sim: ppc: drop host endian configure option

The --enable-sim-hostendian flag was purely so people had an escape route
for when cross-compiling.  This is because historically, AC_C_BIGENDIAN
did not work in those cases.  That was fixed a while ago though, so we can
require that macro everywhere now and simplify a good bit of code.

This was done for all the other ports years ago, so catch ppc up.

12 files changed, 474 insertions, 928 deletions

diff --git a/sim/ppc/ChangeLog b/sim/ppc/ChangeLog
index e2232a5..469d76b 100644
--- a/sim/ppc/ChangeLog
+++ b/sim/ppc/ChangeLog
@@ -1,3 +1,23 @@
+2021-06-16  Mike Frysinger  <vapier@gentoo.org>
+
+	* Makefile.in (HOSTENDIAN_CFLAGS): Delete.
+	* configure.ac: Delete sim-hostendian logic.
+	* altivec_registers.h (WITH_HOST_BYTE_ORDER): Rename to ...
+	(HOST_BYTE_ORDER): ... this.
+	* options.c: Likewise.
+	* sim-endian.c: Likewise.
+	* psim.c (current_host_byte_order): Delete.
+	(CURRENT_HOST_BYTE_ORDER): Rename to ...
+	(HOST_BYTE_ORDER): ... this.
+	* sim-endian-n.h: Likewise.
+	* sim-endian.h: Delete all custom endian include & define logic.
+	* std-config.h (WITH_HOST_BYTE_ORDER): Delete.
+	(LITTLE_ENDIAN): Define fallback.
+	(BIG_ENDIAN): Likewise.
+	(HOST_BYTE_ORDER): Define based on WORDS_BIGENDIAN.
+	(current_host_byte_order, CURRENT_HOST_BYTE_ORDER): Delete.
+	* config.in, configure: Regenerate.
+
 2021-06-13  Mike Frysinger  <vapier@gentoo.org>
 
 	* Makefile.in (COMMON_OBJS_NAMES, +COMMON_OBJS): New variables.
diff --git a/sim/ppc/Makefile.in b/sim/ppc/Makefile.in
index 0814a34..c1135a3 100644
--- a/sim/ppc/Makefile.in
+++ b/sim/ppc/Makefile.in
@@ -73,7 +73,6 @@ RANLIB = @RANLIB@
 
 INLINE_CFLAGS = @sim_inline@
 ENDIAN_CFLAGS = @sim_endian@
-HOSTENDIAN_CFLAGS = @sim_hostendian@
 SMP_CFLAGS = @sim_smp@
 XOR_ENDIAN_CFLAGS = @sim_xor_endian@
 BITSIZE_CFLAGS = @sim_bitsize@
@@ -88,7 +87,6 @@ WARNING_CFLAGS = @sim_warnings@
 DEVZERO_CFLAGS = @sim_devzero@
 CONFIG_CFLAGS = \
   $(ENDIAN_CFLAGS) \
-  $(HOSTENDIAN_CFLAGS) \
   $(SMP_CFLAGS) \
   $(XOR_ENDIAN_CFLAGS) \
   $(BITSIZE_CFLAGS) \
diff --git a/sim/ppc/altivec_registers.h b/sim/ppc/altivec_registers.h
index 14c27cd..2c0bff0 100644
--- a/sim/ppc/altivec_registers.h
+++ b/sim/ppc/altivec_registers.h
@@ -49,7 +49,7 @@ struct altivec_regs {
    work on N independant bits of data.  This is only for the
    instructions that actually move data around.  */
 
-#if (WITH_HOST_BYTE_ORDER == BIG_ENDIAN)
+#if (HOST_BYTE_ORDER == BIG_ENDIAN)
 #define AV_BINDEX(x)	((x) & 15)
 #define AV_HINDEX(x)	((x) & 7)
 #else
diff --git a/sim/ppc/config.in b/sim/ppc/config.in
index 7b75892..c6182ae 100644
--- a/sim/ppc/config.in
+++ b/sim/ppc/config.in
@@ -1,8 +1,5 @@
 /* config.in.  Generated from configure.ac by autoheader.  */
 
