1999-05-28 Martin Dorey <mdorey@madge.com>

	* elf32-i960.c: New file.
	* elf.c (prep_headers): Handle bfd_arch_i960.
	* targets.c (bfd_target_vector): Add &bfd_elf32_i960_vec.
	* config.bfd (i960-*-elf*): New target.
	* configure.in (bfd_elf32_i960_vec): New target vector.
	* Makefile.am (BFD32_BACKENDS): Add elf32-i960.lo.
	(BFD32_BACKENDS_CFILES): Add elf32-i960.c.
	* Makefile.in, aclocal.m4, configure: Rebuild.

1 files changed, 412 insertions, 59 deletions

diff --git a/bfd/aclocal.m4 b/bfd/aclocal.m4
index 4358000244..39df10e509 100644
--- a/bfd/aclocal.m4
+++ b/bfd/aclocal.m4
@@ -208,26 +208,58 @@ fi
 AC_SUBST($1)])
 
 
-# serial 25 AM_PROG_LIBTOOL
-AC_DEFUN(AM_PROG_LIBTOOL,
-[AC_REQUIRE([AM_ENABLE_SHARED])dnl
-AC_REQUIRE([AM_ENABLE_STATIC])dnl
+# serial 35 AC_PROG_LIBTOOL
+AC_DEFUN(AC_PROG_LIBTOOL,
+[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
+
+# Save cache, so that ltconfig can load it
+AC_CACHE_SAVE
+
+# Actually configure libtool.  ac_aux_dir is where install-sh is found.
+CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
+LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
+DLLTOOL="$DLLTOOL" AS="$AS" \
+${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
+$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
+|| AC_MSG_ERROR([libtool configure failed])
+
+# Reload cache, that may have been modified by ltconfig
+AC_CACHE_LOAD
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+# Redirect the config.log output again, so that the ltconfig log is not
+# clobbered by the next message.
+exec 5>>./config.log
+])
+
+AC_DEFUN(AC_LIBTOOL_SETUP,
+[AC_PREREQ(2.13)dnl
+AC_REQUIRE([AC_ENABLE_SHARED])dnl
+AC_REQUIRE([AC_ENABLE_STATIC])dnl
+AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
 AC_REQUIRE([AC_PROG_RANLIB])dnl
 AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AM_PROG_LD])dnl
-AC_REQUIRE([AM_PROG_NM])dnl
+AC_REQUIRE([AC_PROG_LD])dnl
+AC_REQUIRE([AC_PROG_NM])dnl
+AC_REQUIRE([AC_SYS_NM_PARSE])dnl
+AC_REQUIRE([AC_SYS_SYMBOL_UNDERSCORE])dnl
 AC_REQUIRE([AC_PROG_LN_S])dnl
 dnl
-# Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
-AC_SUBST(LIBTOOL)dnl
 
 # Check for any special flags to pass to ltconfig.
-libtool_flags=
+libtool_flags="--cache-file=$cache_file"
 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
+test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
+test "$lt_dlopen" = yes && libtool_flags="$libtool_flags --enable-dlopen"
 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
@@ -256,37 +288,46 @@ case "$host" in
 
 *-*-sco3.2v5*)
   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -belf"
+  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+    [AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])])
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
   ;;
 
 *-*-cygwin*)
-  AM_SYS_LIBTOOL_CYGWIN
+  AC_SYS_LIBTOOL_CYGWIN
   ;;
 
 esac
 
-# Actually configure libtool.  ac_aux_dir is where install-sh is found.
-CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
-LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
-DLLTOOL="$DLLTOOL" AS="$AS" \
-${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
-$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
-|| AC_MSG_ERROR([libtool configure failed])
+# enable the --disable-libtool-lock switch
 
