C99 bfd configury

Certain library headers and functions are required by C99.  This
removes configure tests for them.  The patch also removes AC_ISC_POSIX
and AC_HEADER_DIRENT, which the autoconf manual states are obsolescent.
sys/time.h is no longer tangled up with time.h so it can be handled by
the gprof configure.

	* configure.ac: Don't check for long long or long double type.
	Don't check for alloca.h, limits.h, stddef.h, stdlib.h, string.h,
	strings.h, time.h, wchar.h, wctype.h or sys/time.h.  Don't check
	for strtoull, free, malloc, realloc, getenv, strstr, snprintf,
	vsnprintf, strlen or setitimer.  Sort AC_CHECK_DECLS.
	(AC_ISC_POSIX): Don't invoke.
	(AC_HEADER_TIME, AC_HEADER_DIRENT, ACX_HEADER_STRING): Likewise.
	* sysdep.h: Remove many HAVE_*_H checks and fallback declarations.
	Do test HAVE_SYS_TYPES_H.  Don't include sys/time.h.  Reorder
	header order as per automake AC_INCLUDES_DEFAULT.
	* bfd-in.h: Include inttypes.h unconditionally.
	* bfd.c (_bfd_doprnt, _bfd_doprnt_scan): Assume long long and
	long double are available.
	(bfd_scan_vma): Assume long long and strtoull are available.
	* elflink.c: Include limits.h unconditionally.
	* elfnn-riscv.c: Likewise.
	* wasm-module.c: Likewise.
	* hpux-core.c: Include dirent.h unconditionally.
	* trad-core.c: Likewise.
	* hosts/x86-64linux.h: Include stdlib.h unconditionally.
	* peXXigen.c: Remove HAVE_WCHAR_H and HAVE_WCTYPE_H checks.
	* elf32-m68hc1x.c: Don't include alloca-conf.h.
	* elf64-hppa.c: Likewise.
	* som.c: Likewise.
	* wasm-module.c: Likewise.
	* xsym.c: Likewise.
	* bfd-in2.h: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.

19 files changed, 636 insertions, 1962 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 0fcdf19..34b61fd 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,35 @@
+2021-04-05  Alan Modra  <amodra@gmail.com>
+
+	* configure.ac: Don't check for long long or long double type.
+	Don't check for alloca.h, limits.h, stddef.h, stdlib.h, string.h,
+	strings.h, time.h, wchar.h, wctype.h or sys/time.h.  Don't check
+	for strtoull, free, malloc, realloc, getenv, strstr, snprintf,
+	vsnprintf, strlen or setitimer.  Sort AC_CHECK_DECLS.
+	(AC_ISC_POSIX): Don't invoke.
+	(AC_HEADER_TIME, AC_HEADER_DIRENT, ACX_HEADER_STRING): Likewise.
+	* sysdep.h: Remove many HAVE_*_H checks and fallback declarations.
+	Do test HAVE_SYS_TYPES_H.  Don't include sys/time.h.  Reorder
+	header order as per automake AC_INCLUDES_DEFAULT.
+	* bfd-in.h: Include inttypes.h unconditionally.
+	* bfd.c (_bfd_doprnt, _bfd_doprnt_scan): Assume long long and
+	long double are available.
+	(bfd_scan_vma): Assume long long and strtoull are available.
+	* elflink.c: Include limits.h unconditionally.
+	* elfnn-riscv.c: Likewise.
+	* wasm-module.c: Likewise.
+	* hpux-core.c: Include dirent.h unconditionally.
+	* trad-core.c: Likewise.
+	* hosts/x86-64linux.h: Include stdlib.h unconditionally.
+	* peXXigen.c: Remove HAVE_WCHAR_H and HAVE_WCTYPE_H checks.
+	* elf32-m68hc1x.c: Don't include alloca-conf.h.
+	* elf64-hppa.c: Likewise.
+	* som.c: Likewise.
+	* wasm-module.c: Likewise.
+	* xsym.c: Likewise.
+	* bfd-in2.h: Regenerate.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
 2021-04-01  Tamar Christina  <tamar.christina@arm.com>
 
 	PR ld/26659
diff --git a/bfd/bfd-in.h b/bfd/bfd-in.h
index 1fbccca..a4888f9 100644
--- a/bfd/bfd-in.h
+++ b/bfd/bfd-in.h
@@ -78,23 +78,7 @@ typedef BFD_HOST_64_BIT bfd_int64_t;
 typedef BFD_HOST_U_64_BIT bfd_uint64_t;
 #endif
 
-#ifdef HAVE_INTTYPES_H
-# include <inttypes.h>
-#else
-# if BFD_HOST_64BIT_LONG
-#  define BFD_PRI64 "l"
-# elif defined (__MSVCRT__)
-#  define BFD_PRI64 "I64"
-# else
-#  define BFD_PRI64 "ll"
-# endif
-# undef PRId64
-# define PRId64 BFD_PRI64 "d"
-# undef PRIu64
-# define PRIu64 BFD_PRI64 "u"
-# undef PRIx64
-# define PRIx64 BFD_PRI64 "x"
-#endif
+#include <inttypes.h>
 
 #if BFD_ARCH_SIZE >= 64
 #define BFD64
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 2b431da..cdfb933 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -85,23 +85,7 @@ typedef BFD_HOST_64_BIT bfd_int64_t;
 typedef BFD_HOST_U_64_BIT bfd_uint64_t;
 #endif
 
-#ifdef HAVE_INTTYPES_H
-# include <inttypes.h>
-#else
-# if BFD_HOST_64BIT_LONG
-#  define BFD_PRI64 "l"
-# elif defined (__MSVCRT__)
-#  define BFD_PRI64 "I64"
-# else
-#  define BFD_PRI64 "ll"
-# endif
-# undef PRId64
-# define PRId64 BFD_PRI64 "d"
-# undef PRIu64
-# define PRIu64 BFD_PRI64 "u"
-# undef PRIx64
-# define PRIx64 BFD_PRI64 "x"
-#endif
+#include <inttypes.h>
 
