I'm seeing a build failure under build-many-glibcs for the
powerpc-linux-gnu-soft configuration.  The syndrome is that some (but
not all) of the object files going into libc_pic.os are compiled with
-mhard-float and so the final link of libc.so.6 blows up:

/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/../../../../powerpc-glibc-linux-gnu/bin/ld:
/home/zack/projects/gnu/glibc-many/build/glibcs/powerpc-linux-gnu-soft/glibc/libc_pic.os
uses hard float,
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/libgcc.a(_floatditf.o)
uses soft float
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/../../../../powerpc-glibc-linux-gnu/bin/ld:
failed to merge target specific data of file
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/libgcc.a(_floatditf.o)
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/../../../../powerpc-glibc-linux-gnu/bin/ld:
/home/zack/projects/gnu/glibc-many/build/glibcs/powerpc-linux-gnu-soft/glibc/libc_pic.os
uses hard float,
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/libgcc.a(ibm-ldouble.o)
uses soft float
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/../../../../powerpc-glibc-linux-gnu/bin/ld:
failed to merge target specific data of file
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/libgcc.a(ibm-ldouble.o)
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/../../../../powerpc-glibc-linux-gnu/bin/ld:
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/libgcc.a(ibm-ldouble.o):
in function `__gcc_qadd':
/home/zack/projects/gnu/glibc-many/src/gcc/libgcc/config/rs6000/ibm-ldouble.c:126:
undefined reference to `__adddf3'
/home/zack/projects/gnu/glibc-many/install/compilers/powerpc-linux-gnu-soft/lib/gcc/powerpc-glibc-linux-gnu/9.1.1/../../../../powerpc-glibc-linux-gnu/bin/ld:
/home/zack/projects/gnu/glibc-many/src/gcc/libgcc/config/rs6000/ibm-ldouble.c:128:
undefined reference to `__unorddf2'
[etc]

The complete set of logs are attached. Can someone who understands the
configuration space for PowerPC cross compilation please investigate?

zw