-# Redirect the config.log output again, so that the ltconfig log is not
-# clobbered by the next message.
-exec 5>>./config.log
+AC_ARG_ENABLE(libtool-lock,
+[  --disable-libtool-lock  force libtool not to do file locking],
+need_locks=$enableval,
+need_locks=yes)
+
+if test x"$need_locks" = xno; then
+  libtool_flags="$libtool_flags --disable-lock"
+fi
 ])
 
-# AM_ENABLE_SHARED - implement the --enable-shared flag
-# Usage: AM_ENABLE_SHARED[(DEFAULT)]
+# AC_LIBTOOL_DLOPEN - check for dlopen support
+AC_DEFUN(AC_LIBTOOL_DLOPEN, [lt_dlopen=yes])
+
+# AC_ENABLE_SHARED - implement the --enable-shared flag
+# Usage: AC_ENABLE_SHARED[(DEFAULT)]
 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 #   `yes'.
-AC_DEFUN(AM_ENABLE_SHARED,
-[define([AM_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_DEFUN(AC_ENABLE_SHARED,
+[define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
 AC_ARG_ENABLE(shared,
 changequote(<<, >>)dnl
-<<  --enable-shared[=PKGS]  build shared libraries [default=>>AM_ENABLE_SHARED_DEFAULT],
+<<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
 changequote([, ])dnl
 [p=${PACKAGE-default}
 case "$enableval" in
@@ -304,26 +345,22 @@ no) enable_shared=no ;;
   IFS="$ac_save_ifs"
   ;;
 esac],
-enable_shared=AM_ENABLE_SHARED_DEFAULT)dnl
+enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
 ])
 
-# AM_DISABLE_SHARED - set the default shared flag to --disable-shared
-AC_DEFUN(AM_DISABLE_SHARED,
-[AM_ENABLE_SHARED(no)])
+# AC_DISABLE_SHARED - set the default shared flag to --disable-shared
+AC_DEFUN(AC_DISABLE_SHARED,
+[AC_ENABLE_SHARED(no)])
 
-# AM_DISABLE_STATIC - set the default static flag to --disable-static
-AC_DEFUN(AM_DISABLE_STATIC,
-[AM_ENABLE_STATIC(no)])
-
-# AM_ENABLE_STATIC - implement the --enable-static flag
-# Usage: AM_ENABLE_STATIC[(DEFAULT)]
+# AC_ENABLE_STATIC - implement the --enable-static flag
+# Usage: AC_ENABLE_STATIC[(DEFAULT)]
 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 #   `yes'.
-AC_DEFUN(AM_ENABLE_STATIC,
-[define([AM_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_DEFUN(AC_ENABLE_STATIC,
+[define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
 AC_ARG_ENABLE(static,
 changequote(<<, >>)dnl
-<<  --enable-static[=PKGS]  build static libraries [default=>>AM_ENABLE_STATIC_DEFAULT],
+<<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
 changequote([, ])dnl
 [p=${PACKAGE-default}
 case "$enableval" in
@@ -341,28 +378,74 @@ no) enable_static=no ;;
   IFS="$ac_save_ifs"
   ;;
 esac],
-enable_static=AM_ENABLE_STATIC_DEFAULT)dnl
+enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
+])
+
+# AC_DISABLE_STATIC - set the default static flag to --disable-static
+AC_DEFUN(AC_DISABLE_STATIC,
+[AC_ENABLE_STATIC(no)])
+
+
+# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
+# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
+#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
+#   `yes'.
+AC_DEFUN(AC_ENABLE_FAST_INSTALL,
+[define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_ARG_ENABLE(fast-install,
+changequote(<<, >>)dnl
+<<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
+changequote([, ])dnl
+[p=${PACKAGE-default}
+case "$enableval" in
+yes) enable_fast_install=yes ;;
+no) enable_fast_install=no ;;
+*)
+  enable_fast_install=no
+  # Look at the argument we got.  We use all the common list separators.
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
+  for pkg in $enableval; do
+    if test "X$pkg" = "X$p"; then
+      enable_fast_install=yes
+    fi
+  done
+  IFS="$ac_save_ifs"
+  ;;
+esac],
+enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
 ])
 
+# AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
+AC_DEFUN(AC_DISABLE_FAST_INSTALL,
+[AC_ENABLE_FAST_INSTALL(no)])
+
 
-# AM_PROG_LD - find the path to the GNU or non-GNU linker
-AC_DEFUN(AM_PROG_LD,
+# AC_PROG_LD - find the path to the GNU or non-GNU linker
+AC_DEFUN(AC_PROG_LD,
 [AC_ARG_WITH(gnu-ld,
 [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
-AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
 ac_prog=ld
 if test "$ac_cv_prog_gcc" = yes; then
   # Check if gcc -print-prog-name=ld gives a path.
   AC_MSG_CHECKING([for ld used by GCC])
   ac_prog=`($CC -print-prog-name=ld) 2>&5`
   case "$ac_prog" in
-  # Accept absolute paths.
+    # Accept absolute paths.
 changequote(,)dnl
-  /* | [A-Za-z]:\\*)
+    /* | [A-Za-z]:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
 changequote([,])dnl
-    test -z "$LD" && LD="$ac_prog"
-    ;;
+      # Canonicalize the path of ld
+      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
+      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
   "")
     # If it fails, then pretend we aren't using GCC.
     ac_prog=ld
@@ -390,7 +473,7 @@ AC_CACHE_VAL(ac_cv_path_LD,
       if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
 	test "$with_gnu_ld" != no && break
       else
-        test "$with_gnu_ld" != yes && break
+	test "$with_gnu_ld" != yes && break
       fi
     fi
   done
@@ -406,10 +489,10 @@ else
 fi
 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
 AC_SUBST(LD)
-AM_PROG_LD_GNU
+AC_PROG_LD_GNU
 ])
 
-AC_DEFUN(AM_PROG_LD_GNU,
+AC_DEFUN(AC_PROG_LD_GNU,
 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
@@ -419,8 +502,8 @@ else
 fi])
 ])
 
-# AM_PROG_NM - find the path to a BSD-compatible name lister
-AC_DEFUN(AM_PROG_NM,
+# AC_PROG_NM - find the path to a BSD-compatible name lister
+AC_DEFUN(AC_PROG_NM,
 [AC_MSG_CHECKING([for BSD-compatible nm])
 AC_CACHE_VAL(ac_cv_path_NM,
 [if test -n "$NM"; then
@@ -428,20 +511,22 @@ AC_CACHE_VAL(ac_cv_path_NM,
   ac_cv_path_NM="$NM"
 else
   IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in /usr/ucb /usr/ccs/bin $PATH /bin; do
+  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
     test -z "$ac_dir" && ac_dir=.
     if test -f $ac_dir/nm; then
       # Check to see if the nm accepts a BSD-compat flag.
       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
       #   nm: unknown option "B" ignored
       if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
-        ac_cv_path_NM="$ac_dir/nm -B"
+	ac_cv_path_NM="$ac_dir/nm -B"
+	break
       elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
-        ac_cv_path_NM="$ac_dir/nm -p"
+	ac_cv_path_NM="$ac_dir/nm -p"
+	break
       else
-        ac_cv_path_NM="$ac_dir/nm"
+	ac_cv_path_NM=${ac_cv_path_NM="$ac_dir/nm"} # keep the first match, but
+	continue # so that we can try to find one that supports BSD flags
       fi
-      break
     fi
   done
   IFS="$ac_save_ifs"
@@ -452,12 +537,280 @@ AC_MSG_RESULT([$NM])
 AC_SUBST(NM)
 ])
 