 #if BFD_ARCH_SIZE >= 64
 #define BFD64
diff --git a/bfd/bfd.c b/bfd/bfd.c
index abe5093..6e5d339 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -1042,12 +1042,7 @@ _bfd_doprnt (FILE *stream, const char *format, union _bfd_doprnt_args *args)
 			*sptr++ = ptr[-1];
 			*sptr = '\0';
 #endif
-#if defined (__GNUC__) || defined (HAVE_LONG_LONG)
 			PRINT_TYPE (long long, ll);
-#else
-			/* Fake it and hope for the best.  */
-			PRINT_TYPE (long, l);
-#endif
 			break;
 		      }
 		  }
@@ -1062,14 +1057,7 @@ _bfd_doprnt (FILE *stream, const char *format, union _bfd_doprnt_args *args)
 		if (wide_width == 0)
 		  PRINT_TYPE (double, d);
 		else
-		  {
-#if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
-		    PRINT_TYPE (long double, ld);
-#else
-		    /* Fake it and hope for the best.  */
-		    PRINT_TYPE (double, d);
-#endif
-		  }
+		  PRINT_TYPE (long double, ld);
 	      }
 	      break;
 	    case 's':
@@ -1271,11 +1259,7 @@ _bfd_doprnt_scan (const char *format, union _bfd_doprnt_args *args)
 			break;
 		      case 2:
 		      default:
-#if defined (__GNUC__) || defined (HAVE_LONG_LONG)
 			arg_type = LongLong;
-#else
-			arg_type = Long;
-#endif
 			break;
 		      }
 		  }
@@ -1290,13 +1274,7 @@ _bfd_doprnt_scan (const char *format, union _bfd_doprnt_args *args)
 		if (wide_width == 0)
 		  arg_type = Double;
 		else
-		  {
-#if defined (__GNUC__) || defined (HAVE_LONG_DOUBLE)
-		    arg_type = LongDouble;
-#else
-		    arg_type = Double;
-#endif
-		  }
+		  arg_type = LongDouble;
 	      }
 	      break;
 	    case 's':
@@ -1906,10 +1884,8 @@ bfd_scan_vma (const char *string, const char **end, int base)
   if (sizeof (bfd_vma) <= sizeof (unsigned long))
     return strtoul (string, (char **) end, base);
 
-#if defined (HAVE_STRTOULL) && defined (HAVE_LONG_LONG)
   if (sizeof (bfd_vma) <= sizeof (unsigned long long))
     return strtoull (string, (char **) end, base);
-#endif
 
   if (base == 0)
     {
diff --git a/bfd/config.in b/bfd/config.in
index 14f3cac..ba5ce68 100644
--- a/bfd/config.in
+++ b/bfd/config.in
@@ -18,9 +18,6 @@
    language is requested. */
 #undef ENABLE_NLS
 
-/* Define to 1 if you have the <alloca.h> header file. */
-#undef HAVE_ALLOCA_H
-
 /* Define to 1 if you have the declaration of `asprintf', and to 0 if you
    don't. */
 #undef HAVE_DECL_ASPRINTF
@@ -32,9 +29,9 @@
 /* Define to 1 if you have the declaration of `ffs', and to 0 if you don't. */
 #undef HAVE_DECL_FFS
 
-/* Define to 1 if you have the declaration of `free', and to 0 if you don't.
-   */
-#undef HAVE_DECL_FREE
+/* Define to 1 if you have the declaration of `fopen64', and to 0 if you
+   don't. */
+#undef HAVE_DECL_FOPEN64
 
 /* Define to 1 if you have the declaration of `fseeko', and to 0 if you don't.
    */
@@ -52,46 +49,14 @@
    don't. */
 #undef HAVE_DECL_FTELLO64
 
-/* Define to 1 if you have the declaration of `getenv', and to 0 if you don't.
-   */
-#undef HAVE_DECL_GETENV
-
-/* Define to 1 if you have the declaration of `malloc', and to 0 if you don't.
-   */
-#undef HAVE_DECL_MALLOC
-
-/* Define to 1 if you have the declaration of `realloc', and to 0 if you
-   don't. */
-#undef HAVE_DECL_REALLOC
-
-/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
-   don't. */
-#undef HAVE_DECL_SNPRINTF
-
 /* Define to 1 if you have the declaration of `stpcpy', and to 0 if you don't.
    */
 #undef HAVE_DECL_STPCPY
 
-/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
-   don't. */
-#undef HAVE_DECL_STRNLEN
-
-/* Define to 1 if you have the declaration of `strstr', and to 0 if you don't.
-   */
-#undef HAVE_DECL_STRSTR
-
 /* Define to 1 if you have the declaration of `vasprintf', and to 0 if you
    don't. */
 #undef HAVE_DECL_VASPRINTF
 
-/* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you
-   don't. */
-#undef HAVE_DECL_VSNPRINTF
-
-/* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
-   */
-#undef HAVE_DIRENT_H
-
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
@@ -143,15 +108,6 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
-/* Define to 1 if you have the <limits.h> header file. */
-#undef HAVE_LIMITS_H
-
-/* Define to 1 if the system has the type `long double'. */
-#undef HAVE_LONG_DOUBLE
-
-/* Define to 1 if the system has the type `long long'. */
-#undef HAVE_LONG_LONG
-
 /* Define if <sys/procfs.h> has lwpstatus_t. */
 #undef HAVE_LWPSTATUS_T
 
@@ -179,9 +135,6 @@
 /* Define to 1 if you have the `mprotect' function. */
 #undef HAVE_MPROTECT
 
-/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
-#undef HAVE_NDIR_H
-
 /* Define if <sys/procfs.h> has prpsinfo32_t. */
 #undef HAVE_PRPSINFO32_T
 
@@ -227,12 +180,6 @@
 /* Define if <sys/procfs.h> has pxstatus_t. */
 #undef HAVE_PXSTATUS_T
 
-/* Define to 1 if you have the `setitimer' function. */
-#undef HAVE_SETITIMER
-
-/* Define to 1 if you have the <stddef.h> header file. */
-#undef HAVE_STDDEF_H
-
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
@@ -245,26 +192,15 @@
 /* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 
-/* Define to 1 if you have the `strtoull' function. */
-#undef HAVE_STRTOULL
-
 /* Define if struct core_dumpx has member c_impl */
 #undef HAVE_ST_C_IMPL
 
 /* Define to 1 if you have the `sysconf' function. */
 #undef HAVE_SYSCONF
 
-/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
-   */
-#undef HAVE_SYS_DIR_H
-
 /* Define to 1 if you have the <sys/file.h> header file. */
 #undef HAVE_SYS_FILE_H
 
-/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
-   */
-#undef HAVE_SYS_NDIR_H
-
 /* Define to 1 if you have the <sys/param.h> header file. */
 #undef HAVE_SYS_PARAM_H
 
@@ -277,24 +213,12 @@
 /* Define to 1 if you have the <sys/stat.h> header file. */
 #undef HAVE_SYS_STAT_H
 
-/* Define to 1 if you have the <sys/time.h> header file. */
-#undef HAVE_SYS_TIME_H
-
 /* Define to 1 if you have the <sys/types.h> header file. */
 #undef HAVE_SYS_TYPES_H
 
-/* Define to 1 if you have the <time.h> header file. */
-#undef HAVE_TIME_H
-
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
-/* Define to 1 if you have the <wchar.h> header file. */
-#undef HAVE_WCHAR_H
-
-/* Define to 1 if you have the <wctype.h> header file. */
-#undef HAVE_WCTYPE_H
-
 /* Define if <sys/procfs.h> has win32_pstatus_t. */
 #undef HAVE_WIN32_PSTATUS_T
 
