* aclocal.m4, configure: Rebuilt.

	* acinclude.m4 (LIB_AC_PROG_CC): Provide appropriate AC_PROG_ symbol.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29699 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 696 insertions, 354 deletions

diff --git a/zlib/ChangeLog.gcj b/zlib/ChangeLog.gcj
index 898072b45d6..18887884205 100644
--- a/zlib/ChangeLog.gcj
+++ b/zlib/ChangeLog.gcj
@@ -1,3 +1,8 @@
+1999-09-28  Tom Tromey  <tromey@cygnus.com>
+
+	* aclocal.m4, configure: Rebuilt.
+	* acinclude.m4 (LIB_AC_PROG_CC): Provide appropriate AC_PROG_ symbol.
+
 Mon Aug  9 18:33:38 1999  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
 
 	* Makefile.in: Rebuilt.
diff --git a/zlib/acinclude.m4 b/zlib/acinclude.m4
index 67bb203341e..c304a53a91d 100644
--- a/zlib/acinclude.m4
+++ b/zlib/acinclude.m4
@@ -6,6 +6,8 @@
 
 AC_DEFUN(LIB_AC_PROG_CC,
 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
+dnl Fool anybody using AC_PROG_CC.
+AC_PROVIDE([AC_PROG_CC])
 AC_CHECK_PROG(CC, gcc, gcc)
 if test -z "$CC"; then
   AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
diff --git a/zlib/aclocal.m4 b/zlib/aclocal.m4
index 9dca9e4c307..15b36a88404 100644
--- a/zlib/aclocal.m4
+++ b/zlib/aclocal.m4
@@ -18,6 +18,8 @@ dnl PARTICULAR PURPOSE.
 
 AC_DEFUN(LIB_AC_PROG_CC,
 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
+dnl Fool anybody using AC_PROG_CC.
+AC_PROVIDE([AC_PROG_CC])
 AC_CHECK_PROG(CC, gcc, gcc)
 if test -z "$CC"; then
   AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
@@ -174,7 +176,7 @@ else
 fi])
 
 
-# serial 40 AC_PROG_LIBTOOL
+# serial 35 AC_PROG_LIBTOOL
 AC_DEFUN(AC_PROG_LIBTOOL,
 [AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
 
@@ -183,9 +185,8 @@ AC_CACHE_SAVE
 
 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
-LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
-LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
-DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
+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])
@@ -216,6 +217,8 @@ AC_REQUIRE([AC_PROG_RANLIB])dnl
 AC_REQUIRE([AC_PROG_CC])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
 
@@ -224,16 +227,10 @@ 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="$libtool_flags --with-gnu-ld"
-ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
-[libtool_flags="$libtool_flags --enable-dlopen"])
-ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
-[libtool_flags="$libtool_flags --enable-win32-dll"])
-AC_ARG_ENABLE(libtool-lock,
-  [  --disable-libtool-lock  avoid locking (might break parallel builds)])
-test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
-test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
 
 # Some flags need to be propagated to the compiler or linker for good
 # libtool support.
@@ -269,28 +266,33 @@ case "$host" in
   fi
   ;;
 
-ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
-[*-*-cygwin* | *-*-mingw*)
-  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
-  AC_CHECK_TOOL(AS, as, false)
-  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+*-*-cygwin*)
+  AC_SYS_LIBTOOL_CYGWIN
   ;;
-])
+
 esac
-])
 
-# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
-AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
+# enable the --disable-libtool-lock switch
+
+AC_ARG_ENABLE(libtool-lock,
+[  --disable-libtool-lock  force libtool not to do file locking],
+need_locks=$enableval,
+need_locks=yes)
+
+if test x"$need_locks" = xno; then
+  libtool_flags="$libtool_flags --disable-lock"
+fi
+])
 
-# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
-AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
+# 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(AC_ENABLE_SHARED, [dnl
-define([AC_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=>>AC_ENABLE_SHARED_DEFAULT],
@@ -315,15 +317,15 @@ enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
 ])
 