-# AM_SYS_LIBTOOL_CYGWIN - find tools needed on cygwin
-AC_DEFUN(AM_SYS_LIBTOOL_CYGWIN,
+# AC_SYS_NM_PARSE - Check for command to grab the raw symbol name followed
+# by C symbol name from nm.
+AC_DEFUN(AC_SYS_NM_PARSE,
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_NM])dnl
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output])
+AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
+[# These are sane defaults that work on at least a few old systems.
+# {They come from Ultrix.  What could be older than Ultrix?!! ;)}
+
+changequote(,)dnl
+# Character class describing NM global symbol codes.
+ac_symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+ac_sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Transform the above into a raw symbol and a C symbol.
+ac_symxfrm='\1 \2\3 \3'
+
+# Transform an extracted symbol line into a proper C declaration
+ac_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
+
+# Define system-specific variables.
+case "$host_os" in
+aix*)
+  ac_symcode='[BCDT]'
+  ;;
+cygwin* | mingw*)
+  ac_symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  ac_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
+  ;;
+irix*)
+  ac_symcode='[BCDEGRST]'
+  ;;
+solaris*)
+  ac_symcode='[BDT]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
+  ac_symcode='[ABCDGISTW]'
+fi
+changequote([,])dnl
+
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
+
+  ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ 	]\($ac_symcode\)[ 	][ 	]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"
+
+  # Check to see that the pipe works correctly.
+  ac_pipe_works=no
+  rm -f conftest.$ac_ext
+  cat > conftest.$ac_ext <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func;return 0;}
+EOF
+
+  if AC_TRY_EVAL(ac_compile); then
+    # Now try to grab the symbols.
+    ac_nlist=conftest.nm
+  
+    if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
+
+      # Try sorting and uniquifying the output.
+      if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
+	mv -f "$ac_nlist"T "$ac_nlist"
+      else
+	rm -f "$ac_nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
+	if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
+	  cat <<EOF > conftest.c
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+	  # Now generate the symbol file.
+	  eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.c'
+
+	  cat <<EOF >> conftest.c
+#if defined (__STDC__) && __STDC__
+# define lt_ptr_t void *
+#else
+# define lt_ptr_t char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+  const char *name;
+  lt_ptr_t address;
+}
+changequote(,)dnl
+lt_preloaded_symbols[] =
+changequote([,])dnl
+{
+EOF
+	sed 's/^. \(.*\) \(.*\)$/  {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.c
+	cat <<\EOF >> conftest.c
+  {0, (lt_ptr_t) 0}
+};
+
+#ifdef __cplusplus
+}
+#endif
+EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftestm.$ac_objext
+	  ac_save_LIBS="$LIBS"
+	  ac_save_CFLAGS="$CFLAGS"
+	  LIBS="conftestm.$ac_objext"
+	  CFLAGS="$CFLAGS$no_builtin_flag"
+	  if AC_TRY_EVAL(ac_link) && test -s conftest; then
+	    ac_pipe_works=yes
+	  else
+	    echo "configure: failed program was:" >&AC_FD_CC
+	    cat conftest.c >&AC_FD_CC
+	  fi
+	  LIBS="$ac_save_LIBS"
+	  CFLAGS="$ac_save_CFLAGS"
+	else
+	  echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
+	fi
+      else
+	echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
+      fi
+    else
+      echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
+    fi
+  else
+    echo "$progname: failed program was:" >&AC_FD_CC
+    cat conftest.c >&AC_FD_CC
+  fi
+  rm -rf conftest*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$ac_pipe_works" = yes; then
+    if test x"$ac_symprfx" = x"_"; then
+      ac_cv_sys_symbol_underscore=yes
+    else
+      ac_cv_sys_symbol_underscore=no
+    fi
+    break
+  else
+    ac_cv_sys_global_symbol_pipe=
+  fi
+done
+])
+
+ac_result=yes
+if test -z "$ac_cv_sys_global_symbol_pipe"; then
+   ac_result=no
+fi
+AC_MSG_RESULT($ac_result)
+])
+
+# AC_SYS_LIBTOOL_CYGWIN - find tools needed on cygwin
+AC_DEFUN(AC_SYS_LIBTOOL_CYGWIN,
 [AC_CHECK_TOOL(DLLTOOL, dlltool, false)
 AC_CHECK_TOOL(AS, as, false)
 ])
 