@@ -344,12 +268,6 @@
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
-/* Define if you can safely include both <string.h> and <strings.h>. */
-#undef STRING_WITH_STRINGS
-
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#undef TIME_WITH_SYS_TIME
-
 /* Name of host specific header file to include in trad-core.c. */
 #undef TRAD_HEADER
 
diff --git a/bfd/configure b/bfd/configure
index fa499bb..7190d2e 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -717,12 +717,6 @@ LIBTOOL
 EGREP
 GREP
 CPP
-RANLIB
-AR
-AM_BACKSLASH
-AM_DEFAULT_VERBOSITY
-AM_DEFAULT_V
-AM_V
 am__fastdepCC_FALSE
 am__fastdepCC_TRUE
 CCDEPMODE
@@ -733,6 +727,19 @@ AMDEP_TRUE
 am__quote
 am__include
 DEPDIR
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+RANLIB
+AR
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
 am__untar
 am__tar
 AMTAR
@@ -756,13 +763,6 @@ am__isrc
 INSTALL_DATA
 INSTALL_SCRIPT
 INSTALL_PROGRAM
-OBJEXT
-EXEEXT
-ac_ct_CC
-CPPFLAGS
-LDFLAGS
-CFLAGS
-CC
 target_os
 target_vendor
 target_cpu
@@ -816,9 +816,9 @@ SHELL'
 ac_subst_files=''
 ac_user_opts='
 enable_option_checking
-enable_dependency_tracking
 enable_silent_rules
 enable_shared
+enable_dependency_tracking
 enable_static
 with_pic
 enable_fast_install
@@ -1471,13 +1471,13 @@ Optional Features:
   --disable-option-checking  ignore unrecognized --enable/--with options
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --enable-shared[=PKGS]  build shared libraries [default=no]
   --enable-dependency-tracking
                           do not reject slow dependency extractors
   --disable-dependency-tracking
                           speeds up one-time build
-  --enable-silent-rules   less verbose build output (undo: "make V=1")
-  --disable-silent-rules  verbose build output (undo: "make V=0")
-  --enable-shared[=PKGS]  build shared libraries [default=no]
   --enable-static[=PKGS]  build static libraries [default=yes]
   --enable-fast-install[=PKGS]
                           optimize for fast installation [default=yes]
@@ -1642,52 +1642,6 @@ fi
 
 } # ac_fn_c_try_compile
 
-# ac_fn_c_try_link LINENO
-# -----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_link ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 test -x conftest$ac_exeext
-       }; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_retval=1
-fi
-  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
-  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
-  # interfere with the next link command; also delete a directory that is
-  # left behind by Apple's compiler.  We do this before executing the actions.
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_link
-
 # ac_fn_c_try_cpp LINENO
 # ----------------------
 # Try to preprocess conftest.$ac_ext, and return whether this succeeded.
@@ -1885,6 +1839,52 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_check_header_compile
 
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
 # ac_fn_c_check_func LINENO FUNC VAR
 # ----------------------------------
 # Tests whether FUNC exists, setting the cache variable VAR accordingly
@@ -1952,60 +1952,6 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_check_func
 
-# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
-# -------------------------------------------
-# Tests whether TYPE exists after having included INCLUDES, setting cache
-# variable VAR accordingly.
-ac_fn_c_check_type ()
-{
-  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
-  eval "$3=no"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-if (sizeof ($2))
-	 return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$4
-int
-main ()
-{
-if (sizeof (($2)))
-	    return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
-  eval "$3=yes"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_type
-
 # ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
 # --------------------------------------------
 # Tries to find the compile-time value of EXPR in a program that includes
@@ -2733,914 +2679,6 @@ test -n "$target_alias" &&
   test "$program_prefix$program_suffix$program_transform_name" = \
     NONENONEs,x,x, &&
   program_prefix=${target_alias}-
-# Expand $ac_aux_dir to an absolute path.
-am_aux_dir=`cd "$ac_aux_dir" && pwd`
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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-  case $ac_file in
-    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
-    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
-       break;;
-  esac
-done
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
-fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
-$as_echo "$ac_cv_objext" >&6; }
-OBJEXT=$ac_cv_objext
-ac_objext=$OBJEXT
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
-$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if ${ac_cv_c_compiler_gnu+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-#ifndef __GNUC__
-       choke me
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_compiler_gnu=yes
-else
-  ac_compiler_gnu=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-$as_echo "$ac_cv_c_compiler_gnu" >&6; }
-if test $ac_compiler_gnu = yes; then
-  GCC=yes
-else
-  GCC=
-fi
-ac_test_CFLAGS=${CFLAGS+set}
-ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
-$as_echo_n "checking whether $CC accepts -g... " >&6; }
-if ${ac_cv_prog_cc_g+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_save_c_werror_flag=$ac_c_werror_flag
-   ac_c_werror_flag=yes
-   ac_cv_prog_cc_g=no
-   CFLAGS="-g"
-   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_prog_cc_g=yes
-else
-  CFLAGS=""
-      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-else
-  ac_c_werror_flag=$ac_save_c_werror_flag
-	 CFLAGS="-g"
-	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_prog_cc_g=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-$as_echo "$ac_cv_prog_cc_g" >&6; }
-if test "$ac_test_CFLAGS" = set; then
-  CFLAGS=$ac_save_CFLAGS
-elif test $ac_cv_prog_cc_g = yes; then
-  if test "$GCC" = yes; then
-    CFLAGS="-g -O2"
-  else
-    CFLAGS="-g"
-  fi
-else
-  if test "$GCC" = yes; then
-    CFLAGS="-O2"
-  else
-    CFLAGS=
-  fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
-$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if ${ac_cv_prog_cc_c89+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_prog_cc_c89=no
-ac_save_CC=$CC
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdarg.h>
-#include <stdio.h>
-struct stat;
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
-{
-  return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
-  char *s;
-  va_list v;
-  va_start (v,p);
-  s = g (p, va_arg (v,int));
-  va_end (v);
-  return s;
-}
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
-   function prototypes and stuff, but not '\xHH' hex character constants.
-   These don't provoke an error unfortunately, instead are silently treated
-   as 'x'.  The following induces an error, until -std is added to get
-   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
-   array size at least.  It's necessary to write '\x00'==0 to get something
-   that's true only with -std.  */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
-
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
-   inside strings and character constants.  */
-#define FOO(x) 'x'
-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
-
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
-  ;
-  return 0;
-}
-_ACEOF
-for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
-	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
-do
-  CC="$ac_save_CC $ac_arg"
-  if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_prog_cc_c89=$ac_arg
-fi
-rm -f core conftest.err conftest.$ac_objext
-  test "x$ac_cv_prog_cc_c89" != "xno" && break
-done
-rm -f conftest.$ac_ext
-CC=$ac_save_CC
-
-fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c89" in
-  x)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
-  xno)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
-  *)
-    CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
-esac
-if test "x$ac_cv_prog_cc_c89" != xno; then :
-
-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
-
-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 whether $CC understands -c and -o together" >&5
-$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
-if ${am_cv_prog_cc_c_o+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-  # Make sure it works both with $CC and with simple cc.
-  # Following AC_PROG_CC_C_O, we do the test twice because some
-  # compilers refuse to overwrite an existing .o file with -o,
-  # though they will create one.
-  am_cv_prog_cc_c_o=yes
-  for am_i in 1 2; do
-    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
-   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
-   ac_status=$?
-   echo "$as_me:$LINENO: \$? = $ac_status" >&5
-   (exit $ac_status); } \
-         && test -f conftest2.$ac_objext; then
-      : OK
-    else
-      am_cv_prog_cc_c_o=no
-      break
-    fi
-  done
-  rm -f core conftest*
-  unset am_i
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
-$as_echo "$am_cv_prog_cc_c_o" >&6; }
-if test "$am_cv_prog_cc_c_o" != yes; then
-   # Losing compiler, so override with the script.
-   # FIXME: It is wrong to rewrite CC.
-   # But if we don't then we get into trouble of one sort or another.
-   # A longer-term fix would be to have automake use am__CC in this case,
-   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
-   CC="$am_aux_dir/compile $CC"
-fi
-ac_ext=c
-ac_cpp='$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 library containing strerror" >&5
-$as_echo_n "checking for library containing strerror... " >&6; }
-if ${ac_cv_search_strerror+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char strerror ();
-int
-main ()
-{
-return strerror ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' cposix; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_strerror=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_strerror+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_strerror+:} false; then :
-
-else
-  ac_cv_search_strerror=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
-$as_echo "$ac_cv_search_strerror" >&6; }
-ac_res=$ac_cv_search_strerror
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
-
 