-/* Define if building universal (internal helper macro) */
-#undef AC_APPLE_UNIVERSAL_BUILD
-
 /* Define to 1 if translation of program messages to the user's native
    language is requested. */
 #undef ENABLE_NLS
@@ -77,15 +74,3 @@
 
 /* Sim assert settings */
 #undef WITH_ASSERT
-
-/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
-   significant byte first (like Motorola and SPARC, unlike Intel). */
-#if defined AC_APPLE_UNIVERSAL_BUILD
-# if defined __BIG_ENDIAN__
-#  define WORDS_BIGENDIAN 1
-# endif
-#else
-# ifndef WORDS_BIGENDIAN
-#  undef WORDS_BIGENDIAN
-# endif
-#endif
diff --git a/sim/ppc/configure b/sim/ppc/configure
index c7dd1b4..65fe184 100755
--- a/sim/ppc/configure
+++ b/sim/ppc/configure
@@ -638,7 +638,6 @@ sim_hostbitsize
 sim_bitsize
 sim_igen_smp
 sim_smp
-sim_hostendian
 sim_xor_endian
 sim_endian
 sim_inline
@@ -660,6 +659,9 @@ RANLIB
 AR
 CFLAGS_FOR_BUILD
 CC_FOR_BUILD
+EGREP
+GREP
+CPP
 zlibinc
 zlibdir
 target_os
@@ -675,9 +677,6 @@ build_vendor
 build_cpu
 build
 WERROR_CFLAGS
-EGREP
-GREP
-CPP
 CATOBJEXT
 GENCAT
 INSTOBJEXT
@@ -752,7 +751,6 @@ enable_sim_filter
 enable_sim_float
 enable_sim_hardware
 enable_sim_hostbitsize
-enable_sim_hostendian
 enable_sim_icache
 enable_sim_inline
 enable_sim_jump
@@ -1409,7 +1407,6 @@ Optional Features:
   --enable-sim-float			Specify whether the target has hard, soft, altivec or e500 floating point.
   --enable-sim-hardware=list		Specify the hardware to be included in the build.
   --enable-sim-hostbitsize=32|64	Specify host bitsize (32 or 64).
-  --enable-sim-hostendian=end		Specify host byte endian orientation.
   --enable-sim-icache=size		Specify instruction-decode cache size and type.
   --enable-sim-inline=inlines		Specify which functions should be inlined.
   --enable-sim-jump		Jump between semantic code (instead of call/return).
@@ -1603,6 +1600,37 @@ fi
 
 } # ac_fn_c_try_run
 
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
 # ac_fn_c_try_cpp LINENO
 # ----------------------
 # Try to preprocess conftest.$ac_ext, and return whether this succeeded.
@@ -1640,37 +1668,6 @@ fi
 
