Binutils 2.31.1 build error - config

checking build system type... x86_64-apple-darwin18.0.0
checking host system type... x86_64-apple-darwin18.0.0
checking target system type... i386-pc-elf
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln works... yes
checking whether ln -s works... yes
checking for a sed that does not truncate output... /usr/bin/sed
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking whether g++ accepts -static-libstdc++ -static-libgcc... no
checking for gnatbind... no
checking for gnatmake... no
checking whether compiler driver understands Ada... no
checking how to compare bootstrapped objects... cmp --ignore-initial=16 $$f1 $$f2
checking for objdir... .libs
checking for isl 0.15 or later... no
required isl version is 0.15 or later
rm: conftest.dSYM: is a directory
checking for default BUILD_CONFIG...
checking for --enable-vtable-verify... no
checking for bison... bison -y
checking for bison... bison
checking for gm4... gm4
checking for flex... flex
checking for flex... flex
checking for makeinfo... makeinfo
checking for expect... expect
checking for runtest... no
checking for ar... ar
checking for as... as
checking for dlltool... no
checking for ld... ld
checking for lipo... lipo
checking for nm... nm
checking for ranlib... ranlib
checking for strip... strip
checking for windres... no
checking for windmc... no
checking for objcopy... objcopy
checking for objdump... objdump
checking for readelf... readelf
checking for i386-elf-cc... no
checking for i386-elf-gcc... no
checking for i386-elf-c++... no
checking for i386-elf-g++... no
checking for i386-elf-cxx... no
checking for i386-elf-gxx... no
checking for i386-elf-gcc... no
checking for i386-elf-gfortran... no
checking for i386-elf-gccgo... no
checking for i386-elf-ar... no
checking for i386-elf-as... no
checking for i386-elf-dlltool... no
checking for i386-elf-ld... no
checking for i386-elf-lipo... no
checking for i386-elf-nm... no
checking for i386-elf-objcopy... no
checking for i386-elf-objdump... no
checking for i386-elf-ranlib... no
checking for i386-elf-readelf... no
checking for i386-elf-strip... no
checking for i386-elf-windres... no
checking for i386-elf-windmc... no
checking where to find the target ar... just compiled
checking where to find the target as... just compiled
checking where to find the target cc... pre-installed
checking where to find the target c++... pre-installed
checking where to find the target c++ for libstdc++... pre-installed
checking where to find the target dlltool... just compiled
checking where to find the target gcc... pre-installed
checking where to find the target gfortran... pre-installed
checking where to find the target gccgo... pre-installed
checking where to find the target ld... just compiled
checking where to find the target lipo... pre-installed
checking where to find the target nm... just compiled
checking where to find the target objcopy... just compiled
checking where to find the target objdump... just compiled
checking where to find the target ranlib... just compiled
checking where to find the target readelf... just compiled
checking where to find the target strip... just compiled
checking where to find the target windres... just compiled
checking where to find the target windmc... just compiled
checking whether to enable maintainer-specific portions of Makefiles... no
configure: creating ./config.status
config.status: creating Makefile