 am__api_version='1.15'
 
@@ -3814,6 +2852,9 @@ test "$program_suffix" != NONE &&
 ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
 program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
 
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
 if test x"${MISSING+set}" != xset; then
   case $am_aux_dir in
   *\ * | *\	*)
@@ -4064,69 +3105,6 @@ else
 fi
 rmdir .tst 2>/dev/null
 
-DEPDIR="${am__leading_dot}deps"
-
-ac_config_commands="$ac_config_commands depfiles"
-
-
-am_make=${MAKE-make}
-cat > confinc << 'END'
-am__doit:
-	@echo this is the am__doit target
-.PHONY: am__doit
-END
-# If we don't find an include directive, just comment out the code.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
-$as_echo_n "checking for style of include used by $am_make... " >&6; }
-am__include="#"
-am__quote=
-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# Ignore all kinds of additional output from 'make'.
-case `$am_make -s -f confmf 2> /dev/null` in #(
-*the\ am__doit\ target*)
-  am__include=include
-  am__quote=
-  _am_result=GNU
-  ;;
-esac
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
-   echo '.include "confinc"' > confmf
-   case `$am_make -s -f confmf 2> /dev/null` in #(
-   *the\ am__doit\ target*)
-     am__include=.include
-     am__quote="\""
-     _am_result=BSD
-     ;;
-   esac
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
-$as_echo "$_am_result" >&6; }
-rm -f confinc confmf
-
-# Check whether --enable-dependency-tracking was given.
-if test "${enable_dependency_tracking+set}" = set; then :
-  enableval=$enable_dependency_tracking;
-fi
-
-if test "x$enable_dependency_tracking" != xno; then
-  am_depcomp="$ac_aux_dir/depcomp"
-  AMDEPBACKSLASH='\'
-  am__nodep='_no'
-fi
- if test "x$enable_dependency_tracking" != xno; then
-  AMDEP_TRUE=
-  AMDEP_FALSE='#'
-else
-  AMDEP_TRUE='#'
-  AMDEP_FALSE=
-fi
-
-
 # Check whether --enable-silent-rules was given.
 if test "${enable_silent_rules+set}" = set; then :
   enableval=$enable_silent_rules;
@@ -4238,134 +3216,6 @@ am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
 
 
 
-depcc="$CC"   am_compiler_list=
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
-$as_echo_n "checking dependency style of $depcc... " >&6; }
-if ${am_cv_CC_dependencies_compiler_type+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
-  # We make a subdir and do the tests there.  Otherwise we can end up
-  # making bogus files that we don't know about and never remove.  For
-  # instance it was reported that on HP-UX the gcc test will end up
-  # making a dummy file named 'D' -- because '-MD' means "put the output
-  # in D".
-  rm -rf conftest.dir
-  mkdir conftest.dir
-  # Copy depcomp to subdir because otherwise we won't find it if we're
-  # using a relative directory.
-  cp "$am_depcomp" conftest.dir
-  cd conftest.dir
-  # We will build objects and dependencies in a subdirectory because
-  # it helps to detect inapplicable dependency modes.  For instance
-  # both Tru64's cc and ICC support -MD to output dependencies as a
-  # side effect of compilation, but ICC will put the dependencies in
-  # the current directory while Tru64 will put them in the object
-  # directory.
-  mkdir sub
-
-  am_cv_CC_dependencies_compiler_type=none
-  if test "$am_compiler_list" = ""; then
-     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
-  fi
-  am__universal=false
-  case " $depcc " in #(
-     *\ -arch\ *\ -arch\ *) am__universal=true ;;
-     esac
-
-  for depmode in $am_compiler_list; do
-    # Setup a source with many dependencies, because some compilers
-    # like to wrap large dependency lists on column 80 (with \), and
-    # we should not choose a depcomp mode which is confused by this.
-    #
-    # We need to recreate these files for each test, as the compiler may
-    # overwrite some of them when testing with obscure command lines.
-    # This happens at least with the AIX C compiler.
-    : > sub/conftest.c
-    for i in 1 2 3 4 5 6; do
-      echo '#include "conftst'$i'.h"' >> sub/conftest.c
-      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
-      # Solaris 10 /bin/sh.
-      echo '/* dummy */' > sub/conftst$i.h
-    done
-    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
-
-    # We check with '-c' and '-o' for the sake of the "dashmstdout"
-    # mode.  It turns out that the SunPro C++ compiler does not properly
-    # handle '-M -o', and we need to detect this.  Also, some Intel
-    # versions had trouble with output in subdirs.
-    am__obj=sub/conftest.${OBJEXT-o}
-    am__minus_obj="-o $am__obj"
-    case $depmode in
-    gcc)
-      # This depmode causes a compiler race in universal mode.
-      test "$am__universal" = false || continue
-      ;;
-    nosideeffect)
-      # After this tag, mechanisms are not by side-effect, so they'll
-      # only be used when explicitly requested.
-      if test "x$enable_dependency_tracking" = xyes; then
-	continue
-      else
-	break
-      fi
-      ;;
-    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
-      # This compiler won't grok '-c -o', but also, the minuso test has
-      # not run yet.  These depmodes are late enough in the game, and
-      # so weak that their functioning should not be impacted.
-      am__obj=conftest.${OBJEXT-o}
-      am__minus_obj=
-      ;;
-    none) break ;;
-    esac
-    if depmode=$depmode \
-       source=sub/conftest.c object=$am__obj \
-       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
-       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
-         >/dev/null 2>conftest.err &&
-       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
-       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
-       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
-       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
-      # icc doesn't choke on unknown options, it will just issue warnings
-      # or remarks (even with -Werror).  So we grep stderr for any message
-      # that says an option was ignored or not supported.
-      # When given -MP, icc 7.0 and 7.1 complain thusly:
-      #   icc: Command line warning: ignoring option '-M'; no argument required
-      # The diagnosis changed in icc 8.0:
-      #   icc: Command line remark: option '-MP' not supported
-      if (grep 'ignoring option' conftest.err ||
-          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
-        am_cv_CC_dependencies_compiler_type=$depmode
-        break
-      fi
-    fi
-  done
-
-  cd ..
-  rm -rf conftest.dir
-else
-  am_cv_CC_dependencies_compiler_type=none
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
-$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
-CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
-
- if
-  test "x$enable_dependency_tracking" != xno \
-  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
-  am__fastdepCC_TRUE=
-  am__fastdepCC_FALSE='#'
-else
-  am__fastdepCC_TRUE='#'
-  am__fastdepCC_FALSE=
-fi
-
-
 