 } # ac_fn_c_try_cpp
 
-# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
-# Tests whether HEADER exists and can be compiled using the include files in
-# INCLUDES, setting the cache variable VAR accordingly.
-ac_fn_c_check_header_compile ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-#include <$2>
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  eval "$3=yes"
-else
-  eval "$3=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_header_compile
-
 # ac_fn_c_try_link LINENO
 # -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
@@ -3502,652 +3499,6 @@ else
 fi
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
-  CPP=
-fi
-if test -z "$CPP"; then
-  if ${ac_cv_prog_CPP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-      # Double quotes because CPP needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
-    do
-      ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  # Broken: success on invalid input.
-continue
-else
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
-  break
-fi
-
-    done
-    ac_cv_prog_CPP=$CPP
-
-fi
-  CPP=$ac_cv_prog_CPP
-else
-  ac_cv_prog_CPP=$CPP
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
-ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-
-else
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  # Broken: success on invalid input.
-continue
-else
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
-
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
-fi
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if ${ac_cv_path_GREP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in grep ggrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_GREP=$GREP
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-$as_echo "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-$as_echo_n "checking for egrep... " >&6; }
-if ${ac_cv_path_EGREP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_prog in egrep; do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
-  ac_count=0
-  $as_echo_n 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    $as_echo 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_EGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_EGREP=$EGREP
-fi
-
-   fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-$as_echo "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
-$as_echo_n "checking for ANSI C header files... " >&6; }
-if ${ac_cv_header_stdc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_stdc=yes
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then :
-  :
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ctype.h>
-#include <stdlib.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
-		     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-	|| toupper (i) != TOUPPER (i))
-      return 2;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-
-else
-  ac_cv_header_stdc=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
-$as_echo "$ac_cv_header_stdc" >&6; }
-if test $ac_cv_header_stdc = yes; then
-
-$as_echo "#define STDC_HEADERS 1" >>confdefs.h
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-		  inttypes.h stdint.h unistd.h
-do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
-"
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-# Check whether --enable-sim-hostendian was given.
-if test "${enable_sim_hostendian+set}" = set; then :
-  enableval=$enable_sim_hostendian; case "${enableval}" in
-  no)	 sim_hostendian="-DWITH_HOST_BYTE_ORDER=0";;
-  b*|B*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN";;
-  l*|L*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN";;
-  *)	 as_fn_error $? "\"Unknown value $enableval for --enable-sim-hostendian\"" "$LINENO" 5; sim_hostendian="";;
-esac
-if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
-  echo "Setting hostendian flags = $sim_hostendian" 6>&1
-fi
-else
-
-if test "x$cross_compiling" = "xno"; then
-   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
-$as_echo_n "checking whether byte ordering is bigendian... " >&6; }
-if ${ac_cv_c_bigendian+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_c_bigendian=unknown
-    # See if we're dealing with a universal compiler.
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#ifndef __APPLE_CC__
-	       not a universal capable compiler
-	     #endif
-	     typedef int dummy;
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-	# Check for potential -arch flags.  It is not universal unless
