glibc/sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac
Rajalakshmi Srinivasaraghavan c2ff5ec13f powerpc: Set minimum kernel version for powerpc64le
This patch sets the minimum kernel version required for ppc64le as 3.10.0.
2017-02-07 10:49:47 +05:30

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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/powerpc64/.
LIBC_SLIBDIR_RTLDDIR([lib64], [lib64])
# Define default-abi according to compiler flags.
AC_CACHE_CHECK([whether the compiler is using the PowerPC64 ELFv2 ABI],
[libc_cv_ppc64_elfv2_abi],
[AC_EGREP_CPP(yes,[#if _CALL_ELF == 2
yes
#endif
], libc_cv_ppc64_elfv2_abi=yes, libc_cv_ppc64_elfv2_abi=no)])
if test $libc_cv_ppc64_elfv2_abi = yes; then
LIBC_CONFIG_VAR([default-abi], [64-v2])
# For shlib-versions.
AC_DEFINE(HAVE_ELFV2_ABI)
else
LIBC_CONFIG_VAR([default-abi], [64-v1])
# Compiler that do not support ELFv2 ABI does not define _CALL_ELF
AC_CACHE_CHECK([whether the compiler defines _CALL_ELF],
[libc_cv_ppc64_def_call_elf],
[AC_EGREP_CPP(yes,[#ifdef _CALL_ELF
yes
#endif
], libc_cv_ppc64_def_call_elf=yes, libc_cv_ppc64_def_call_elf=no)])
if test $libc_cv_ppc64_def_call_elf = no; then
libc_extra_cppflags="$libc_extra_cppflags -D_CALL_ELF=1"
fi
fi
# Set minimum kernel version for ppc64le.
AC_CACHE_CHECK([the machine type to set minimum kernel version],
[libc_cv_ppc64_le],
[AC_EGREP_CPP(yes,[#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
yes
#endif
], arch_minimum_kernel=3.10.0, libc_cv_ppc64_le=no)])