Source: glibc
Version: 2.22-2
Severity: normal
User: debian-powerpc@lists.debian.org
Usertags: powerpcspe
Hello!
glibc currently fails to build from source on powerpcspe because the configure
script defaults to "--with-fp" even when building natively on powerpcspe (e500).
Although the glibc build system detects e500 through the non-availability of
FPRs
in sysdeps/powerpc/preconfigure:
case "$machine" in
powerpc64*)
base_machine=powerpc machine=powerpc/powerpc64
;;
powerpc*)
# Check for e500.
$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null > conftest.i
if grep -q __NO_FPRS__ conftest.i && ! grep -q _SOFT_FLOAT conftest.i; then
base_machine=powerpc machine=powerpc/powerpc32/e500
else
base_machine=powerpc machine=powerpc/powerpc32
fi
rm -f conftest.i
;;
esac
it does not enable the FPU emulation code with the "--without-fp" switch which
results in the aforementioned FTBFS [1]. Enabling FPU emulation in glibc is
also a requirement to be able to build gcc-5 on powerpcspe since newer versions
of gcc have been modified to use the FPU emulation in glibc instead of their
own emulation code in libgcc [2].
Thanks,
Adrian
> [1]
> https://buildd.debian.org/status/fetch.php?pkg=glibc&arch=powerpcspe&ver=2.19-18&stamp=1429072945
> [2] https://patchwork.ozlabs.org/patch/405072/
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaub...@debian.org
`. `' Freie Universitaet Berlin - glaub...@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
