sysdeps/arm/configure

   1 # This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
   2  # Local configure fragment for sysdeps/arm.
   3
   4 #AC_DEFINE(PI_STATIC_AND_HIDDEN)
   5
   6 # We check to see if the compiler and flags are
   7 # selecting the hard-float ABI and if they are then
   8 # we set libc_cv_arm_pcs_vfp to yes which causes
   9 # HAVE_ARM_PCS_VFP to be defined in config.h and
  10 # in include/libc-symbols.h and thus available to
  11 # shlib-versions to select the appropriate name for
  12 # the dynamic linker via %ifdef.
  13
  14
  15 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
  16 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
  17 if ${ac_cv_path_GREP+:} false; then :
  18   $as_echo_n "(cached) " >&6
  19 else
  20   if test -z "$GREP"; then
  21   ac_path_GREP_found=false
  22   # Loop through the user's path and test for each of PROGNAME-LIST
  23   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
  24 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
  25 do
  26   IFS=$as_save_IFS
  27   test -z "$as_dir" && as_dir=.
  28     for ac_prog in grep ggrep; do
  29     for ac_exec_ext in '' $ac_executable_extensions; do
  30       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
  31       as_fn_executable_p "$ac_path_GREP" || continue
  32 # Check for GNU ac_path_GREP and select it if it is found.
  33   # Check for GNU $ac_path_GREP
  34 case `"$ac_path_GREP" --version 2>&1` in
  35 *GNU*)
  36   ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
  37 *)
  38   ac_count=0
  39   $as_echo_n 0123456789 >"conftest.in"
  40   while :
  41   do
  42     cat "conftest.in" "conftest.in" >"conftest.tmp"
  43     mv "conftest.tmp" "conftest.in"
  44     cp "conftest.in" "conftest.nl"
  45     $as_echo 'GREP' >> "conftest.nl"
  46     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
  47     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
  48     as_fn_arith $ac_count + 1 && ac_count=$as_val
  49     if test $ac_count -gt ${ac_path_GREP_max-0}; then
  50       # Best one so far, save it but keep looking for a better one
  51       ac_cv_path_GREP="$ac_path_GREP"
  52       ac_path_GREP_max=$ac_count
  53     fi
  54     # 10*(2^10) chars as input seems more than enough
  55     test $ac_count -gt 10 && break
  56   done
  57   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
  58 esac
  59
  60       $ac_path_GREP_found && break 3
  61     done
  62   done
  63   done
  64 IFS=$as_save_IFS
  65   if test -z "$ac_cv_path_GREP"; then
  66     as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  67   fi
  68 else
  69   ac_cv_path_GREP=$GREP
  70 fi
  71
  72 fi
  73 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
  74 $as_echo "$ac_cv_path_GREP" >&6; }
  75  GREP="$ac_cv_path_GREP"
  76
  77
  78 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
  79 $as_echo_n "checking for egrep... " >&6; }
  80 if ${ac_cv_path_EGREP+:} false; then :
  81   $as_echo_n "(cached) " >&6
  82 else
  83   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
  84    then ac_cv_path_EGREP="$GREP -E"
  85    else
  86      if test -z "$EGREP"; then
  87   ac_path_EGREP_found=false
  88   # Loop through the user's path and test for each of PROGNAME-LIST
  89   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
  90 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
  91 do
  92   IFS=$as_save_IFS
  93   test -z "$as_dir" && as_dir=.
  94     for ac_prog in egrep; do
  95     for ac_exec_ext in '' $ac_executable_extensions; do
  96       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
  97       as_fn_executable_p "$ac_path_EGREP" || continue
  98 # Check for GNU ac_path_EGREP and select it if it is found.