-	# there are at least two -arch flags with different values.
-	ac_arch=
-	ac_prev=
-	for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do
-	 if test -n "$ac_prev"; then
-	   case $ac_word in
-	     i?86 | x86_64 | ppc | ppc64)
-	       if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then
-		 ac_arch=$ac_word
-	       else
-		 ac_cv_c_bigendian=universal
-		 break
-	       fi
-	       ;;
-	   esac
-	   ac_prev=
-	 elif test "x$ac_word" = "x-arch"; then
-	   ac_prev=arch
-	 fi
-       done
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    if test $ac_cv_c_bigendian = unknown; then
-      # See if sys/param.h defines the BYTE_ORDER macro.
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-	     #include <sys/param.h>
-
-int
-main ()
-{
-#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
-		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
-		     && LITTLE_ENDIAN)
-	      bogus endian macros
-	     #endif
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  # It does; now see whether it defined to BIG_ENDIAN or not.
-	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-		#include <sys/param.h>
-
-int
-main ()
-{
-#if BYTE_ORDER != BIG_ENDIAN
-		 not big endian
-		#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_c_bigendian=yes
-else
-  ac_cv_c_bigendian=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    fi
-    if test $ac_cv_c_bigendian = unknown; then
-      # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <limits.h>
-
-int
-main ()
-{
-#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN)
-	      bogus endian macros
-	     #endif
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  # It does; now see whether it defined to _BIG_ENDIAN or not.
-	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <limits.h>
-
-int
-main ()
-{
-#ifndef _BIG_ENDIAN
-		 not big endian
-		#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_c_bigendian=yes
-else
-  ac_cv_c_bigendian=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    fi
-    if test $ac_cv_c_bigendian = unknown; then
-      # Compile a test program.
-      if test "$cross_compiling" = yes; then :
-  # Try to guess by grepping values from an object file.
-	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-short int ascii_mm[] =
-		  { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
-		short int ascii_ii[] =
-		  { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
-		int use_ascii (int i) {
-		  return ascii_mm[i] + ascii_ii[i];
-		}
-		short int ebcdic_ii[] =
-		  { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
-		short int ebcdic_mm[] =
-		  { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
-		int use_ebcdic (int i) {
-		  return ebcdic_mm[i] + ebcdic_ii[i];
-		}
-		extern int foo;
-
-int
-main ()
-{
-return use_ascii (foo) == use_ebcdic (foo);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
-	      ac_cv_c_bigendian=yes
-	    fi
-	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
-	      if test "$ac_cv_c_bigendian" = unknown; then
-		ac_cv_c_bigendian=no
-	      else
-		# finding both strings is unlikely to happen, but who knows?
-		ac_cv_c_bigendian=unknown
-	      fi
-	    fi
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-
-	     /* Are we little or big endian?  From Harbison&Steele.  */
-	     union
-	     {
-	       long int l;
-	       char c[sizeof (long int)];
-	     } u;
-	     u.l = 1;
-	     return u.c[sizeof (long int) - 1] == 1;
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  ac_cv_c_bigendian=no
-else
-  ac_cv_c_bigendian=yes
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-    fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
-$as_echo "$ac_cv_c_bigendian" >&6; }
- case $ac_cv_c_bigendian in #(
-   yes)
-     $as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h
-;; #(
-   no)
-      ;; #(
-   universal)
-
-$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h
-
-     ;; #(
-   *)
-     as_fn_error $? "unknown endianness
- presetting ac_cv_c_bigendian=no (or yes) will help" "$LINENO" 5 ;;
- esac
-
-  if test $ac_cv_c_bigendian = yes; then
-    sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
-  else
-    sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
-  fi
-else
-  sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
-fi
-fi
-
-
 # Check whether --enable-sim-icache was given.
 if test "${enable_sim_icache+set}" = set; then :
   enableval=$enable_sim_icache; icache="-R"
@@ -4605,6 +3956,403 @@ fi
 