 # AC_DISABLE_SHARED - set the default shared flag to --disable-shared
-AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
-AC_ENABLE_SHARED(no)])
+AC_DEFUN(AC_DISABLE_SHARED,
+[AC_ENABLE_SHARED(no)])
 
 # 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(AC_ENABLE_STATIC, [dnl
-define([AC_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=>>AC_ENABLE_STATIC_DEFAULT],
@@ -348,16 +350,16 @@ enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
 ])
 
 # AC_DISABLE_STATIC - set the default static flag to --disable-static
-AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
-AC_ENABLE_STATIC(no)])
+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, [dnl
-define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
+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],
@@ -382,8 +384,9 @@ 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_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
-AC_ENABLE_FAST_INSTALL(no)])
+AC_DEFUN(AC_DISABLE_FAST_INSTALL,
+[AC_ENABLE_FAST_INSTALL(no)])
+
 
 # AC_PROG_LD - find the path to the GNU or non-GNU linker
 AC_DEFUN(AC_PROG_LD,
@@ -401,7 +404,7 @@ if test "$ac_cv_prog_gcc" = yes; then
   case "$ac_prog" in
     # Accept absolute paths.
 changequote(,)dnl
-    [\\/]* | [A-Za-z]:[\\/]*)
+    /* | [A-Za-z]:[\\/]*)
       re_direlt='/[^/][^/]*/\.\./'
 changequote([,])dnl
       # Canonicalize the path of ld
@@ -427,10 +430,10 @@ else
 fi
 AC_CACHE_VAL(ac_cv_path_LD,
 [if test -z "$LD"; then
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
   for ac_dir in $PATH; do
     test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+    if test -f "$ac_dir/$ac_prog"; then
       ac_cv_path_LD="$ac_dir/$ac_prog"
       # Check to see if the program is GNU ld.  I'd rather use --version,
       # but apparently some GNU ld's only accept -v.
@@ -475,10 +478,10 @@ AC_CACHE_VAL(ac_cv_path_NM,
   # Let the user override the test.
   ac_cv_path_NM="$NM"
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
   for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
     test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
+    if test -f $ac_dir/nm; then
       # Check to see if the nm accepts a BSD-compat flag.
       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
       #   nm: unknown option "B" ignored
@@ -502,22 +505,227 @@ AC_MSG_RESULT([$NM])
 AC_SUBST(NM)
 ])
 
-# AC_CHECK_LIBM - check for math library
-AC_DEFUN(AC_CHECK_LIBM,
+# 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
-LIBM=
-case "$host" in
-*-*-beos* | *-*-cygwin*)
-  # These system don't have libm
+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]'
   ;;
-*-ncr-sysv4.3*)
-  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
-  AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
+cygwin* | mingw*)
+  ac_symcode='[ABCDGISTW]'
   ;;
-*)
-  AC_CHECK_LIB(m, main, LIBM="-lm")
+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
@@ -528,14 +736,13 @@ esac
 # '${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, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [
   case "$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
-  INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
 ])
 
 # AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
@@ -547,23 +754,16 @@ AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
 # 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_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
-  AC_CHECK_LIB(ltdl, main,
-  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
-  [if test x"$enable_ltdl_install" = xno; then
-     AC_MSG_WARN([libltdl not installed, but installation disabled])
-   else
-     enable_ltdl_install=yes
-   fi
+AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [
+  AC_CHECK_LIB(ltdl, main, LIBLTDL="-lltdl", [
+    case "$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"yes"; then
-    ac_configure_args="$ac_configure_args --enable-ltdl-install"
+  if test x"$enable_ltdl_install" != x"no"; then
     LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
-    INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
-  else
-    ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
-    LIBLTDL="-lltdl"
-    INCLTDL=
   fi
 ])
 
@@ -575,7 +775,7 @@ 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
-
-dnl This is just to silence aclocal about the macro not being used
-ifelse([AC_DISABLE_FAST_INSTALL])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
 
diff --git a/zlib/configure b/zlib/configure
index 70efbee2614..fb5397d8b71 100755
--- a/zlib/configure
+++ b/zlib/configure
@@ -32,7 +32,7 @@ ac_help="$ac_help
 ac_help="$ac_help
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]"
 ac_help="$ac_help
-  --disable-libtool-lock  avoid locking (might break parallel builds)"
+  --disable-libtool-lock  force libtool not to do file locking"
 
 # Initialize some variables set by options.
 # The variables have the same names as the options, with
@@ -1079,10 +1079,11 @@ if test "${with_system_zlib+set}" = set; then
 fi
 
 
+
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1086: checking for $ac_word" >&5
+echo "configure:1087: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1112,7 +1113,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1116: checking for $ac_word" >&5
+echo "configure:1117: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1161,7 +1162,7 @@ fi
 fi
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1165: checking whether we are using GNU C" >&5
+echo "configure:1166: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1170,7 +1171,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1174: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1175: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1185,7 +1186,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1189: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1190: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1284,7 +1285,7 @@ fi
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1288: checking for $ac_word" >&5
+echo "configure:1289: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1311,228 +1312,6 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-# Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1318: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test -n "$CC"; then
-  ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_CC="gcc"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
-
-if test -z "$CC"; then
-  # Extract the first word of "cc", so it can be a program name with args.
-set dummy cc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1348: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test -n "$CC"; then
-  ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_prog_rejected=no
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
-        ac_prog_rejected=yes
-	continue
-      fi
-      ac_cv_prog_CC="cc"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-if test $ac_prog_rejected = yes; then
-  # We found a bogon in the path, so make sure we never use it.
-  set dummy $ac_cv_prog_CC
-  shift
-  if test $# -gt 0; then
-    # We chose a different compiler from the bogus one.
-    # However, it has the same basename, so the bogon will be chosen
-    # first if we set CC to just the basename; use the full file name.
-    shift
-    set dummy "$ac_dir/$ac_word" "$@"
-    shift
-    ac_cv_prog_CC="$@"
-  fi
-fi
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
-
-  if test -z "$CC"; then
-    case "`uname -s`" in
-    *win32* | *WIN32*)
-      # Extract the first word of "cl", so it can be a program name with args.
-set dummy cl; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1399: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test -n "$CC"; then
-  ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_CC="cl"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
- ;;
-    esac
-  fi
-  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
-fi
-
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1431: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
-
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-cat > conftest.$ac_ext << EOF
-
-#line 1442 "configure"
-#include "confdefs.h"
-
-main(){return(0);}
-EOF
-if { (eval echo configure:1447: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  ac_cv_prog_cc_works=yes
-  # If we can't run a trivial program, we are probably using a cross compiler.
-  if (./conftest; exit) 2>/dev/null; then
-    ac_cv_prog_cc_cross=no
-  else
-    ac_cv_prog_cc_cross=yes
-  fi
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  ac_cv_prog_cc_works=no
-fi
-rm -fr conftest*
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
-if test $ac_cv_prog_cc_works = no; then
-  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
-fi
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1473: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
-echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1478: checking whether we are using GNU C" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.c <<EOF
-#ifdef __GNUC__
-  yes;
-#endif
-EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1487: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
-  ac_cv_prog_gcc=yes
-else
-  ac_cv_prog_gcc=no
-fi
-fi
-
-echo "$ac_t""$ac_cv_prog_gcc" 1>&6
-
-if test $ac_cv_prog_gcc = yes; then
-  GCC=yes
-else
-  GCC=
-fi
-
-ac_test_CFLAGS="${CFLAGS+set}"
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=
-echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1506: checking whether ${CC-cc} accepts -g" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  echo 'void f(){}' > conftest.c
-if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
-  ac_cv_prog_cc_g=yes
-else
-  ac_cv_prog_cc_g=no
-fi
-rm -f conftest*
-
-fi
-
-echo "$ac_t""$ac_cv_prog_cc_g" 1>&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 "$GCC" = yes; then
-    CFLAGS="-O2"
-  else
-    CFLAGS=
-  fi
-fi
-
 # Check whether --with-gnu-ld or --without-gnu-ld was given.
 if test "${with_gnu_ld+set}" = set; then
   withval="$with_gnu_ld"
@@ -1545,11 +1324,11 @@ ac_prog=ld
 if test "$ac_cv_prog_gcc" = yes; then
   # Check if gcc -print-prog-name=ld gives a path.
   echo $ac_n "checking for ld used by GCC""... $ac_c" 1>&6
-echo "configure:1549: checking for ld used by GCC" >&5
+echo "configure:1328: checking for ld used by GCC" >&5
   ac_prog=`($CC -print-prog-name=ld) 2>&5`
   case "$ac_prog" in
     # Accept absolute paths.
-    [\\/]* | [A-Za-z]:[\\/]*)
+    /* | [A-Za-z]:[\\/]*)
       re_direlt='/[^/][^/]*/\.\./'
       # Canonicalize the path of ld
       ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
@@ -1569,19 +1348,19 @@ echo "configure:1549: checking for ld used by GCC" >&5
   esac
 elif test "$with_gnu_ld" = yes; then
   echo $ac_n "checking for GNU ld""... $ac_c" 1>&6
-echo "configure:1573: checking for GNU ld" >&5
+echo "configure:1352: checking for GNU ld" >&5
 else
   echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
-echo "configure:1576: checking for non-GNU ld" >&5
+echo "configure:1355: checking for non-GNU ld" >&5
 fi
 if eval "test \"`echo '$''{'ac_cv_path_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test -z "$LD"; then
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
   for ac_dir in $PATH; do
     test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+    if test -f "$ac_dir/$ac_prog"; then
       ac_cv_path_LD="$ac_dir/$ac_prog"
       # Check to see if the program is GNU ld.  I'd rather use --version,
       # but apparently some GNU ld's only accept -v.
@@ -1608,7 +1387,7 @@ fi
 test -z "$LD" && { echo "configure: error: no acceptable ld found in \$PATH" 1>&2; exit 1; }
 
 echo $ac_n "checking if the linker ($LD) is GNU ld""... $ac_c" 1>&6
-echo "configure:1612: checking if the linker ($LD) is GNU ld" >&5
+echo "configure:1391: checking if the linker ($LD) is GNU ld" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gnu_ld'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1624,7 +1403,7 @@ echo "$ac_t""$ac_cv_prog_gnu_ld" 1>&6
 
 
 echo $ac_n "checking for BSD-compatible nm""... $ac_c" 1>&6
-echo "configure:1628: checking for BSD-compatible nm" >&5
+echo "configure:1407: checking for BSD-compatible nm" >&5
 if eval "test \"`echo '$''{'ac_cv_path_NM'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1632,10 +1411,10 @@ else
   # Let the user override the test.
   ac_cv_path_NM="$NM"
 else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
   for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
     test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
+    if test -f $ac_dir/nm; then
       # Check to see if the nm accepts a BSD-compat flag.
       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
       #   nm: unknown option "B" ignored
@@ -1660,8 +1439,212 @@ NM="$ac_cv_path_NM"
 echo "$ac_t""$NM" 1>&6
 
 
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+echo $ac_n "checking command to parse $NM output""... $ac_c" 1>&6
+echo "configure:1445: checking command to parse $NM output" >&5
+if eval "test \"`echo '$''{'ac_cv_sys_global_symbol_pipe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  # These are sane defaults that work on at least a few old systems.
+# {They come from Ultrix.  What could be older than Ultrix?!! ;)}
+
+# 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
+
+# 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.$ac_ext <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func;return 0;}
+EOF
+
+  if { (eval echo configure:1508: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+    # Now try to grab the symbols.
+    ac_nlist=conftest.nm
+  
+    if { (eval echo configure:1512: \"$NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist\") 1>&5; (eval $NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) 2>&5; } && test -s "$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;
+}
+lt_preloaded_symbols[] =
+{
+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$no_builtin_flag"
+	  if { (eval echo configure:1564: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+	    ac_pipe_works=yes
+	  else
+	    echo "configure: failed program was:" >&5
+	    cat conftest.c >&5
+	  fi
+	  LIBS="$ac_save_LIBS"
+	  CFLAGS="$ac_save_CFLAGS"
+	else
+	  echo "cannot find nm_test_func in $ac_nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $ac_nlist" >&5
+      fi
+    else
+      echo "cannot run $ac_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.c >&5
+  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
+
+fi
+
+
+ac_result=yes
+if test -z "$ac_cv_sys_global_symbol_pipe"; then
+   ac_result=no
+fi
+echo "$ac_t""$ac_result" 1>&6
+
+echo $ac_n "checking for _ prefix in compiled symbols""... $ac_c" 1>&6
+echo "configure:1610: checking for _ prefix in compiled symbols" >&5
+if eval "test \"`echo '$''{'ac_cv_sys_symbol_underscore'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_cv_sys_symbol_underscore=no
+cat > conftest.$ac_ext <<EOF
+void nm_test_func(){}
+int main(){nm_test_func;return 0;}
+EOF
+if { (eval echo configure:1619: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  # Now try to grab the symbols.
+  ac_nlist=conftest.nm
+  if { (eval echo configure:1622: \"$NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist\") 1>&5; (eval $NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) 2>&5; } && test -s "$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" >&5
+      fi
+    fi
+  else
+    echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&5
+  fi
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.c >&5
+fi
+rm -rf conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_sys_symbol_underscore" 1>&6
+USE_SYMBOL_UNDERSCORE=${ac_cv_sys_symbol_underscore=no}
+
 echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:1665: checking whether ln -s works" >&5
+echo "configure:1648: checking whether ln -s works" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1681,32 +1664,30 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
+if test $host != $build; then
+  ac_tool_prefix=${host_alias}-
+else
+  ac_tool_prefix=
+fi
+
 
 # Check for any special flags to pass to ltconfig.
 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"
 
-
-# Check whether --enable-libtool-lock or --disable-libtool-lock was given.
-if test "${enable_libtool_lock+set}" = set; then
-  enableval="$enable_libtool_lock"
-  :
-fi
-
-test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
-test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
-
 # Some flags need to be propagated to the compiler or linker for good
 # libtool support.
 case "$host" in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 1709 "configure"' > conftest.$ac_ext
-  if { (eval echo configure:1710: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  echo '#line 1690 "configure"' > conftest.$ac_ext
+  if { (eval echo configure:1691: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
     case "`/usr/bin/file conftest.o`" in
     *32-bit*)
       LD="${LD-ld} -32"
@@ -1727,19 +1708,19 @@ case "$host" in
   SAVE_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -belf"
   echo $ac_n "checking whether the C compiler needs -belf""... $ac_c" 1>&6
-echo "configure:1731: checking whether the C compiler needs -belf" >&5
+echo "configure:1712: checking whether the C compiler needs -belf" >&5
 if eval "test \"`echo '$''{'lt_cv_cc_needs_belf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1736 "configure"
+#line 1717 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1743: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1724: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   lt_cv_cc_needs_belf=yes
 else
@@ -1758,9 +1739,161 @@ echo "$ac_t""$lt_cv_cc_needs_belf" 1>&6
   fi
   ;;
 
+*-*-cygwin*)
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:1747: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_DLLTOOL'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+DLLTOOL="$ac_cv_prog_DLLTOOL"
+if test -n "$DLLTOOL"; then
+  echo "$ac_t""$DLLTOOL" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+if test -z "$ac_cv_prog_DLLTOOL"; then
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:1779: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_DLLTOOL'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_DLLTOOL="dlltool"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_prog_DLLTOOL" && ac_cv_prog_DLLTOOL="false"
+fi
+fi
+DLLTOOL="$ac_cv_prog_DLLTOOL"
+if test -n "$DLLTOOL"; then
+  echo "$ac_t""$DLLTOOL" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+else
+  DLLTOOL="false"
+fi
+fi
+
+# Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
+set dummy ${ac_tool_prefix}as; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:1814: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_AS'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_AS="${ac_tool_prefix}as"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+AS="$ac_cv_prog_AS"
+if test -n "$AS"; then
+  echo "$ac_t""$AS" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+if test -z "$ac_cv_prog_AS"; then
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "as", so it can be a program name with args.
+set dummy as; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:1846: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_AS'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_AS="as"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_prog_AS" && ac_cv_prog_AS="false"
+fi
+fi
+AS="$ac_cv_prog_AS"
+if test -n "$AS"; then
+  echo "$ac_t""$AS" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+else
+  AS="false"
+fi
+fi
+
+
+  ;;
 
 esac
 
+# enable the --disable-libtool-lock switch
+
+# Check whether --enable-libtool-lock or --disable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then
+  enableval="$enable_libtool_lock"
+  need_locks=$enableval
+else
+  need_locks=yes
+fi
+
+
+if test x"$need_locks" = xno; then
+  libtool_flags="$libtool_flags --disable-lock"
+fi
+
 
 # Save cache, so that ltconfig can load it
 cat > confcache <<\EOF
@@ -1813,9 +1946,8 @@ rm -f confcache
 
 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
-LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
-LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
-DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
+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 \
 || { echo "configure: error: libtool configure failed" 1>&2; exit 1; }
@@ -1869,7 +2001,7 @@ EOF
    target_all=libzgcj.la
 else
    echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1873: checking how to run the C preprocessor" >&5
+echo "configure:2005: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1884,13 +2016,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1888 "configure"
+#line 2020 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1894: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2026: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1901,13 +2033,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1905 "configure"
+#line 2037 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1911: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2043: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1918,13 +2050,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1922 "configure"
+#line 2054 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1928: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2060: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1952,17 +2084,17 @@ for ac_hdr in unistd.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1956: checking for $ac_hdr" >&5
+echo "configure:2088: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1961 "configure"
+#line 2093 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1966: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2098: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1991,12 +2123,12 @@ done
 for ac_func in getpagesize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1995: checking for $ac_func" >&5
+echo "configure:2127: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2000 "configure"
+#line 2132 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2019,7 +2151,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2023: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2155: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2044,7 +2176,7 @@ fi
 done
 
 echo $ac_n "checking for working mmap""... $ac_c" 1>&6
-echo "configure:2048: checking for working mmap" >&5
+echo "configure:2180: checking for working mmap" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2052,7 +2184,7 @@ else
   ac_cv_func_mmap_fixed_mapped=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 2056 "configure"
+#line 2188 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Haertel and Jim Avera for this test.
@@ -2192,7 +2324,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:2196: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2328: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_fixed_mapped=yes
 else
@@ -2217,12 +2349,12 @@ fi
    for ac_func in memcpy strerror
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2221: checking for $ac_func" >&5
+echo "configure:2353: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2226 "configure"
+#line 2358 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2245,7 +2377,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2249: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2381: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2272,7 +2404,7 @@ done
 
    if test "$with_system_zlib" = yes; then
       echo $ac_n "checking for deflate in -lz""... $ac_c" 1>&6
-echo "configure:2276: checking for deflate in -lz" >&5
+echo "configure:2408: checking for deflate in -lz" >&5
 ac_lib_var=`echo z'_'deflate | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2280,7 +2412,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lz  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2284 "configure"
+#line 2416 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2291,7 +2423,7 @@ int main() {
 deflate()
 ; return 0; }
 EOF
-if { (eval echo configure:2295: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2427: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2323,17 +2455,17 @@ for ac_hdr in unistd.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2327: checking for $ac_hdr" >&5
+echo "configure:2459: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2332 "configure"
+#line 2464 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2337: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2469: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2556,7 +2688,10 @@ s%@CC@%$CC%g
 s%@RANLIB@%$RANLIB%g
 s%@LD@%$LD%g
 s%@NM@%$NM%g
+s%@USE_SYMBOL_UNDERSCORE@%$USE_SYMBOL_UNDERSCORE%g
 s%@LN_S@%$LN_S%g
+s%@DLLTOOL@%$DLLTOOL%g
+s%@AS@%$AS%g
 s%@LIBTOOL@%$LIBTOOL%g
 s%@COMPPATH@%$COMPPATH%g
 s%@CPP@%$CPP%g