/[grub]/grub/configure
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revision 1.100 by okuji, Sun Sep 8 02:01:14 2002 UTC revision 1.101 by okuji, Sat Oct 5 23:20:14 2002 UTC
# Line 2992  if test "${undef_flag+set}" = set; then Line 2992  if test "${undef_flag+set}" = set; then
2992    echo $ECHO_N "(cached) $ECHO_C" >&6    echo $ECHO_N "(cached) $ECHO_C" >&6
2993  else  else
2994    
2995    saved_CPPFLAGS=$CPPFLAGS    saved_CPPFLAGS="$CPPFLAGS"
2996    CPPFLAGS="-Wundef"    CPPFLAGS="-Wundef"
2997    cat >conftest.$ac_ext <<_ACEOF    cat >conftest.$ac_ext <<_ACEOF
2998  #line $LINENO "configure"  #line $LINENO "configure"
# Line 3031  cat conftest.$ac_ext >&5 Line 3031  cat conftest.$ac_ext >&5
3031  undef_flag=no  undef_flag=no
3032  fi  fi
3033  rm -f conftest.$ac_objext conftest.$ac_ext  rm -f conftest.$ac_objext conftest.$ac_ext
3034    CPPFLAGS=$saved_CPPFLAGS    CPPFLAGS="$saved_CPPFLAGS"
3035    
3036  fi  fi
3037  echo "$as_me:$LINENO: result: $undef_flag" >&5  echo "$as_me:$LINENO: result: $undef_flag" >&5
3038  echo "${ECHO_T}$undef_flag" >&6  echo "${ECHO_T}$undef_flag" >&6
3039    
3040    # The options `-falign-*' are supported by gcc 3.0 or later.
3041    # Probably it is sufficient to only check for -falign-loops.
3042    echo "$as_me:$LINENO: checking whether -falign-loops works" >&5
3043    echo $ECHO_N "checking whether -falign-loops works... $ECHO_C" >&6
3044    if test "${falign_loop_flag+set}" = set; then
3045      echo $ECHO_N "(cached) $ECHO_C" >&6
3046    else
3047    
3048      saved_CPPFLAGS="$CPPFLAGS"
3049      CPPFLAGS="-falign-loops=1"
3050      cat >conftest.$ac_ext <<_ACEOF
3051    #line $LINENO "configure"
3052    #include "confdefs.h"
3053    
3054    #ifdef F77_DUMMY_MAIN
3055    #  ifdef __cplusplus
3056         extern "C"
3057    #  endif
3058       int F77_DUMMY_MAIN() { return 1; }
3059    #endif
3060    int
3061    main ()
3062    {
3063    
3064      ;
3065      return 0;
3066    }
3067    _ACEOF
3068    rm -f conftest.$ac_objext
3069    if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
3070      (eval $ac_compile) 2>&5
3071      ac_status=$?
3072      echo "$as_me:$LINENO: \$? = $ac_status" >&5
3073      (exit $ac_status); } &&
3074             { ac_try='test -s conftest.$ac_objext'
3075      { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
3076      (eval $ac_try) 2>&5
3077      ac_status=$?
3078      echo "$as_me:$LINENO: \$? = $ac_status" >&5
3079      (exit $ac_status); }; }; then
3080      falign_loop_flag=yes
3081    else
3082      echo "$as_me: failed program was:" >&5
3083    cat conftest.$ac_ext >&5
3084    falign_loop_flag=no
3085    fi
3086    rm -f conftest.$ac_objext conftest.$ac_ext
3087      CPPFLAGS="$saved_CPPFLAGS"
3088    
3089    fi
3090    echo "$as_me:$LINENO: result: $falign_loop_flag" >&5
3091    echo "${ECHO_T}$falign_loop_flag" >&6
3092    
3093  # Force no alignment to save space.  # Force no alignment to save space.
3094  CPPFLAGS="$CPPFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"  if test "x$falign_loop_flag" = xyes; then
3095      CPPFLAGS="$CPPFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1"
3096    else
3097      CPPFLAGS="$CPPFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"
3098    fi
3099    
3100  if test "x$undef_flag" = xyes; then  if test "x$undef_flag" = xyes; then
3101    CPPFLAGS="$CPPFLAGS -Wundef"    CPPFLAGS="$CPPFLAGS -Wundef"

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