[Bug bootstrap/44509] [4.6 Regression] Revision 160626 breaks bootstrap on *-apple-darwin*

["iains at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

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------- Comment #15 from iains at gcc dot gnu dot org  2010-06-13 11:35 -------
powerpc64-darwin9;

failed in stage3:
In file included from /usr/include/math.h:26:0,
                 from /GCC/gcc-live-trunk/gcc/genautomata.c:117:
/usr/include/architecture/ppc/math.h: In function ‘__inline_isnormalf’:
/usr/include/architecture/ppc/math.h:216:3: internal compiler error: in
lazy_hex_fp_value, at c-family/c-cppbuiltin.c:987

when I re-ran bootstrap as a single process - I noticed the following warnings:
---
number -I/GCC/gcc-live-trunk/gcc/../libdecnumber/dpd -I../libdecnumber     \
                -o build/gencondmd.o build/gencondmd.c
/GCC/gcc-live-trunk/gcc/config/rs6000/rs6000.md:5608:1: warning: implicit
declaration of function ‘RS6000_RECIP_HAVE_RSQRT_P’
[-Wimplicit-function-declaration]
---
               -DBASEVER="\"4.6.0\""
/GCC/gcc-live-trunk/gcc/c-family/c-cppbuiltin.c -o c-family/c-cppbuiltin.o
/GCC/gcc-live-trunk/gcc/c-family/c-cppbuiltin.c: In function
‘builtin_define_with_hex_fp_value’:
/GCC/gcc-live-trunk/gcc/c-family/c-cppbuiltin.c:1023:7: warning: enum
conversion in assignment is invalid in C++ [-Wc++-compat]
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44509