When libgmp, libgmpxx, mpfr, ppl and cloog are built as static (.a) libraries -lm is needed for PPLLIBS , but it isnt added therefore build fails unless -lm is added
i586-sylvia-linux-ar rc libbackend.a insn-attrtab.o insn-automata.o insn-emit.o insn-extract.o insn-modes.o insn-opinit.o insn-output.o insn-peep.o insn-preds.o insn-recog.o ggc-page.o alias.o alloc-pool.o auto-inc-dec.o bb-reorder.o bitmap.o bt-load.o builtins.o caller-save.o calls.o cfg.o cfganal.o cfgbuild.o cfgcleanup.o cfgexpand.o cfghooks.o cfglayout.o cfgloop.o cfgloopanal.o cfgloopmanip.o cfgrtl.o combine.o combine-stack-adj.o convert.o coverage.o cse.o cselib.o dbxout.o dbgcnt.o dce.o ddg.o debug.o df-byte-scan.o df-core.o df-problems.o df-scan.o dfp.o diagnostic.o dojump.o dominance.o domwalk.o double-int.o dse.o dwarf2asm.o dwarf2out.o ebitmap.o emit-rtl.o et-forest.o except.o explow.o expmed.o expr.o final.o fixed-value.o fold-const.o function.o fwprop.o gcse.o genrtl.o ggc-common.o gimple.o gimple-iterator.o gimple-low.o gimple-pretty-print.o gimplify.o graph.o graphds.o graphite.o gtype-desc.o haifa-sched.o hooks.o ifcvt.o init-regs.o integrate.o intl.o ira.o ira-build.o ira-costs.o ira-conflicts.o ira-color.o ira-emit.o ira-lives.o jump.o lambda-code.o lambda-mat.o lambda-trans.o langhooks.o lcm.o lists.o loop-doloop.o loop-init.o loop-invariant.o loop-iv.o loop-unroll.o loop-unswitch.o lower-subreg.o mcf.o mode-switching.o modulo-sched.o omega.o omp-low.o optabs.o options.o opts-common.o opts.o params.o passes.o pointer-set.o postreload-gcse.o postreload.o predict.o pretty-print.o print-rtl.o print-tree.o profile.o real.o recog.o reg-stack.o reginfo.o regmove.o regrename.o regstat.o reload.o reload1.o reorg.o resource.o rtl-error.o rtl-factoring.o rtl.o rtlanal.o rtlhooks.o sbitmap.o sched-deps.o sched-ebb.o sched-rgn.o sched-vis.o sdbout.o see.o sel-sched-ir.o sel-sched-dump.o sel-sched.o simplify-rtx.o sparseset.o sreal.o stack-ptr-mod.o statistics.o stmt.o stor-layout.o stringpool.o targhooks.o timevar.o toplev.o tracer.o tree-affine.o tree-call-cdce.o tree-cfg.o tree-cfgcleanup.o tree-chrec.o tree-complex.o tree-data-ref.o tree-dfa.o tree-dump.o tree-eh.o tree-if-conv.o tree-into-ssa.o tree-iterator.o tree-loop-distribution.o tree-loop-linear.o tree-nested.o tree-nrv.o tree-object-size.o tree-optimize.o tree-outof-ssa.o tree-parloops.o tree-phinodes.o tree-predcom.o tree-pretty-print.o tree-profile.o tree-scalar-evolution.o tree-sra.o tree-switch-conversion.o tree-ssa-address.o tree-ssa-alias.o tree-ssa-ccp.o tree-ssa-coalesce.o tree-ssa-copy.o tree-ssa-copyrename.o tree-ssa-dce.o tree-ssa-dom.o tree-ssa-dse.o tree-ssa-forwprop.o tree-ssa-ifcombine.o tree-ssa-live.o tree-ssa-loop-ch.o tree-ssa-loop-im.o tree-ssa-loop-ivcanon.o tree-ssa-loop-ivopts.o tree-ssa-loop-manip.o tree-ssa-loop-niter.o tree-ssa-loop-prefetch.o tree-ssa-loop-unswitch.o tree-ssa-loop.o tree-ssa-math-opts.o tree-ssa-operands.o tree-ssa-phiopt.o tree-ssa-phiprop.o tree-ssa-pre.o tree-ssa-propagate.o tree-ssa-reassoc.o tree-ssa-sccvn.o tree-ssa-sink.o tree-ssa-structalias.o tree-ssa-ter.o tree-ssa-threadedge.o tree-ssa-threadupdate.o tree-ssa-uncprop.o tree-ssa.o tree-ssanames.o tree-stdarg.o tree-tailcall.o tree-vect-analyze.o tree-vect-generic.o tree-vect-patterns.o tree-vect-transform.o tree-vectorizer.o tree-vrp.o tree.o value-prof.o var-tracking.o varasm.o varray.o vec.o version.o vmsdbgout.o web.o xcoffout.o i386.o host-linux.o cgraph.o cgraphbuild.o cgraphunit.o cppdefault.o incpath.o ipa-cp.o ipa-inline.o ipa-prop.o ipa-pure-const.o ipa-reference.o ipa-struct-reorg.o ipa-type-escape.o ipa-utils.o ipa.o matrix-reorg.o prefix.o tree-inline.o tree-nomudflap.o varpool.o i586-sylvia-linux-ranlib libbackend.a /home/sylvia/tmp/gcc-4.4.1-20090604/build/./prev-gcc/xgcc -B/home/sylvia/tmp/gcc-4.4.1-20090604/build/./prev-gcc/ -B/usr/local/gcc-4.4/i586-sylvia-linux/bin/ -pipe -fomit-frame-pointer -g0 -mmmx -msse2 -mfpmath=sse -march=pentium4 -ftree-vectorize -floop-interchange -floop-block -floop-strip-mine -ftree-loop-distribution -O3 -fomit-frame-pointer -fprofile-generate -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition -Wc++-compat -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H -o cc1-dummy c-lang.o stub-objc.o attribs.o c-errors.o c-lex.o c-pragma.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o c-semantics.o c-ppoutput.o c-cppbuiltin.o c-objc-common.o c-dump.o c-pch.o c-parser.o i386-c.o c-gimplify.o tree-mudflap.o c-pretty-print.o c-omp.o dummy-checksum.o \ main.o libbackend.a ../libcpp/libcpp.a ../libdecnumber/libdecnumber.a ../libcpp/libcpp.a ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -L/var/tmp/lib -lcloog -L/var/tmp/lib -lppl_c -lppl -lgmpxx /usr/local/gcc-4.4/lib/libstdc++.a -L/var/tmp/lib -L/var/tmp/lib -lmpfr -lgmp /var/tmp/lib/libppl.a(MIP_Problem.o): In function `Parma_Polyhedra_Library::MIP_Problem::steepest_edge_float_entering_index() const': MIP_Problem.cc:(.text+0xdba): undefined reference to `sqrt' collect2: ld returned 1 exit status make[3]: *** [cc1-dummy] Error 1 -- Summary: PPLLIBS flags do not include -lm Product: gcc Version: 4.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: fierevere at ya dot ru GCC build triplet: native GCC host triplet: i?86-linux-gnu GCC target triplet: native http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40337