Re: Problems when cross compiling GCC on mingw

> Hello,
>
> somewhere during version 4.6 of GCC I started to get a weird error when
> I compile GCC with newlib for target arm-none-eabi, and it never went
> away (now on 4.7).
> I'll first start with the output of the terminal at the error:
>
> /home/gnuarm-linaro/build/gcc-linaro-4.7-2012.05/./gcc/xgcc
> -B/home/gnuarm-linar
> o/build/gcc-linaro-4.7-2012.05/./gcc/ -nostdinc
> -B/home/gnuarm-linaro/build/gcc-
> linaro-4.7-2012.05/arm-none-eabi/newlib/ -isystem
> /home/gnuarm-linaro/build/gcc-
> linaro-4.7-2012.05/arm-none-eabi/newlib/targ-include -isystem
> /home/gnuarm-linar
> o/src/gcc-linaro-4.7-2012.05/newlib/libc/include
> -B/home/gnuarm-linaro/build/gcc
> -linaro-4.7-2012.05/arm-none-eabi/libgloss/arm
> -L/home/gnuarm-linaro/build/gcc-l
> inaro-4.7-2012.05/arm-none-eabi/libgloss/libnosys
> -L/home/gnuarm-linaro/src/gcc-
> linaro-4.7-2012.05/libgloss/arm
> -B/home/gnuarm-linaro/install/arm-none-eabi/bin/
>    -B/home/gnuarm-linaro/install/arm-none-eabi/lib/ -isystem
> /home/gnuarm-linaro/i
> nstall/arm-none-eabi/include -isystem
> /home/gnuarm-linaro/install/arm-none-eabi/
> sys-include    -g -O2 -mthumb -O2 -g -O2 -DIN_GCC
> -DCROSS_DIRECTORY_STRUCTURE  -
> W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
> -Wmissing-prototypes -Wo
> ld-style-definition  -isystem ./include  -I. -I. -I../../.././gcc
> -I../../../../
> ../src/gcc-linaro-4.7-2012.05/libgcc
> -I../../../../../src/gcc-linaro-4.7-2012.05
> /libgcc/. -I../../../../../src/gcc-linaro-4.7-2012.05/libgcc/../gcc
> -I../../../.
> ./../src/gcc-linaro-4.7-2012.05/libgcc/../include   -g0
> -finhibit-size-directive
>    -fno-inline -fno-exceptions -fno-zero-initialized-in-bss
> -fno-toplevel-reorder
> -fno-tree-vectorize -fno-stack-protector  -I. -I. -I../../.././gcc
> -I../../../..
> /../src/gcc-linaro-4.7-2012.05/libgcc
> -I../../../../../src/gcc-linaro-4.7-2012.0
> 5/libgcc/. -I../../../../../src/gcc-linaro-4.7-2012.05/libgcc/../gcc
> -I../../../
> ../../src/gcc-linaro-4.7-2012.05/libgcc/../include  -o crtbegin.o -MT
> crtbegin.o
>    -MD -MP -MF crtbegin.dep  -c
> ../../../../../src/gcc-linaro-4.7-2012.05/libgcc/c
> rtstuff.c -DCRT_BEGIN
> In file included from
> D:/MinGW/msys/1.0/home/gnuarm-linaro/src/gcc-linaro-4.7-20
> 12.05/newlib/libc/include/stdio.h:46:0,
>                    from
> ../../../../../src/gcc-linaro-4.7-2012.05/libgcc/../gcc/ts
> ystem.h:88,
>                    from
> ../../../../../src/gcc-linaro-4.7-2012.05/libgcc/crtstuff.
> c:62:
> D:/MinGW/msys/1.0/home/gnuarm-linaro/src/gcc-linaro-4.7-2012.05/newlib/libc/incl
> ude/sys/types.h:127:16: error: expected identifier or '(' before 'char'
> make[4]: *** [crtbegin.o] Error 1
> make[4]: Leaving directory
> `/home/gnuarm-linaro/build/gcc-linaro-4.7-2012.05/arm
> -none-eabi/thumb/libgcc'
> make[3]: *** [multi-do] Error 1
> make[3]: Leaving directory
> `/home/gnuarm-linaro/build/gcc-linaro-4.7-2012.05/arm
> -none-eabi/libgcc'
> make[2]: *** [all-multi] Error 2
> make[2]: Leaving directory
> `/home/gnuarm-linaro/build/gcc-linaro-4.7-2012.05/arm
> -none-eabi/libgcc'
> make[1]: *** [all-target-libgcc] Error 2
> make[1]: Leaving directory
> `/home/gnuarm-linaro/build/gcc-linaro-4.7-2012.05'
> make: *** [all] Error 2
>
> I have included the complete command for completeness, so it's a bit
> long, but the interesting part is where it says:
> types.h:127:16: error: expected identifier or '(' before 'char'
>
> The source at that particular line is:
> typedef    char *    caddr_t;
> which is perfectly fine.
>
> Now this error only occurs when I either do a cross compile on mingw
> (from which the terminal excerpt above comes from), or a canadian cross
> on linux (I do this because it is much faster than a cross compile on
> mingw, and it saves me another mingw error: "couldn't commit memory for
> cygwin heap, Win32 error 0" reported by make). But the error won't occur
> when I do a cross-compile on linux.
>
> My current workaround is to comment out the line where it crashes on and
> then continue the build process. It will later complain it doesn't know
> caddr_t, at which I uncomment the line again and continue again. I have
> to repeat these steps until it completes successfully, which is a lot of
> times.
>
> These are the tools I used:
> binutils-2.22
> newlib-1.20.0
> gcc-linaro-4.7-2012.05      (non-linaro gcc-4.7.0 will produce the same
> error)
> gmp, mpfr, etc I got using mingw-get
>
> Steps to reproduce:
> Make symlinks to newlib in gcc:
> ln -f -s `pdw`/newlib-1.20.0/newlib gcc-linaro-4.7-2012.05
> ln -f -s `pdw`/newlib-1.20.0/libgloss gcc-linaro-4.7-2012.05
>
> binutils:
> configure --target=arm-none-eabi --prefix=/home/gnuarm/install
> --enable-interwork --enable-multilib --with-gnu-as --with-gnu-ld
> --disable-nls --disable-werror
> make all
> make install
>
> gcc (gcc takes care of newlib):
> configure --target=arm-none-eabi --prefix=/home/gnuarm/install
> --with-arch=armv7-m --with-mode=thumb --with-float=soft
> --enable-interwork --enable-multilib --enable-languages="c,c++"
> --with-newlib --with-gnu-as --with-gnu-ld --disable-nls --disable-shared
> --disable-threads --with-headers=newlib/libc/include --disable-libssp
> --disable-libstdcxx-pch --disable-libmudflap --disable-libgomp
> --disable-werror --with-system-zlib --disable-newlib-supplied-syscalls
> make all
> make install
>
> For the canadian cross build I use i586-mingw32msvc as host
>
> I hope I got all the info in this message and that it's clear.
>
> Arie