 # POSIX will say in a future version that running "rm -f" with no argument
 # is OK; and we want to be able to make that assumption in our Makefile
@@ -4955,6 +3805,256 @@ $as_echo "$ac_try_echo"; } >&5
   test $ac_status = 0; }
 done
 
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+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 $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    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 $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
 if ${ac_cv_c_compiler_gnu+:} false; then :
@@ -5224,6 +4324,198 @@ ac_compile='$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
 
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
+$as_echo_n "checking for style of include used by $am_make... " >&6; }
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from 'make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
+$as_echo "$_am_result" >&6; }
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+  am__nodep='_no'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -11750,7 +11042,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11753 "configure"
+#line 11045 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11856,7 +11148,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11859 "configure"
+#line 11151 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13300,55 +12592,6 @@ BFD_HOST_64_BIT=
 BFD_HOST_U_64_BIT=
 BFD_HOSTPTR_T="unsigned long"
 
-
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for long double" >&5
-$as_echo_n "checking for long double... " >&6; }
-if ${ac_cv_type_long_double+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$GCC" = yes; then
-       ac_cv_type_long_double=yes
-     else
-       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-/* The Stardent Vistra knows sizeof (long double), but does
-		 not support it.  */
-	      long double foo = 0.0L;
-int
-main ()
-{
-static int test_array [1 - 2 * !(/* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
-	      sizeof (double) <= sizeof (long double))];
-test_array [0] = 0;
-return test_array [0];
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_type_long_double=yes
-else
-  ac_cv_type_long_double=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-     fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_long_double" >&5
-$as_echo "$ac_cv_type_long_double" >&6; }
-  if test $ac_cv_type_long_double = yes; then
-
-$as_echo "#define HAVE_LONG_DOUBLE 1" >>confdefs.h
-
-  fi
-
-ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
-if test "x$ac_cv_type_long_long" = xyes; then :
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_LONG_LONG 1
-_ACEOF
-
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
@@ -13382,8 +12625,6 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
-fi
-
 # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
 # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
@@ -13552,9 +12793,8 @@ $as_echo "$bfd_cv_build_exeext" >&6; }
 fi
 
 
-for ac_header in alloca.h fcntl.h limits.h stddef.h stdlib.h string.h \
-		 strings.h sys/file.h sys/resource.h sys/stat.h sys/time.h \
-		 time.h unistd.h wchar.h wctype.h
+for ac_header in fcntl.h sys/file.h sys/resource.h sys/stat.h sys/types.h \
+		 unistd.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -13567,245 +12807,9 @@ fi
 
 done
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5
-$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; }
-if ${ac_cv_header_time+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/time.h>
-#include <time.h>
 
-int
-main ()
-{
-if ((struct tm *) 0)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_header_time=yes
-else
-  ac_cv_header_time=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5
-$as_echo "$ac_cv_header_time" >&6; }
-if test $ac_cv_header_time = yes; then
-
-$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h
-
-fi
-
-ac_header_dirent=no
-for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
-  as_ac_Header=`$as_echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_hdr that defines DIR" >&5
-$as_echo_n "checking for $ac_hdr that defines DIR... " >&6; }
-if eval \${$as_ac_Header+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <$ac_hdr>
-
-int
-main ()
-{
-if ((DIR *) 0)
-return 0;
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  eval "$as_ac_Header=yes"
-else
-  eval "$as_ac_Header=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-eval ac_res=\$$as_ac_Header
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_hdr" | $as_tr_cpp` 1
-_ACEOF
-
-ac_header_dirent=$ac_hdr; break
-fi
-
-done
-# Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
-if test $ac_header_dirent = dirent.h; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing opendir" >&5
-$as_echo_n "checking for library containing opendir... " >&6; }
-if ${ac_cv_search_opendir+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char opendir ();
-int
-main ()
-{
-return opendir ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' dir; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_opendir=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_opendir+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_opendir+:} false; then :
-
-else
-  ac_cv_search_opendir=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
-$as_echo "$ac_cv_search_opendir" >&6; }
-ac_res=$ac_cv_search_opendir
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing opendir" >&5
-$as_echo_n "checking for library containing opendir... " >&6; }
-if ${ac_cv_search_opendir+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char opendir ();
-int
-main ()
-{
-return opendir ();
-  ;
-  return 0;
-}
-_ACEOF
-for ac_lib in '' x; do
-  if test -z "$ac_lib"; then
-    ac_res="none required"
-  else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-  fi
-  if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_search_opendir=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext
-  if ${ac_cv_search_opendir+:} false; then :
-  break
-fi
-done
-if ${ac_cv_search_opendir+:} false; then :
-
-else
-  ac_cv_search_opendir=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
-$as_echo "$ac_cv_search_opendir" >&6; }
-ac_res=$ac_cv_search_opendir
-if test "$ac_res" != no; then :
-  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-fi
-
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether string.h and strings.h may both be included" >&5
-$as_echo_n "checking whether string.h and strings.h may both be included... " >&6; }
-if ${gcc_cv_header_string+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <string.h>
-#include <strings.h>
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  gcc_cv_header_string=yes
-else
-  gcc_cv_header_string=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_header_string" >&5
-$as_echo "$gcc_cv_header_string" >&6; }
-if test $gcc_cv_header_string = yes; then
-
-$as_echo "#define STRING_WITH_STRINGS 1" >>confdefs.h
-
-fi
-
-for ac_func in fcntl getpagesize setitimer sysconf fdopen getuid getgid fileno fls
-do :
-  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-for ac_func in strtoull getrlimit
+for ac_func in fcntl fdopen fileno fls getgid getpagesize getrlimit getuid \
+	       sysconf
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@@ -13828,60 +12832,6 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_BASENAME $ac_have_decl
 _ACEOF
-
-ac_fn_c_check_decl "$LINENO" "ftello" "ac_cv_have_decl_ftello" "$ac_includes_default"
-if test "x$ac_cv_have_decl_ftello" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FTELLO $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "ftello64" "ac_cv_have_decl_ftello64" "$ac_includes_default"
-if test "x$ac_cv_have_decl_ftello64" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FTELLO64 $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "fseeko" "ac_cv_have_decl_fseeko" "$ac_includes_default"
-if test "x$ac_cv_have_decl_fseeko" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FSEEKO $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "fseeko64" "ac_cv_have_decl_fseeko64" "$ac_includes_default"
-if test "x$ac_cv_have_decl_fseeko64" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FSEEKO64 $ac_have_decl
-_ACEOF
-
-
-
-case "${host}" in
-*-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)
-
-$as_echo "#define USE_BINARY_FOPEN 1" >>confdefs.h
- ;;
-esac
-
 ac_fn_c_check_decl "$LINENO" "ffs" "ac_cv_have_decl_ffs" "$ac_includes_default"
 if test "x$ac_cv_have_decl_ffs" = xyes; then :
   ac_have_decl=1
@@ -13892,51 +12842,6 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_FFS $ac_have_decl
 _ACEOF
-
-ac_fn_c_check_decl "$LINENO" "free" "ac_cv_have_decl_free" "$ac_includes_default"
-if test "x$ac_cv_have_decl_free" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_FREE $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "getenv" "ac_cv_have_decl_getenv" "$ac_includes_default"
-if test "x$ac_cv_have_decl_getenv" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_GETENV $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "malloc" "ac_cv_have_decl_malloc" "$ac_includes_default"
-if test "x$ac_cv_have_decl_malloc" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_MALLOC $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "realloc" "ac_cv_have_decl_realloc" "$ac_includes_default"
-if test "x$ac_cv_have_decl_realloc" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_REALLOC $ac_have_decl
-_ACEOF
-
 ac_fn_c_check_decl "$LINENO" "stpcpy" "ac_cv_have_decl_stpcpy" "$ac_includes_default"
 if test "x$ac_cv_have_decl_stpcpy" = xyes; then :
   ac_have_decl=1
@@ -13947,18 +12852,6 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_STPCPY $ac_have_decl
 _ACEOF
-
-ac_fn_c_check_decl "$LINENO" "strstr" "ac_cv_have_decl_strstr" "$ac_includes_default"
-if test "x$ac_cv_have_decl_strstr" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_STRSTR $ac_have_decl
-_ACEOF
-
 ac_fn_c_check_decl "$LINENO" "asprintf" "ac_cv_have_decl_asprintf" "$ac_includes_default"
 if test "x$ac_cv_have_decl_asprintf" = xyes; then :
   ac_have_decl=1
@@ -13969,7 +12862,6 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_ASPRINTF $ac_have_decl
 _ACEOF
-
 ac_fn_c_check_decl "$LINENO" "vasprintf" "ac_cv_have_decl_vasprintf" "$ac_includes_default"
 if test "x$ac_cv_have_decl_vasprintf" = xyes; then :
   ac_have_decl=1
@@ -13981,39 +12873,14 @@ cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_VASPRINTF $ac_have_decl
 _ACEOF
 
