I have the following problem building 4.1.1 on Cygwin. This error occurred in the make bootstrap phase: ar rc libbackend.a tree-chrec.o tree-scalar-evolution.o tree-data-ref.o tree-cfg .o tree-dfa.o tree-eh.o tree-ssa.o tree-optimize.o tree-gimple.o gimplify.o tree -pretty-print.o tree-into-ssa.o tree-outof-ssa.o tree-ssa-ccp.o tree-vn.o tree-s sa-uncprop.o tree-ssa-dce.o tree-ssa-copy.o tree-nrv.o tree-ssa-copyrename.o tr ee-ssa-pre.o tree-ssa-live.o tree-ssa-operands.o tree-ssa-alias.o tree-ssa-phiop t.o tree-ssa-forwprop.o tree-nested.o tree-ssa-dse.o tree-ssa-dom.o domwalk.o tr ee-tailcall.o gimple-low.o tree-iterator.o tree-phinodes.o tree-ssanames.o tree- sra.o tree-complex.o tree-vect-generic.o tree-ssa-loop.o tree-ssa-loop-niter.o t ree-ssa-loop-manip.o tree-ssa-threadupdate.o tree-vectorizer.o tree-vect-analyze .o tree-vect-transform.o tree-ssa-loop-ivcanon.o tree-ssa-propagate.o tree-ssa-a ddress.o tree-ssa-math-opts.o tree-ssa-loop-ivopts.o tree-if-conv.o tree-ssa-loo p-unswitch.o alias.o bb-reorder.o bitmap.o builtins.o caller-save.o calls.o cfg. o cfganal.o cfgbuild.o cfgcleanup.o cfglayout.o cfgloop.o cfgloopanal.o cfgloopm anip.o loop-init.o loop-unswitch.o loop-unroll.o cfgrtl.o combine.o conflict.o c onvert.o coverage.o cse.o cselib.o dbxout.o ddg.o tree-ssa-loop-ch.o loop-invari ant.o tree-ssa-loop-im.o debug.o df.o diagnostic.o dojump.o dominance.o loop-dol oop.o dwarf2asm.o dwarf2out.o emit-rtl.o except.o explow.o loop-iv.o expmed.o ex pr.o final.o flow.o fold-const.o function.o gcse.o genrtl.o ggc-common.o global. o graph.o gtype-desc.o haifa-sched.o hooks.o ifcvt.o insn-attrtab.o insn-emit.o insn-modes.o insn-extract.o insn-opinit.o insn-output.o insn-peep.o insn-recog.o integrate.o intl.o jump.o langhooks.o lcm.o lists.o local-alloc.o loop.o mode- switching.o modulo-sched.o optabs.o options.o opts.o params.o postreload.o postr eload-gcse.o predict.o insn-preds.o pointer-set.o print-rtl.o print-tree.o profi le.o value-prof.o var-tracking.o real.o recog.o reg-stack.o regclass.o regmove.o regrename.o reload.o reload1.o reorg.o resource.o rtl.o rtlanal.o rtl-error.o s bitmap.o sched-deps.o sched-ebb.o sched-rgn.o sched-vis.o sdbout.o simplify-rtx. o sreal.o stmt.o stor-layout.o stringpool.o targhooks.o timevar.o toplev.o trace r.o tree.o tree-dump.o varasm.o varray.o vec.o version.o vmsdbgout.o xcoffout.o alloc-pool.o et-forest.o cfghooks.o bt-load.o pretty-print.o ggc-page.o web.o pa sses.o tree-profile.o rtlhooks.o cfgexpand.o lambda-mat.o lambda-trans.olambda-c ode.o tree-loop-linear.o tree-ssa-sink.o tree-vrp.o tree-stdarg.o tree-cfgcleanu p.o tree-ssa-reassoc.o tree-ssa-structalias.o tree-object-size.o i386.o winnt.o winnt-stubs.o host-cygwin.o tree-inline.o cgraph.o cgraphunit.o tree-nomudflap.o ipa.o ipa-inline.o ipa-utils.o ipa-reference.o ipa-pure-const.o ipa-type-escape .o ipa-prop.o ipa-cp.o ar: ipa-cp.o: No such file or directory make[2]: *** [libbackend.a] Error 1 make[2]: Leaving directory `/c/development/gcc-4.1.1/compile/objdir/gcc' make[1]: *** [stage1_build] Error 2 make[1]: Leaving directory `/c/development/gcc-4.1.1/compile/objdir/gcc' make: *** [bootstrap] Error 2 I ran the following commands: 1. ../gcc/configure -enable-threads=posix --prefix=/c/development/gcc-4.1.1/compile/build --enable-shared --enable-languages=c++,java --with-as=/usr/bin/as --with-ld=/usr/bin/ld 2. make bootstrap Can anyone provide some help with this issue? Thanks. Scott