+# AC_SYS_SYMBOL_UNDERSCORE - does the compiler prefix global symbols
+#                            with an underscore?
+AC_DEFUN(AC_SYS_SYMBOL_UNDERSCORE,
+[AC_REQUIRE([AC_PROG_NM])dnl
+AC_REQUIRE([AC_SYS_NM_PARSE])dnl
+AC_MSG_CHECKING([for _ prefix in compiled symbols])
+AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
+[ac_cv_sys_symbol_underscore=no
+cat > conftest.$ac_ext <<EOF
+void nm_test_func(){}
+int main(){nm_test_func;return 0;}
+EOF
+if AC_TRY_EVAL(ac_compile); then
+  # Now try to grab the symbols.
+  ac_nlist=conftest.nm
+  if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
+    # See whether the symbols have a leading underscore.
+    if egrep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
+      ac_cv_sys_symbol_underscore=yes
+    else
+      if egrep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
+	:
+      else
+	echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
+      fi
+    fi
+  else
+    echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
+  fi
+else
+  echo "configure: failed program was:" >&AC_FD_CC
+  cat conftest.c >&AC_FD_CC
+fi
+rm -rf conftest*
+])
+AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
+USE_SYMBOL_UNDERSCORE=${ac_cv_sys_symbol_underscore=no}
+AC_SUBST(USE_SYMBOL_UNDERSCORE)dnl
+])
+
+# AC_CHECK_LIBM - check for math library
+AC_DEFUN(AC_CHECK_LIBM, [
+AC_CHECK_LIB(mw, _mwvalidcheckl)
+AC_CHECK_LIB(m, cos)
+])
+
+# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
+# the libltdl convenience library, adds --enable-ltdl-convenience to
+# the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
+# is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
+# to be `${top_builddir}/libltdl'.  Make sure you start DIR with
+# '${top_builddir}/' (note the single quotes!) if your package is not
+# flat, and, if you're not using automake, define top_builddir as
+# appropriate in the Makefiles.
+AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [
+  case "$enable_ltdl_convenience" in
+  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
+  "") enable_ltdl_convenience=yes
+      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
+  esac
+  LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
+])
+
+# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
+# the libltdl installable library, and adds --enable-ltdl-install to
+# the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
+# is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
+# to be `${top_builddir}/libltdl'.  Make sure you start DIR with
+# '${top_builddir}/' (note the single quotes!) if your package is not
+# flat, and, if you're not using automake, define top_builddir as
+# appropriate in the Makefiles.
+# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
+AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [
+  AC_CHECK_LIB(ltdl, main, LIBLTDL="-lltdl", [
+    case "$enable_ltdl_install" in
+    no) AC_MSG_WARN([libltdl not installed, but installation disabled]) ;;
+    "") enable_ltdl_install=yes
+        ac_configure_args="$ac_configure_args --enable-ltdl-install" ;;
+    esac
+  ])
+  if test x"$enable_ltdl_install" != x"no"; then
+    LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
+  fi
+])
+
+dnl old names
+AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
+AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
+AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
+AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
+AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
+AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
+AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
+AC_DEFUN(AM_SYS_NM_PARSE, [indir([AC_SYS_NM_PARSE])])dnl
+AC_DEFUN(AM_SYS_SYMBOL_UNDERSCORE, [indir([AC_SYS_SYMBOL_UNDERSCORE])])dnl
+AC_DEFUN(AM_SYS_LIBTOOL_CYGWIN, [indir([AC_SYS_LIBTOOL_CYGWIN])])dnl
+
 # Like AC_CONFIG_HEADER, but automatically create stamp file.
 
 AC_DEFUN(AM_CONFIG_HEADER,