sh4 linux build fails for gcc 4.2.0 using cygwin

["Sam Gardner" <S dot Gardner at ncapsa dot com>]

Hi,

This is my first attempt at building a gcc cross compiler, so please bear with me. I'm trying to build a gcc cross compiler for a sh4 linux target using cygwin. I run the configure script with the following options:

../gcc-4.2.0/configure -target sh4-linux -enable-languages=c,c++

Running this script gives the following output:

loading cache ./config.cache
checking host system type... i686-pc-cygwin
checking target system type... sh4-unknown-linux-gnu
checking build system type... i686-pc-cygwin
checking for a BSD compatible install... (cached) /usr/bin/install -c
checking whether ln works... (cached) yes
checking whether ln -s works... (cached) yes
checking for gcc... (cached) gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gnatbind... (cached) gnatbind
checking whether compiler driver understands Ada... (cached) yes
checking how to compare bootstrapped objects... (cached) cmp --ignore-initial=16 $$f1 $$f2
checking for correct version of gmp.h... no
checking for bison... (cached) bison -y
checking for bison... (cached) bison
checking for gm4... (cached) m4
checking for flex... (cached) flex
checking for flex... (cached) flex
checking for makeinfo... (cached) makeinfo
checking for expect... (cached) expect
checking for runtest... (cached) runtest
checking for i686-pc-cygwin-ar... (cached) ar
checking for i686-pc-cygwin-as... (cached) as
checking for i686-pc-cygwin-dlltool... (cached) dlltool
checking for i686-pc-cygwin-ld... (cached) /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld.exe
checking for i686-pc-cygwin-lipo... no
checking for lipo... no
checking for i686-pc-cygwin-nm... (cached) nm
checking for i686-pc-cygwin-ranlib... (cached) ranlib
checking for i686-pc-cygwin-strip... (cached) strip
checking for i686-pc-cygwin-windres... (cached) windres
checking for i686-pc-cygwin-objcopy... (cached) objcopy
checking for i686-pc-cygwin-objdump... (cached) objdump
checking for sh4-linux-gfortran... no
checking for dlltool... no
checking for lipo... no
checking for sh4-linux-lipo... no
checking for windres... no
checking where to find the target ar... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target as... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target cc... just compiled
checking where to find the target c++... just compiled
checking where to find the target c++ for libstdc++... just compiled
checking where to find the target dlltool... pre-installed
checking where to find the target gcc... just compiled
checking where to find the target gcj... pre-installed
checking where to find the target gfortran... pre-installed
checking where to find the target ld... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target lipo... pre-installed
checking where to find the target nm... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target objdump... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target ranlib... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target strip... pre-installed in /usr/local/sh4-linux/bin
checking where to find the target windres... pre-installed
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether -fkeep-inline-functions is supported... yes
updating cache ./config.cache
creating ./config.status
creating Makefile

This report suggests gmp is not correct. The instructions imply that this is necessary. The cygwin setup tool says that it has been installed, but when I search for it I cannot find it. Is this a problem?

When I run the Makefile I get the following error:

TARGET_CPU_DEFAULT="" \
      HEADERS="auto-host.h ansidecl.h" DEFINES="USED_FOR_TARGET " \
      /bin/sh ../../gcc-4.2.0/gcc/mkconfig.sh tconfig.h
/cygdrive/c/work/sh4-linux-gcc/./gcc/xgcc -B/cygdrive/c/work/sh4-linux-gcc/./gcc/ -B/usr/local/sh4-linux/bin/ -B/usr/local/sh4-linux/lib/ -isystem /usr/local/sh4-linux/include -isystem /usr/local/sh4-linux/sys-include -O2 -O2 -g -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -I. -I. -I../../gcc-4.2.0/gcc -I../../gcc-4.2.0/gcc/. -I../../gcc-4.2.0/gcc/../include -I../../gcc-4.2.0/gcc/../libcpp/include  -I../../gcc-4.2.0/gcc/../libdecnumber -I../libdecnumber  -g0 -finhibit-size-directive -fno-inline-functions -fno-exceptions -fno-zero-initialized-in-bss -fno-toplevel-reorder -Dinhibit_libc  \
        -c ../../gcc-4.2.0/gcc/crtstuff.c -DCRT_BEGIN \
        -o crtbegin.o
/cygdrive/c/work/sh4-linux-gcc/.gcc/as: unrecognized option '-little'
make[2]: *** [crtbegin.o] Error 1
make[2]: Leaving directory `/cygdrive/c/work/sh4-linux-gcc/gcc'
make[1]: *** [all-gcc] Error 2
make[1]: Leaving directory `/cygdrive/c/work/sh4-linux-gcc'
make: *** [all] Error 2

I am still unsure about the glibc libraries. Are these part of the gcc source, and do they get built with the gcc or do I need to build them separately? Please can you advise me on the best way forward.

Kind Regards,

Sam.

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