 
 # BFD uses libdl when when plugins enabled.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
 
   maybe_plugins=no
   for ac_header in dlfcn.h
@@ -5159,7 +4907,6 @@ fi
 
 
 
-
 ac_config_files="$ac_config_files Makefile"
 
 ac_config_commands="$ac_config_commands default"
@@ -5274,7 +5021,6 @@ LTLIBOBJS=$ac_ltlibobjs
 
 
 
-
 : "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
diff --git a/sim/ppc/configure.ac b/sim/ppc/configure.ac
index 3b93bee..188330f 100644
--- a/sim/ppc/configure.ac
+++ b/sim/ppc/configure.ac
@@ -287,29 +287,6 @@ if test x"$silent" != x"yes" && test x"$sim_hostbitsize" != x""; then
 fi],[sim_hostbitsize=""])dnl
 
 
-AC_ARG_ENABLE(sim-hostendian,
-[  --enable-sim-hostendian=end		Specify host byte endian orientation.],
-[case "${enableval}" in
-  no)	 sim_hostendian="-DWITH_HOST_BYTE_ORDER=0";;
-  b*|B*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN";;
-  l*|L*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN";;
-  *)	 AC_MSG_ERROR("Unknown value $enableval for --enable-sim-hostendian"); sim_hostendian="";;
-esac
-if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
-  echo "Setting hostendian flags = $sim_hostendian" 6>&1
-fi],[
-if test "x$cross_compiling" = "xno"; then
-  AC_C_BIGENDIAN
-  if test $ac_cv_c_bigendian = yes; then
-    sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
-  else
-    sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
-  fi
-else
-  sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
-fi])dnl
-
-
 AC_ARG_ENABLE(sim-icache,
 [  --enable-sim-icache=size		Specify instruction-decode cache size and type.],
 [icache="-R"
@@ -799,7 +776,6 @@ AC_SUBST(sim_pk_obj)
 AC_SUBST(sim_inline)
 AC_SUBST(sim_endian)
 AC_SUBST(sim_xor_endian)
-AC_SUBST(sim_hostendian)
 AC_SUBST(sim_smp)
 AC_SUBST(sim_igen_smp)
 AC_SUBST(sim_bitsize)
diff --git a/sim/ppc/options.c b/sim/ppc/options.c
index e327187..330332d 100644
--- a/sim/ppc/options.c
+++ b/sim/ppc/options.c
@@ -117,7 +117,7 @@ print_options (void)
   printf_filtered ("Compiled on %s %s\n", __DATE__, __TIME__);
 #endif
 
