Bootstrap broken on trunk, stage 2 gengtype: Internal error: abort in error_at_line, at gengtype.c:112

[Rainer Emrich <rainer at emrich-ebersheim dot de>]

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This is on x86_64-w64-mingw32.

build/gengtype.exe  \
                    -S ../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc -I gtyp-input.list -w tmp-gtype.state
gtyp-input.list:101: file ../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/tree-profile.c specified more than once for language (all)
gengtype: cp/cp-tree.h is in language directory 'cp' but is not tagged for that language
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/cp/cp-tree.h:524: type `abstract_class_use' previously defined
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/cp/typeck2.c:157: previously defined here
../../../../../../../opt/devel/gnu/src/gcc-mingw-w64/gcc-5.0.0/gcc/cp/cp-tree.h:5853: duplicate definition of 'struct (null)'
gengtype: Internal error: abort in error_at_line, at gengtype.c:112
Makefile:2401: recipe for target 's-gtype' failed
make[3]: *** [s-gtype] Error 1
make[3]: Leaving directory '/opt/devel/SCRATCH/tmp.wvqDtH7wOD/gcc-5.0.0/gcc-5.0.0/gcc'
Makefile:4414: recipe for target 'all-stage2-gcc' failed
make[2]: *** [all-stage2-gcc] Error 2

Any bell rings?
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