' in 'at = AdjazenzMatrix::isNext EdgeAttId(int*)((& edge))' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'void Graph::generateDistortions(SortedList&, do uble)': src/Graph.C:767: error: no match for 'operator=' in 'i_at = AdjazenzMatrix::isNe xtEdgeAttId(int*)((& edg))' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C:786: error: no match for 'operator=' in 'at = AdjazenzMatrix::isNext EdgeAttId(int*)((& edg))' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C: In member function 'List* Graph::getMinimalCycles(int)': src/Graph.C:1004: error: no match for 'operator=' in 'at = AdjazenzMatrix::isNex tEdgeAttId(int*)((& edg))' /AttObject.h:25: note: candidates are: AttId AttId::operator=(AttId&) /AttObject.h:27: note: AttId AttId::operator=(int) src/Graph.C:1023: warning: converting to 'int' from 'double' gmake: *** [lib/Graph.o] error 1 the target and host machine is i386-freebsd-5.2.1 why? are those errors related to the version of gcc? please help best regard wangxiuli wangxiuli@xxxxxxxxxxx 2005-07-07