-  printf_filtered ("WITH_HOST_BYTE_ORDER     = %s\n", options_byte_order (WITH_HOST_BYTE_ORDER));
+  printf_filtered ("HOST_BYTE_ORDER          = %s\n", options_byte_order (HOST_BYTE_ORDER));
   printf_filtered ("WITH_TARGET_BYTE_ORDER   = %s\n", options_byte_order (WITH_TARGET_BYTE_ORDER));
   printf_filtered ("WITH_XOR_ENDIAN          = %d\n", WITH_XOR_ENDIAN);
   printf_filtered ("WITH_SMP                 = %d\n", WITH_SMP);
diff --git a/sim/ppc/psim.c b/sim/ppc/psim.c
index 70c02f7..0c3f5a1 100644
--- a/sim/ppc/psim.c
+++ b/sim/ppc/psim.c
@@ -64,7 +64,6 @@ struct _psim {
 
 
 int current_target_byte_order;
-int current_host_byte_order;
 int current_environment;
 int current_alignment;
 int current_floating_point;
@@ -456,14 +455,6 @@ psim_create(const char *file_name,
   if (CURRENT_TARGET_BYTE_ORDER != current_target_byte_order)
     error("target and configured byte order conflict\n");
 
-  /* fill in the missing HOST BYTE ORDER information */
-  current_host_byte_order = (current_host_byte_order = 1,
-			     (*(char*)(&current_host_byte_order)
-			      ? LITTLE_ENDIAN
-			      : BIG_ENDIAN));
-  if (CURRENT_HOST_BYTE_ORDER != current_host_byte_order)
-    error("host and configured byte order conflict\n");
-
   /* fill in the missing OEA/VEA information */
   env = tree_find_string_property(root, "/openprom/options/env");
   current_environment = ((strcmp(env, "user") == 0
@@ -917,7 +908,7 @@ psim_read_register(psim *system,
       break;
 #ifdef WITH_ALTIVEC
     case 16:
-      if (CURRENT_HOST_BYTE_ORDER != CURRENT_TARGET_BYTE_ORDER)
+      if (HOST_BYTE_ORDER != CURRENT_TARGET_BYTE_ORDER)
         {
 	  union { vreg v; unsigned_8 d[2]; } h, t;
           memcpy(&h.v/*dest*/, cooked_buf/*src*/, description.size);
@@ -996,7 +987,7 @@ psim_write_register(psim *system,
       break;
 #ifdef WITH_ALTIVEC
     case 16:
-      if (CURRENT_HOST_BYTE_ORDER != CURRENT_TARGET_BYTE_ORDER)
+      if (HOST_BYTE_ORDER != CURRENT_TARGET_BYTE_ORDER)
         {
 	  union { vreg v; unsigned_8 d[2]; } h, t;
           memcpy(&t.v/*dest*/, buf/*src*/, description.size);
diff --git a/sim/ppc/sim-endian-n.h b/sim/ppc/sim-endian-n.h
index 095a642..415149e 100644
--- a/sim/ppc/sim-endian-n.h
+++ b/sim/ppc/sim-endian-n.h
@@ -38,7 +38,7 @@ INLINE_PSIM_ENDIAN\
 (unsigned_N)
 endian_t2h_N(unsigned_N raw_in)
 {
-  if (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER) {
+  if (CURRENT_TARGET_BYTE_ORDER == HOST_BYTE_ORDER) {
     return raw_in;
   }
   else {
@@ -51,7 +51,7 @@ INLINE_PSIM_ENDIAN\
 (unsigned_N)
 endian_h2t_N(unsigned_N raw_in)
 {
-  if (CURRENT_TARGET_BYTE_ORDER == CURRENT_HOST_BYTE_ORDER) {
+  if (CURRENT_TARGET_BYTE_ORDER == HOST_BYTE_ORDER) {
     return raw_in;
   }
   else {
@@ -73,7 +73,7 @@ INLINE_PSIM_ENDIAN\
 (unsigned_N)
 endian_h2be_N(unsigned_N raw_in)
 {
-  if (CURRENT_HOST_BYTE_ORDER == BIG_ENDIAN) {
+  if (HOST_BYTE_ORDER == BIG_ENDIAN) {
     return raw_in;
   }
   else {
@@ -86,7 +86,7 @@ INLINE_PSIM_ENDIAN\
 (unsigned_N)
 endian_be2h_N(unsigned_N raw_in)
 {
-  if (CURRENT_HOST_BYTE_ORDER == BIG_ENDIAN) {
+  if (HOST_BYTE_ORDER == BIG_ENDIAN) {
     return raw_in;
   }
   else {
@@ -99,7 +99,7 @@ INLINE_PSIM_ENDIAN\
 (unsigned_N)
 endian_h2le_N(unsigned_N raw_in)
 {
-  if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN) {
+  if (HOST_BYTE_ORDER == LITTLE_ENDIAN) {
     return raw_in;
   }
   else {
@@ -112,7 +112,7 @@ INLINE_PSIM_ENDIAN\
 (unsigned_N)
 endian_le2h_N(unsigned_N raw_in)
 {
-  if (CURRENT_HOST_BYTE_ORDER == LITTLE_ENDIAN) {
+  if (HOST_BYTE_ORDER == LITTLE_ENDIAN) {
     return raw_in;
   }
   else {
diff --git a/sim/ppc/sim-endian.c b/sim/ppc/sim-endian.c
index 2625d80..0f76b23 100644
--- a/sim/ppc/sim-endian.c
+++ b/sim/ppc/sim-endian.c
@@ -31,7 +31,7 @@
 #define _SWAP_1(SET,RAW) SET (RAW)
 #endif
 
-#if !defined(_SWAP_2) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htons)
+#if !defined(_SWAP_2) && (HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htons)
 #define _SWAP_2(SET,RAW) SET htons (RAW)
 #endif
 
@@ -39,7 +39,7 @@
 #define _SWAP_2(SET,RAW) SET (((RAW) >> 8) | ((RAW) << 8))
 #endif
 
-#if !defined(_SWAP_4) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htonl)
+#if !defined(_SWAP_4) && (HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htonl)
 #define _SWAP_4(SET,RAW) SET htonl (RAW)
 #endif
 
diff --git a/sim/ppc/sim-endian.h b/sim/ppc/sim-endian.h
index 9a87333..e074572 100644
--- a/sim/ppc/sim-endian.h
+++ b/sim/ppc/sim-endian.h
@@ -60,181 +60,6 @@ INLINE_PSIM_ENDIAN(unsigned_4) endian_le2h_4(unsigned_4 x);
 INLINE_PSIM_ENDIAN(unsigned_8) endian_le2h_8(unsigned_8 x);
 
