Re: cross compiler missing header?

[Michael Eager <eager at eagercon dot com>]

There are cross-dependencies between gcc and glibc.  Build the glibc
headers with your host gcc.  Then build gcc with these headers,
then glibc, and finally cross gcc.

Deskin Miller wrote:
> Hello,
>     I am having trouble building a gcc cross-compiler.  I had no trouble 
> making a native compiler, but when making a cross compiler, I always get 
> this error message.  It appears that certain header files, <signal.h> 
> and <sys/ucontext.h>, are not present in the standard include 
> directories.  Any help would be greatly appreciated.  FYI, I am running 
> Red Hat 9, gcc 3.3, binutils 2.14, glibc 2.3.2, on an i686 architecture; 
> the options I passed to configure were "--host=i686-pc-linux-gnu 
> --enable-target-optspace --enable-threads=posix 
> --target=i386-pc-linux-gnu --with-cpu=i386".  Any help you could provide 
> would be greatly appreciated.  Below is the log of the relevant portion 
> of the make process:
>
>
> ============BEGIN MAKE LOG===============
>
> /usr/src/jedi-linux/src/gcc/gcc-build/gcc/xgcc 
> -B/usr/src/jedi-linux/src/gcc/gcc
> -build/gcc/ -B/usr/local/i386-pc-linux-gnu/bin/ 
> -B/usr/local/i386-pc-linux-gnu/l
> ib/ -isystem /usr/local/i386-pc-linux-gnu/include -O2  -DIN_GCC 
> -DCROSS_COMPILE
>  -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes 
> -isystem ./i
> nclude  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 
> -D__GCC_FLOAT_NOT_NEEDED -Dinh
> ibit_libc -I. -I. -I../../gcc-3.3/gcc -I../../gcc-3.3/gcc/. 
> -I../../gcc-3.3/gcc/
> config -I../../gcc-3.3/gcc/../include  -DL_muldi3 -c 
> ../../gcc-3.3/gcc/libgcc2.c
> -o libgcc/./_muldi3.o
> In file included from tconfig.h:23,
>                 from ../../gcc-3.3/gcc/libgcc2.c:36:
> ../../gcc-3.3/gcc/config/i386/linux.h:232:20: signal.h: No such file or 
> director
> y
> ../../gcc-3.3/gcc/config/i386/linux.h:233:26: sys/ucontext.h: No such 
> file or di
> rectory
> make[2]: *** [libgcc/./_muldi3.o] Error 1
> make[2]: Leaving directory `/usr/src/jedi-linux/src/gcc/gcc-build/gcc'
> make[1]: *** [libgcc.a] Error 2
> make[1]: Leaving directory `/usr/src/jedi-linux/src/gcc/gcc-build/gcc'
> make: *** [all-gcc] Error 2
>
> =================END MAKE LOG==================
>
>
> Thanks again!
>
> Deskin Miller
>
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--
Michael J. Eager	Eager Consulting	eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306	(650) 325-8077