linux.h (CPP_PREDEFINES): Bring back -Di386 for the last time.

        * i386/linux.h (CPP_PREDEFINES): Bring back -Di386 for the last time.
        * From Christian Gafton:
        * i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
        * sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
        * sparc/linux64.h (CPP_PREDEFIENS): Add -D__sparc__.

From-SVN: r23484
4 files changed