sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac

   1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
   2 # Local configure fragment for sysdeps/unix/sysv/linux/powerpc/powerpc64/.
   3
   4 LIBC_SLIBDIR_RTLDDIR([lib64], [lib64])
   5
   6 # Define default-abi according to compiler flags.
   7 AC_CACHE_CHECK([whether the compiler is using the PowerPC64 ELFv2 ABI],
   8   [libc_cv_ppc64_elfv2_abi],
   9   [AC_EGREP_CPP(yes,[#if _CALL_ELF == 2
  10                       yes
  11                      #endif
  12   ], libc_cv_ppc64_elfv2_abi=yes, libc_cv_ppc64_elfv2_abi=no)])
  13 if test $libc_cv_ppc64_elfv2_abi = yes; then
  14   LIBC_CONFIG_VAR([default-abi], [64-v2])
  15   # For shlib-versions.
  16   AC_DEFINE(HAVE_ELFV2_ABI)
  17 else
  18   LIBC_CONFIG_VAR([default-abi], [64-v1])
  19   # Compiler that do not support ELFv2 ABI does not define _CALL_ELF
  20   AC_CACHE_CHECK([whether the compiler defines _CALL_ELF],
  21     [libc_cv_ppc64_def_call_elf],
  22     [AC_EGREP_CPP(yes,[#ifdef _CALL_ELF
  23                          yes
  24                        #endif
  25     ], libc_cv_ppc64_def_call_elf=yes, libc_cv_ppc64_def_call_elf=no)])
  26   if test $libc_cv_ppc64_def_call_elf = no; then
  27     libc_extra_cppflags="$libc_extra_cppflags -D_CALL_ELF=1"
  28   fi
  29 fi
  30 # Set minimum kernel version for ppc64le.
  31 AC_CACHE_CHECK([the machine type to set minimum kernel version],
  32   [libc_cv_ppc64_le],
  33   [AC_EGREP_CPP(yes,[#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  34                       yes
  35                      #endif
  36   ], arch_minimum_kernel=3.10.0, libc_cv_ppc64_le=no)])