-ac_fn_c_check_decl "$LINENO" "snprintf" "ac_cv_have_decl_snprintf" "$ac_includes_default"
-if test "x$ac_cv_have_decl_snprintf" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_SNPRINTF $ac_have_decl
-_ACEOF
-
-ac_fn_c_check_decl "$LINENO" "vsnprintf" "ac_cv_have_decl_vsnprintf" "$ac_includes_default"
-if test "x$ac_cv_have_decl_vsnprintf" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_VSNPRINTF $ac_have_decl
-_ACEOF
 
-ac_fn_c_check_decl "$LINENO" "strnlen" "ac_cv_have_decl_strnlen" "$ac_includes_default"
-if test "x$ac_cv_have_decl_strnlen" = xyes; then :
-  ac_have_decl=1
-else
-  ac_have_decl=0
-fi
 
-cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_STRNLEN $ac_have_decl
-_ACEOF
+case "${host}" in
+*-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)
 
+$as_echo "#define USE_BINARY_FOPEN 1" >>confdefs.h
+ ;;
+esac
 
 # Link in zlib if we can.  This allows us to read compressed debug sections.
 # This is used only by compress.c.
@@ -15777,6 +14644,57 @@ _ACEOF
 fi
 done
 
+ac_fn_c_check_decl "$LINENO" "ftello" "ac_cv_have_decl_ftello" "$ac_includes_default"
+if test "x$ac_cv_have_decl_ftello" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FTELLO $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "ftello64" "ac_cv_have_decl_ftello64" "$ac_includes_default"
+if test "x$ac_cv_have_decl_ftello64" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FTELLO64 $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "fseeko" "ac_cv_have_decl_fseeko" "$ac_includes_default"
+if test "x$ac_cv_have_decl_fseeko" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FSEEKO $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "fseeko64" "ac_cv_have_decl_fseeko64" "$ac_includes_default"
+if test "x$ac_cv_have_decl_fseeko64" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FSEEKO64 $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "fopen64" "ac_cv_have_decl_fopen64" "$ac_includes_default"
+if test "x$ac_cv_have_decl_fopen64" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FOPEN64 $ac_have_decl
+_ACEOF
+
 if test x"$ac_cv_func_ftello" = xyes -a x"$ac_cv_func_fseeko" = xyes; then
     # The cast to long int works around a bug in the HP C Compiler
 # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
@@ -16174,14 +15092,6 @@ $as_echo_n "checking that generated files are newer than configure... " >&6; }
    fi
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
 $as_echo "done" >&6; }
-if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
-  as_fn_error $? "conditional \"AMDEP\" was never defined.
-Usually this means the macro was only invoked conditionally." "$LINENO" 5
-fi
-if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
-  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
-Usually this means the macro was only invoked conditionally." "$LINENO" 5
-fi
  if test -n "$EXEEXT"; then
   am__EXEEXT_TRUE=
   am__EXEEXT_FALSE='#'
@@ -16190,6 +15100,14 @@ else
   am__EXEEXT_FALSE=
 fi
 
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${PLUGINS_TRUE}" && test -z "${PLUGINS_FALSE}"; then
   as_fn_error $? "conditional \"PLUGINS\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
diff --git a/bfd/configure.ac b/bfd/configure.ac
index cb43ebc..5341c58 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -22,7 +22,6 @@ AC_INIT([bfd], BFD_VERSION)
 AC_CONFIG_SRCDIR([libbfd.c])
 
 AC_CANONICAL_TARGET
-AC_ISC_POSIX
 
 AM_INIT_AUTOMAKE
 
@@ -205,8 +204,7 @@ BFD_HOST_64_BIT=
 BFD_HOST_U_64_BIT=
 BFD_HOSTPTR_T="unsigned long"
 
-AC_TYPE_LONG_DOUBLE
-AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
+AC_CHECK_SIZEOF(long long)
 AC_CHECK_SIZEOF(void *)
 AC_CHECK_SIZEOF(long)
 AC_CHECK_SIZEOF(int)
@@ -243,37 +241,16 @@ AC_SUBST(BFD_HOSTPTR_T)
 
