When trying to bootstrap gcc trunk (r163445 or earlier to avoid PR45538) with
--enable-build-with-cxx, the bootstrap fails at...

g++  -g -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual
-Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H  -o cc1-dummy c-lang.o
c-family/stub-objc.o attribs.o c-errors.o c-decl.o c-typeck.o c-convert.o
c-aux-info.o c-objc-common.o c-parser.o tree-mudflap.o c-family/c-common.o
c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o
c-family/c-gimplify.o c-family/c-lex.o c-family/c-omp.o c-family/c-opts.o
c-family/c-pch.o c-family/c-ppoutput.o c-family/c-pragma.o
c-family/c-pretty-print.o c-family/c-semantics.o c-family/c-ada-spec.o i386-c.o
          dummy-checksum.o main.o tree-browser.o libbackend.a
../libcpp/libcpp.a ../libdecnumber/libdecnumber.a ../libcpp/libcpp.a  
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a  -lcloog  -lppl_c -lppl
-lgmpxx -L/usr/lib -L/usr/lib -L/usr/lib -lmpc -lmpfr -lgmp -rdynamic -ldl 
-L../zlib -lz -lelf
ld: crtbegin.o: No such file: No such file or directory
make[3]: *** [cc1-dummy] Error 1

when bootstrapping with...

../gcc/configure --with-gmp=/usr --with-mpfr=/usr --with-mpc=/usr
--prefix=/home/howarth/dist --enable-languages=c,c++ --enable-build-with-cxx

on x86_64 Fedora 10. This problem exists as far back as r161093. whereas before
that commit the failure was...

g++ -c  -g -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual
-Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -fno-common  -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc
-I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include
-I/usr/include -I/usr/include -I/usr/include  -I../../gcc/gcc/../libdecnumber
-I../../gcc/gcc/../libdecnumber/bid -I../libdecnumber  -DCLOOG_PPL_BACKEND 
-I/usr/include/libelf  insn-attrtab.c -o insn-attrtab.o
g++: error trying to exec 'cc1plus': execvp: No such file or directory
make[3]: *** [insn-attrtab.o] Error 1

           Summary: --enable-build-with-cxx failures with ld: crtbegin.o: No
                    such file: No such file or directory
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: howarth at nitro dot med dot uc dot edu
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


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