Cross EGCS under Cygwin32 building

[David J. Fiddes]

Hi,


> I am trying to build cross egcs 1.0.3a under Cygwin32 for powerpc and I
>have 3 problems:
>1. All the time there are references to sys/types.h, stdio.h and etc..
>files which are absent. I overcome this by adding them from newlib
>directories.\, but what is the cause of the error?

You need to create a symbolic link to newlib in the EGCS directory and
re-configure. In egcs-1.0.3a do "ln -s ../newlib-1.8.0/newlib newlib" then
"ln -s ../newlib-1.8.0/libgloss libgloss" Configure with --with-newlib and
egcs will be able to find the headers.

>2. After this, the building process comes to building of F77 compiler
>despite that I explicitly pointed LANGUAGES="c c++" in make invoke. I was
>forced to manually clean all these references to f77 from make files.

Delete the libf2c and gcc/f and gcc/objc directrories. They don't work
cross-compiling.

>3. Even after this, the building fails on absence of file gcc.info. At this
>moment I gave up.

I had strange problems when trying to build a PPC cross compiler for RTEMS.
You need to upgrade from the stock Cygwin32 b19 compiler to Mumit Khan's
EGCS 1.1 or 1.0.3 binaries(see Gnu-win32 site for URL). This is a _much_
more reliable compiler and allows the PowerPC compiler to build.

Dave


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