 BFD_CC_FOR_BUILD
 
-AC_CHECK_HEADERS(alloca.h fcntl.h limits.h stddef.h stdlib.h string.h \
-		 strings.h sys/file.h sys/resource.h sys/stat.h sys/time.h \
-		 time.h unistd.h wchar.h wctype.h)
-AC_HEADER_TIME
-AC_HEADER_DIRENT
+AC_CHECK_HEADERS(fcntl.h sys/file.h sys/resource.h sys/stat.h sys/types.h \
+		 unistd.h)
 
-ACX_HEADER_STRING
-AC_CHECK_FUNCS(fcntl getpagesize setitimer sysconf fdopen getuid getgid fileno fls)
-AC_CHECK_FUNCS(strtoull getrlimit)
+AC_CHECK_FUNCS(fcntl fdopen fileno fls getgid getpagesize getrlimit getuid \
+	       sysconf)
 
-AC_CHECK_DECLS(basename)
-AC_CHECK_DECLS(ftello)
-AC_CHECK_DECLS(ftello64)
-AC_CHECK_DECLS(fseeko)
-AC_CHECK_DECLS(fseeko64)
+AC_CHECK_DECLS([basename, ffs, stpcpy, asprintf, vasprintf])
 
 BFD_BINARY_FOPEN
 
-AC_CHECK_DECLS(ffs)
-AC_CHECK_DECLS(free)
-AC_CHECK_DECLS(getenv)
-AC_CHECK_DECLS(malloc)
-AC_CHECK_DECLS(realloc)
-AC_CHECK_DECLS(stpcpy)
-AC_CHECK_DECLS(strstr)
-AC_CHECK_DECLS(asprintf)
-AC_CHECK_DECLS(vasprintf)
-AC_CHECK_DECLS(snprintf)
-AC_CHECK_DECLS(vsnprintf)
-AC_CHECK_DECLS(strnlen)
-
 # Link in zlib if we can.  This allows us to read compressed debug sections.
 # This is used only by compress.c.
 AM_ZLIB
@@ -1089,6 +1066,7 @@ AC_SUBST(lt_cv_dlopen_libs)
 # Hopefully a reasonable assumption since fseeko et.al. should be
 # upward compatible.
 AC_CHECK_FUNCS(ftello ftello64 fseeko fseeko64 fopen64)
+AC_CHECK_DECLS([ftello, ftello64, fseeko, fseeko64, fopen64])
 if test x"$ac_cv_func_ftello" = xyes -a x"$ac_cv_func_fseeko" = xyes; then
     AC_CHECK_SIZEOF(off_t)
 fi
diff --git a/bfd/elf32-m68hc1x.c b/bfd/elf32-m68hc1x.c
index d000404..0a815a1 100644
--- a/bfd/elf32-m68hc1x.c
+++ b/bfd/elf32-m68hc1x.c
@@ -20,7 +20,6 @@
    MA 02110-1301, USA.  */
 
 #include "sysdep.h"
-#include "alloca-conf.h"
 #include "bfd.h"
 #include "bfdlink.h"
 #include "libbfd.h"
diff --git a/bfd/elf64-hppa.c b/bfd/elf64-hppa.c
index 7d9ebf8..2338d6c 100644
--- a/bfd/elf64-hppa.c
+++ b/bfd/elf64-hppa.c
@@ -19,7 +19,6 @@
    MA 02110-1301, USA.  */
 
 #include "sysdep.h"
-#include "alloca-conf.h"
 #include "bfd.h"
 #include "libbfd.h"
 #include "elf-bfd.h"
diff --git a/bfd/elflink.c b/bfd/elflink.c
index f8d6313..e8f3a9e 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -32,9 +32,7 @@
 #include "plugin.h"
 #endif
 
-#ifdef HAVE_LIMITS_H
 #include <limits.h>
-#endif
 #ifndef CHAR_BIT
 #define CHAR_BIT 8
 #endif
diff --git a/bfd/elfnn-riscv.c b/bfd/elfnn-riscv.c
index b5be929..07089ef7 100644
--- a/bfd/elfnn-riscv.c
+++ b/bfd/elfnn-riscv.c
@@ -34,9 +34,7 @@
 #include "objalloc.h"
 #include "cpu-riscv.h"
 
-#ifdef HAVE_LIMITS_H
 #include <limits.h>
-#endif
 #ifndef CHAR_BIT
 #define CHAR_BIT 8
 #endif
diff --git a/bfd/hosts/x86-64linux.h b/bfd/hosts/x86-64linux.h
index f828bcf..e8de43f 100644
--- a/bfd/hosts/x86-64linux.h
+++ b/bfd/hosts/x86-64linux.h
@@ -31,13 +31,7 @@
 
 /* We define here only the symbols differing from their 64-bit variant.  */
 #include <sys/procfs.h>
-
-#ifdef HAVE_STDINT_H
 #include <stdint.h>
-#else
-typedef unsigned int uint32_t;
-typedef unsigned long long int uint64_t;
-#endif
 
 /* Unsigned 64-bit integer aligned to 8 bytes.  */
 typedef uint64_t __attribute__ ((__aligned__ (8))) a8_uint64_t;
diff --git a/bfd/hpux-core.c b/bfd/hpux-core.c
index d84df68..3af7e6c 100644
--- a/bfd/hpux-core.c
+++ b/bfd/hpux-core.c
@@ -48,19 +48,7 @@
 #endif /* HOST_HPPABSD */
 
 #include <sys/param.h>
-#ifdef HAVE_DIRENT_H
-# include <dirent.h>
-#else
-# ifdef HAVE_SYS_NDIR_H
-#  include <sys/ndir.h>
-# endif
-# ifdef HAVE_SYS_DIR_H
-#  include <sys/dir.h>
-# endif
-# ifdef HAVE_NDIR_H
-#  include <ndir.h>
-# endif
-#endif
+#include <dirent.h>
 #include <signal.h>
 #ifdef HPUX_CORE
 #include <machine/reg.h>
diff --git a/bfd/peXXigen.c b/bfd/peXXigen.c
index e7f1311..b9a679a 100644
--- a/bfd/peXXigen.c
+++ b/bfd/peXXigen.c
@@ -70,12 +70,8 @@
 #include "coff/internal.h"
 #include "bfdver.h"
 #include "libiberty.h"
-#ifdef HAVE_WCHAR_H
 #include <wchar.h>
-#endif
-#ifdef HAVE_WCTYPE_H
 #include <wctype.h>
-#endif
 
 /* NOTE: it's strange to be including an architecture specific header
    in what's supposed to be general (to PE/PEI) code.  However, that's
@@ -3548,16 +3544,12 @@ rsrc_write_directory (rsrc_write_data * data,
   BFD_ASSERT (nt == next_entry);
 }
 