  99   # Check for GNU $ac_path_EGREP
 100 case `"$ac_path_EGREP" --version 2>&1` in
 101 *GNU*)
 102   ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
 103 *)
 104   ac_count=0
 105   $as_echo_n 0123456789 >"conftest.in"
 106   while :
 107   do
 108     cat "conftest.in" "conftest.in" >"conftest.tmp"
 109     mv "conftest.tmp" "conftest.in"
 110     cp "conftest.in" "conftest.nl"
 111     $as_echo 'EGREP' >> "conftest.nl"
 112     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
 113     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
 114     as_fn_arith $ac_count + 1 && ac_count=$as_val
 115     if test $ac_count -gt ${ac_path_EGREP_max-0}; then
 116       # Best one so far, save it but keep looking for a better one
 117       ac_cv_path_EGREP="$ac_path_EGREP"
 118       ac_path_EGREP_max=$ac_count
 119     fi
 120     # 10*(2^10) chars as input seems more than enough
 121     test $ac_count -gt 10 && break
 122   done
 123   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 124 esac
 125
 126       $ac_path_EGREP_found && break 3
 127     done
 128   done
 129   done
 130 IFS=$as_save_IFS
 131   if test -z "$ac_cv_path_EGREP"; then
 132     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
 133   fi
 134 else
 135   ac_cv_path_EGREP=$EGREP
 136 fi
 137
 138    fi
 139 fi
 140 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
 141 $as_echo "$ac_cv_path_EGREP" >&6; }
 142  EGREP="$ac_cv_path_EGREP"
 143
 144
 145 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler is using the ARM hard-float ABI" >&5
 146 $as_echo_n "checking whether the compiler is using the ARM hard-float ABI... " >&6; }
 147 if ${libc_cv_arm_pcs_vfp+:} false; then :
 148   $as_echo_n "(cached) " >&6
 149 else
 150   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 151 /* end confdefs.h.  */
 152 #ifdef __ARM_PCS_VFP
 153                       yes
 154                      #endif
 155
 156 _ACEOF
 157 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 158   $EGREP "yes" >/dev/null 2>&1; then :
 159   libc_cv_arm_pcs_vfp=yes
 160 else
 161   libc_cv_arm_pcs_vfp=no
 162 fi
 163 rm -f conftest*
 164
 165 fi
 166 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_pcs_vfp" >&5
 167 $as_echo "$libc_cv_arm_pcs_vfp" >&6; }
 168 if test $libc_cv_arm_pcs_vfp = yes; then
 169   $as_echo "#define HAVE_ARM_PCS_VFP 1" >>confdefs.h
 170
 171   config_vars="$config_vars
 172 default-abi = hard"
 173 else
 174   config_vars="$config_vars
 175 default-abi = soft"
 176 fi
 177
 178 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the build tools support the GNU descriptor TLS scheme" >&5
 179 $as_echo_n "checking whether the build tools support the GNU descriptor TLS scheme... " >&6; }
 180 if ${libc_cv_arm_tls_desc+:} false; then :
 181   $as_echo_n "(cached) " >&6
 182 else
 183   old_CFLAGS="$CFLAGS"
 184   CFLAGS="$CFLAGS -mtls-dialect=gnu2"
 185   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 186 /* end confdefs.h.  */
 187 asm (".word\tfoo(tlsdesc)");
 188 int
 189 main ()
 190 {
 191
 192   ;
 193   return 0;
 194 }
 195 _ACEOF
 196 if ac_fn_c_try_compile "$LINENO"; then :
 197   libc_cv_arm_tls_desc=yes
 198 else
 199   libc_cv_arm_tls_desc=no
 200 fi
 201 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 202   CFLAGS="$old_CFLAGS"
 203 fi
 204 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arm_tls_desc" >&5
 205 $as_echo "$libc_cv_arm_tls_desc" >&6; }
 206 if test $libc_cv_arm_tls_desc = yes; then
 207   config_vars="$config_vars
 208 have-arm-tls-desc = yes"
 209 else
 210   config_vars="$config_vars
 211 have-arm-tls-desc = no"
 212 fi
 213
 214 libc_cv_gcc_unwind_find_fde=no
 215
 216 # Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.ac.
 217 CFLAGS=${CFLAGS% -fno-unwind-tables}
 218
 219 libc_cv_gcc_exceptions=yes
 220 exceptions=-fexceptions