 
-/* Host dependant:
-
-   The CPP below defines information about the compilation host.  In
-   particular it defines the macro's:
-
-   	WITH_HOST_BYTE_ORDER	The byte order of the host. Could
-				be any of LITTLE_ENDIAN, BIG_ENDIAN
-				or 0 (unknown).  Those macro's also
-				need to be defined.
-
- */
-
-
-/* NetBSD:
-
-   NetBSD is easy, everything you could ever want is in a header file
-   (well almost :-) */
-
-#if defined(__NetBSD__)
-# include <machine/endian.h>
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
-# endif
-# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
-#  error "host endian incorrectly configured, check config.h"
-# endif
-#endif
-
-/* Linux is similarly easy.  */
-
-#if defined(__linux__)
-# include <endian.h>
-# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
-#  define LITTLE_ENDIAN __LITTLE_ENDIAN
-# endif
-# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
-#  define BIG_ENDIAN __BIG_ENDIAN
-# endif
-# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
-#  define BYTE_ORDER __BYTE_ORDER
-# endif
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
-# endif
-# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
-#  error "host endian incorrectly configured, check config.h"
-# endif
-#endif
-
-/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
-   BIG_ENDIAN macro's */
-
-
-/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
-
-#ifndef LITTLE_ENDIAN
-#define LITTLE_ENDIAN 1234
-#endif
-#ifndef BIG_ENDIAN
-#define BIG_ENDIAN 4321
-#endif
-
-
-/* SunOS on SPARC:
-
-   Big endian last time I looked */
-
-#if defined(sparc) || defined(__sparc__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "sun was big endian last time I looked ..."
-# endif
-#endif
-
-
-/* Random x86
-
-   Little endian last time I looked */
-
-#if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "x86 was little endian last time I looked ..."
-# endif
-#endif
-
-/* Power or PowerPC running AIX  */
-#if defined(_POWER) && defined(_AIX)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "Power/PowerPC AIX was big endian last time I looked ..."
-# endif
-#endif
-
-/* Solaris running PowerPC */
-#if defined(__PPC) && defined(__sun__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "Solaris on PowerPCs was little endian last time I looked ..."
-# endif
-#endif
-
-/* HP/PA */
-#if defined(__hppa__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "HP/PA was big endian last time I looked ..."
-# endif
-#endif
-
-/* Big endian MIPS */
-#if defined(__MIPSEB__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
-#  error "MIPSEB was big endian last time I looked ..."
-# endif
-#endif
-
-/* Little endian MIPS */
-#if defined(__MIPSEL__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "MIPSEL was little endian last time I looked ..."
-# endif
-#endif
-
-/* Windows NT */
-#if defined(__WIN32__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "Windows NT was little endian last time I looked ..."
-# endif
-#endif
-
-/* Alpha running DEC unix */
-#if defined(__osf__) && defined(__alpha__)
-# if (WITH_HOST_BYTE_ORDER == 0)
-#  undef WITH_HOST_BYTE_ORDER
-#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
-# endif
-# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
-#  error "AXP running DEC unix was little endian last time I looked ..."
-# endif
-#endif
-
-
-/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
-   BIG_ENDIAN definitions available.  */
-
 /* SWAP */
 
 #define SWAP_1 swap_1
diff --git a/sim/ppc/std-config.h b/sim/ppc/std-config.h
index 6cf7f27..375ba73 100644
--- a/sim/ppc/std-config.h
+++ b/sim/ppc/std-config.h
@@ -30,18 +30,23 @@
 
    Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */
 
-#ifndef WITH_HOST_BYTE_ORDER
-#define WITH_HOST_BYTE_ORDER		0 /*unknown*/
+#ifndef LITTLE_ENDIAN
+#define LITTLE_ENDIAN 1234
+#endif
+#ifndef BIG_ENDIAN
+#define BIG_ENDIAN 4321
+#endif
+
+#ifdef WORDS_BIGENDIAN
+# define HOST_BYTE_ORDER BIG_ENDIAN
+#else
+# define HOST_BYTE_ORDER LITTLE_ENDIAN
 #endif
 
 #ifndef WITH_TARGET_BYTE_ORDER
 #define WITH_TARGET_BYTE_ORDER		0 /*unknown*/
 #endif
 
-extern int current_host_byte_order;
-#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
-				 ? WITH_HOST_BYTE_ORDER \
-				 : current_host_byte_order)
 extern int current_target_byte_order;
 #define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
 				   ? WITH_TARGET_BYTE_ORDER \