sysdeps/unix/sysv/linux/powerpc/configure

   1 # This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
   2  # Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
   3
   4
   5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
   6 $as_echo_n "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... " >&6; }
   7 if ${libc_cv_mlong_double_128ibm+:} false; then :
   8   $as_echo_n "(cached) " >&6
   9 else
  10   save_CFLAGS="$CFLAGS"
  11 CFLAGS="$CFLAGS -mlong-double-128"
  12 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
  13 /* end confdefs.h.  */
  14 #include <float.h>
  15 int
  16 main ()
  17 {
  18
  19 #if LDBL_MANT_DIG != 106
  20 # error "compiler doesn't implement IBM extended format of long double"
  21 #endif
  22 long double foobar (long double x) { return x; }
  23   ;
  24   return 0;
  25 }
  26 _ACEOF
  27 if ac_fn_c_try_compile "$LINENO"; then :
  28   libc_cv_mlong_double_128ibm=yes
  29 else
  30   libc_cv_mlong_double_128ibm=no
  31 fi
  32 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  33 CFLAGS="$save_CFLAGS"
  34 fi
  35 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128ibm" >&5
  36 $as_echo "$libc_cv_mlong_double_128ibm" >&6; }
  37
  38 if test "$libc_cv_mlong_double_128ibm" = no; then
  39   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
  40 $as_echo_n "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... " >&6; }
  41 if ${libc_cv_mabi_ibmlongdouble+:} false; then :
  42   $as_echo_n "(cached) " >&6
  43 else
  44     save_CFLAGS="$CFLAGS"
  45   CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
  46   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
  47 /* end confdefs.h.  */
  48 #include <float.h>
  49 int
  50 main ()
  51 {
  52
  53 #if LDBL_MANT_DIG != 106
  54 # error "compiler doesn't implement IBM extended format of long double"
  55 #endif
  56 long double foobar (long double x) { return x; }
  57   ;
  58   return 0;
  59 }
  60 _ACEOF
  61 if ac_fn_c_try_compile "$LINENO"; then :
  62   libc_cv_mabi_ibmlongdouble=yes
  63 else
  64   libc_cv_mabi_ibmlongdouble=no
  65 fi
  66 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  67   CFLAGS="$save_CFLAGS"
  68 fi
  69 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mabi_ibmlongdouble" >&5
  70 $as_echo "$libc_cv_mabi_ibmlongdouble" >&6; }
  71
  72   if test "$libc_cv_mabi_ibmlongdouble" = yes; then
  73     CFLAGS="$CFLAGS -mabi=ibmlongdouble"
  74   else
  75     as_fn_error $? "this configuration requires -mlong-double-128 IBM extended format support" "$LINENO" 5
  76   fi
  77 fi
  78
  79 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-tls-get-addr-optimize" >&5
  80 $as_echo_n "checking for linker that supports --no-tls-get-addr-optimize... " >&6; }
  81 libc_linker_feature=no
  82 if test x"$gnu_ld" = x"yes"; then
  83   cat > conftest.c <<EOF
  84 int _start (void) { return 42; }
  85 EOF
  86   if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
  87                     -Wl,--no-tls-get-addr-optimize -nostdlib -nostartfiles
  88                     -fPIC -shared -o conftest.so conftest.c
  89                     1>&5'
  90   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  91   (eval $ac_try) 2>&5
  92   ac_status=$?
  93   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  94   test $ac_status = 0; }; }
  95   then
  96     if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,--no-tls-get-addr-optimize -nostdlib \
  97         -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
  98         | grep "warning: --no-tls-get-addr-optimize ignored" > /dev/null 2>&1; then
  99       true
 100     else
 101       libc_linker_feature=yes
 102     fi
 103   fi
 104   rm -f conftest*
 105 fi
 106 if test $libc_linker_feature = yes; then
 107   libc_cv_tls_get_addr_optimize=yes
 108 else
 109   libc_cv_tls_get_addr_optimize=no
 110 fi
 111 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
 112 $as_echo "$libc_linker_feature" >&6; }
 113 config_vars="$config_vars
 114 have-tls-get-addr-optimize = $libc_cv_tls_get_addr_optimize"
 115
 116 ldd_rewrite_script=sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed