# libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-## Copyright 1996, 1997, 1998, 1999, 2000, 2001## Free Software Foundation, Inc.## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996#### This program is free software; you can redistribute it and/or modify## it under the terms of the GNU General Public License as published by## the Free Software Foundation; either version 2 of the License, or## (at your option) any later version.#### This program is distributed in the hope that it will be useful, but## WITHOUT ANY WARRANTY; without even the implied warranty of## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU## General Public License for more details.#### You should have received a copy of the GNU General Public License## along with this program; if not, write to the Free Software## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.#### As a special exception to the GNU General Public License, if you## distribute this file as part of a program that contains a## configuration script generated by Autoconf, you may include it under## the same distribution terms that you use for the rest of that program.# The next line was added by Bruno Haible 2001-06-08.builtin([undefine],[symbols])# serial 46 AC_PROG_LIBTOOLAC_DEFUN([AC_PROG_LIBTOOL],[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl# This can be used to rebuild libtool when neededLIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"# Always use our own libtool.LIBTOOL='$(SHELL) $(top_builddir)/libtool'AC_SUBST(LIBTOOL)dnl# Prevent multiple expansiondefine([AC_PROG_LIBTOOL], [])])AC_DEFUN([AC_LIBTOOL_SETUP],[AC_PREREQ(2.13)dnlAC_REQUIRE([AC_ENABLE_SHARED])dnlAC_REQUIRE([AC_ENABLE_STATIC])dnlAC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnlAC_REQUIRE([AC_CANONICAL_HOST])dnlAC_REQUIRE([AC_CANONICAL_BUILD])dnlAC_REQUIRE([AC_PROG_CC])dnlAC_REQUIRE([AC_PROG_LD])dnlAC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnlAC_REQUIRE([AC_PROG_NM])dnlAC_REQUIRE([AC_PROG_LN_S])dnlAC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnlAC_REQUIRE([AC_OBJEXT])dnlAC_REQUIRE([AC_EXEEXT])dnldnl_LT_AC_PROG_ECHO_BACKSLASH# Only perform the check for file, if the check method requires itcase $deplibs_check_method infile_magic*)  if test "$file_magic_cmd" = '$MAGIC_CMD'; then    AC_PATH_MAGIC  fi  ;;esacAC_CHECK_TOOL(RANLIB, ranlib, :)AC_CHECK_TOOL(STRIP, strip, :)ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN], enable_dlopen=yes, enable_dlopen=no)ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],enable_win32_dll=yes, enable_win32_dll=no)AC_ARG_ENABLE(libtool-lock,  [  --disable-libtool-lock  avoid locking (might break parallel builds)])test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes# Some flags need to be propagated to the compiler or linker for good# libtool support.case $host in*-*-irix6*)  # Find out which ABI we are using.  echo '[#]line __oline__ "configure"' > conftest.$ac_ext  if AC_TRY_EVAL(ac_compile); then    case `/usr/bin/file conftest.$ac_objext` in    *32-bit*)      LD="${LD-ld} -32"      ;;    *N32*)      LD="${LD-ld} -n32"      ;;    *64-bit*)      LD="${LD-ld} -64"      ;;    esac  fi  rm -rf conftest*  ;;*-*-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_LANG_SAVE     AC_LANG_C     AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])     AC_LANG_RESTORE])  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  ;;ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],[*-*-cygwin* | *-*-mingw* | *-*-pw32*)  AC_CHECK_TOOL(DLLTOOL, dlltool, false)  AC_CHECK_TOOL(AS, as, false)  AC_CHECK_TOOL(OBJDUMP, objdump, false)  # recent cygwin and mingw systems supply a stub DllMain which the user  # can override, but on older systems we have to supply one  AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,    [AC_TRY_LINK([],      [extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);      DllMain (0, 0, 0);],      [lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])  case $host/$CC in  *-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)    # old mingw systems require "-dll" to link a DLL, while more recent ones    # require "-mdll"    SAVE_CFLAGS="$CFLAGS"    CFLAGS="$CFLAGS -mdll"    AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,      [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])    CFLAGS="$SAVE_CFLAGS" ;;  *-*-cygwin* | *-*-pw32*)    # cygwin systems need to pass --dll to the linker, and not link    # crt.o which will require a WinMain@16 definition.    lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;  esac  ;;  ])esac_LT_AC_LTCONFIG_HACK])# AC_LIBTOOL_HEADER_ASSERT# ------------------------AC_DEFUN([AC_LIBTOOL_HEADER_ASSERT],[AC_CACHE_CHECK([whether $CC supports assert without backlinking],    [lt_cv_func_assert_works],    [case $host in    *-*-solaris*)      if test "$GCC" = yes && test "$with_gnu_ld" != yes; then        case `$CC --version 2>/dev/null` in        [[12]].*) lt_cv_func_assert_works=no ;;        *)        lt_cv_func_assert_works=yes ;;        esac      fi      ;;    esac])if test "x$lt_cv_func_assert_works" = xyes; then  AC_CHECK_HEADERS(assert.h)fi])# AC_LIBTOOL_HEADER_ASSERT# _LT_AC_CHECK_DLFCN# --------------------AC_DEFUN([_LT_AC_CHECK_DLFCN],[AC_CHECK_HEADERS(dlfcn.h)])# _LT_AC_CHECK_DLFCN# AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE# ---------------------------------AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE],[AC_REQUIRE([AC_CANONICAL_HOST])AC_REQUIRE([AC_PROG_NM])AC_REQUIRE([AC_OBJEXT])# 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([lt_cv_sys_global_symbol_pipe], [dnl# 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.symcode='[[BCDEGRST]]'# Regexp to match symbols that can be accessed directly from C.sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'# Transform the above into a raw symbol and a C symbol.symxfrm='\1 \2\3 \3'# Transform an extracted symbol line into a proper C declarationlt_cv_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"# Transform an extracted symbol line into symbol name and symbol addresslt_cv_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"# Define system-specific variables.case $host_os inaix*)  symcode='[[BCDT]]'  ;;cygwin* | mingw* | pw32*)  symcode='[[ABCDGISTW]]'  ;;hpux*) # Its linker distinguishes data from code symbols  lt_cv_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"  lt_cv_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"  ;;irix*)  symcode='[[BCDEGRST]]'  ;;solaris* | sysv5*)  symcode='[[BDT]]'  ;;sysv4)  symcode='[[DFNSTU]]'  ;;esac# Handle CRLF in mingw tool chainopt_cr=case $host_os inmingw*)  opt_cr=`echo 'x\{0,1\}' | tr x '\015'` # option cr in regexp  ;;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  symcode='[[ABCDGISTW]]'fi# Try without a prefix undercore, then with it.for ac_symprfx in "" "_"; do  # Write the raw and C identifiers.lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ 	]]\($symcode$symcode*\)[[ 	]][[ 	]]*\($ac_symprfx\)$sympat$opt_cr$/$symxfrm/p'"  # Check to see that the pipe works correctly.  pipe_works=no  rm -f conftest*  cat > conftest.$ac_ext <<EOF#ifdef __cplusplusextern "C" {#endifchar nm_test_var;void nm_test_func(){}#ifdef __cplusplus}#endifint main(){nm_test_var='a';nm_test_func();return(0);}EOF  if AC_TRY_EVAL(ac_compile); then    # Now try to grab the symbols.    nlist=conftest.nm    if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then      # Try sorting and uniquifying the output.      if sort "$nlist" | uniq > "$nlist"T; then	mv -f "$nlist"T "$nlist"      else	rm -f "$nlist"T      fi      # Make sure that we snagged all the symbols we need.      if egrep ' nm_test_var$' "$nlist" >/dev/null; then	if egrep ' nm_test_func$' "$nlist" >/dev/null; then	  cat <<EOF > conftest.$ac_ext#ifdef __cplusplusextern "C" {#endifEOF	  # Now generate the symbol file.	  eval "$lt_cv_global_symbol_to_cdecl"' < "$nlist" >> conftest.$ac_ext'	  cat <<EOF >> conftest.$ac_ext#if defined (__STDC__) && __STDC__# define lt_ptr void *#else# define lt_ptr char *# define const#endif/* The mapping between symbol names and symbols. */const struct {  const char *name;  lt_ptr address;}lt_preloaded_symbols[[]] ={EOF	  sed "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (lt_ptr) \&\2},/" < "$nlist" >> conftest.$ac_ext	  cat <<\EOF >> conftest.$ac_ext  {0, (lt_ptr) 0}};#ifdef __cplusplus}#endifEOF	  # Now try linking the two files.	  mv conftest.$ac_objext conftstm.$ac_objext	  save_LIBS="$LIBS"	  save_CFLAGS="$CFLAGS"	  LIBS="conftstm.$ac_objext"	  CFLAGS="$CFLAGS$no_builtin_flag"	  if AC_TRY_EVAL(ac_link) && test -s conftest; then	    pipe_works=yes	  fi	  LIBS="$save_LIBS"	  CFLAGS="$save_CFLAGS"	else	  echo "cannot find nm_test_func in $nlist" >&AC_FD_CC	fi      else	echo "cannot find nm_test_var in $nlist" >&AC_FD_CC      fi    else      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AC_FD_CC    fi  else    echo "$progname: failed program was:" >&AC_FD_CC    cat conftest.$ac_ext >&5  fi  rm -f conftest* conftst*  # Do not use the global_symbol_pipe unless it works.  if test "$pipe_works" = yes; then    break  else    lt_cv_sys_global_symbol_pipe=  fidone])global_symbol_pipe="$lt_cv_sys_global_symbol_pipe"if test -z "$lt_cv_sys_global_symbol_pipe"; then  global_symbol_to_cdecl=  global_symbol_to_c_name_address=else  global_symbol_to_cdecl="$lt_cv_global_symbol_to_cdecl"  global_symbol_to_c_name_address="$lt_cv_global_symbol_to_c_name_address"fiif test -z "$global_symbol_pipe$global_symbol_to_cdec$global_symbol_to_c_name_address";then  AC_MSG_RESULT(failed)else  AC_MSG_RESULT(ok)fi]) # AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE# _LT_AC_LIBTOOL_SYS_PATH_SEPARATOR# ---------------------------------AC_DEFUN([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR],[# Find the correct PATH separator.  Usually this is `:', but# DJGPP uses `;' like DOS.if test "X${PATH_SEPARATOR+set}" != Xset; then  UNAME=${UNAME-`uname 2>/dev/null`}  case X$UNAME in    *-DOS) lt_cv_sys_path_separator=';' ;;    *)     lt_cv_sys_path_separator=':' ;;  esac  PATH_SEPARATOR=$lt_cv_sys_path_separatorfi])# _LT_AC_LIBTOOL_SYS_PATH_SEPARATOR# _LT_AC_PROG_ECHO_BACKSLASH# --------------------------# Add some code to the start of the generated configure script which# will find an echo command which doesn't interpret backslashes.AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH],[ifdef([AC_DIVERSION_NOTICE], [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],			      [AC_DIVERT_PUSH(NOTICE)])_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR# Check that we are running under the correct shell.