-#if defined HAVE_WCHAR_H && ! defined __CYGWIN__ && ! defined __MINGW32__
+#if ! defined __CYGWIN__ && ! defined __MINGW32__
 /* Return the length (number of units) of the first character in S,
    putting its 'ucs4_t' representation in *PUC.  */
 
 static unsigned int
-#if defined HAVE_WCTYPE_H
 u16_mbtouc (wint_t * puc, const unsigned short * s, unsigned int n)
-#else
-u16_mbtouc (wchar_t * puc, const unsigned short * s, unsigned int n)
-#endif
 {
   unsigned short c = * s;
 
@@ -3589,7 +3581,7 @@ u16_mbtouc (wchar_t * puc, const unsigned short * s, unsigned int n)
   *puc = 0xfffd;
   return 1;
 }
-#endif /* HAVE_WCHAR_H and not Cygwin/Mingw */
+#endif /* not Cygwin/Mingw */
 
 /* Perform a comparison of two entries.  */
 static signed int
@@ -3626,20 +3618,15 @@ rsrc_cmp (bool is_name, rsrc_entry * a, rsrc_entry * b)
   res = rscpcmp ((const wchar_t *) astring, (const wchar_t *) bstring,
 		 min (alen, blen));
 
-#elif defined HAVE_WCHAR_H
+#else
   {
     unsigned int  i;
 
     res = 0;
     for (i = min (alen, blen); i--; astring += 2, bstring += 2)
       {
-#if defined HAVE_WCTYPE_H
 	wint_t awc;
 	wint_t bwc;
-#else
-	wchar_t awc;
-	wchar_t bwc;
-#endif
 
 	/* Convert UTF-16 unicode characters into wchar_t characters
 	   so that we can then perform a case insensitive comparison.  */
@@ -3649,21 +3636,14 @@ rsrc_cmp (bool is_name, rsrc_entry * a, rsrc_entry * b)
 	if (Alen != Blen)
 	  return Alen - Blen;
 
-#ifdef HAVE_WCTYPE_H
 	awc = towlower (awc);
 	bwc = towlower (bwc);
 
 	res = awc - bwc;
-#else
-	res = wcsncasecmp (& awc, & bwc, 1);
-#endif
 	if (res)
 	  break;
       }
   }
-#else
-  /* Do the best we can - a case sensitive, untranslated comparison.  */
-  res = memcmp (astring, bstring, min (alen, blen) * 2);
 #endif
 
   if (res == 0)
diff --git a/bfd/som.c b/bfd/som.c
index 5719b20..5308ac5 100644
--- a/bfd/som.c
+++ b/bfd/som.c
@@ -22,7 +22,6 @@
    02110-1301, USA.  */
 
 #include "sysdep.h"
-#include "alloca-conf.h"
 #include "bfd.h"
 #include "libiberty.h"
 #include "libbfd.h"
diff --git a/bfd/sysdep.h b/bfd/sysdep.h
index c0b96ef..aa6b095 100644
--- a/bfd/sysdep.h
+++ b/bfd/sysdep.h
@@ -27,54 +27,23 @@
 #endif
 
 #include "config.h"
-
-#ifdef HAVE_STDDEF_H
-#include <stddef.h>
-#endif
-
 #include <stdio.h>
-#include <sys/types.h>
 
-#include <errno.h>
-#if !(defined(errno) || defined(_MSC_VER) && defined(_INC_ERRNO))
-extern int errno;
-#endif
-
-#ifdef STRING_WITH_STRINGS
-#include <string.h>
-#include <strings.h>
-#else
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#else
-extern char *strchr ();
-extern char *strrchr ();
-#endif
-#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
 #endif
 
-#ifdef HAVE_STDLIB_H
 #include <stdlib.h>
-#endif
-
-#ifdef TIME_WITH_SYS_TIME
-#include <sys/time.h>
-#include <time.h>
-#else
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-#endif
+#include <stddef.h>
+#include <string.h>
 
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 
+#include <errno.h>
+#include <time.h>
+
 #ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
 #endif /* HAVE_SYS_RESOURCE_H */
@@ -123,30 +92,10 @@ extern char *strrchr ();
 extern int ffs (int);
 #endif
 
-#if !HAVE_DECL_FREE
-extern void free ();
-#endif
-
-#if !HAVE_DECL_GETENV
-extern char *getenv ();
-#endif
-
-#if !HAVE_DECL_MALLOC
-extern PTR malloc ();
-#endif
-
-#if !HAVE_DECL_REALLOC
-extern PTR realloc ();
-#endif
-
 #if !HAVE_DECL_STPCPY
 extern char *stpcpy (char *__dest, const char *__src);
 #endif
 
-#if !HAVE_DECL_STRSTR
-extern char *strstr ();
-#endif
-
 #ifdef HAVE_FTELLO
 #if !HAVE_DECL_FTELLO
 extern off_t ftello (FILE *stream);
@@ -171,10 +120,6 @@ extern int fseeko64 (FILE *stream, off64_t offset, int whence);
 #endif
 #endif
 
-#if !HAVE_DECL_STRNLEN
-size_t strnlen (const char *, size_t);
-#endif
-
 /* Define offsetof for those systems which lack it */
 
 #ifndef offsetof
diff --git a/bfd/trad-core.c b/bfd/trad-core.c
index 14627cb..2473a31 100644
--- a/bfd/trad-core.c
+++ b/bfd/trad-core.c
@@ -25,19 +25,7 @@
 #include "libaout.h"	       /* BFD a.out internal data structures */
 
 #include <sys/param.h>
-#ifdef HAVE_DIRENT_H
-# include <dirent.h>
-#else
-# ifdef HAVE_SYS_NDIR_H
-#  include <sys/ndir.h>
-# endif
-# ifdef HAVE_SYS_DIR_H
-#  include <sys/dir.h>
-# endif
-# ifdef HAVE_NDIR_H
-#  include <ndir.h>
-# endif
-#endif
+#include <dirent.h>
 #include <signal.h>
 
 #include <sys/user.h>		/* After a.out.h  */
diff --git a/bfd/wasm-module.c b/bfd/wasm-module.c
index 6382e92..5729e05 100644
--- a/bfd/wasm-module.c
+++ b/bfd/wasm-module.c
@@ -26,15 +26,12 @@
    https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md. */
 
 #include "sysdep.h"
-#include "alloca-conf.h"
 #include "bfd.h"
 #include "libiberty.h"
 #include "libbfd.h"
 #include "wasm-module.h"
 
-#ifdef HAVE_LIMITS_H
 #include <limits.h>
-#endif
 #ifndef CHAR_BIT
 #define CHAR_BIT 8
 #endif
diff --git a/bfd/xsym.c b/bfd/xsym.c
index cac111b..822cb85 100644
--- a/bfd/xsym.c
+++ b/bfd/xsym.c
@@ -21,7 +21,6 @@
 /* xSYM is the debugging format used by CodeWarrior on Mac OS classic.  */
 
 #include "sysdep.h"
-#include "alloca-conf.h"
 #include "xsym.h"
 #include "bfd.h"
 #include "libbfd.h"