Roll libxml to 2.9.3

third_party/libxml/src/m4/ltoptions.m4

 # Helper functions for option handling.                    -*- Autoconf -*-
 #
-#   Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
+#   Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
+#   Foundation, Inc.
 #   Written by Gary V. Vaughan, 2004
 #
 # This file is free software; the Free Software Foundation gives
 # unlimited permission to copy and/or distribute it, with or without
 # modifications, as long as this notice is preserved.
 
-# serial 6 ltoptions.m4
+# serial 8 ltoptions.m4
 
 # This is to help aclocal find these macros, as it can't see m4_define.
 AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
 
 
 # _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
 # ------------------------------------------
 m4_define([_LT_MANGLE_OPTION],
 [[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
 
 
 # _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
 # ---------------------------------------
 # Set option OPTION-NAME for macro MACRO-NAME, and if there is a
 # matching handler defined, dispatch to it.  Other OPTION-NAMEs are
 # saved as a flag.
 m4_define([_LT_SET_OPTION],
 [m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
 m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
         _LT_MANGLE_DEFUN([$1], [$2]),
-    [m4_warning([Unknown $1 option `$2'])])[]dnl
+    [m4_warning([Unknown $1 option '$2'])])[]dnl
 ])
 
 
 # _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
 # ------------------------------------------------------------
 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 m4_define([_LT_IF_OPTION],
 [m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
 
 
@@ skipping 25 matching lines @@
   dnl
   dnl Simply set some default values (i.e off) if boolean options were not
   dnl specified:
   _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
   ])
   _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
   ])
   dnl
   dnl If no reference was made to various pairs of opposing options, then
   dnl we run the default mode handler for the pair.  For example, if neither
-  dnl `shared' nor `disable-shared' was passed, we enable building of shared
+  dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
   dnl archives by default:
   _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
   _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
   _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
   _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
-                   [_LT_ENABLE_FAST_INSTALL])
+                   [_LT_ENABLE_FAST_INSTALL])
+  _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
+                   [_LT_WITH_AIX_SONAME([aix])])
   ])
 ])# _LT_SET_OPTIONS
 
 
 ## --------------------------------- ##
 ## Macros to handle LT_INIT options. ##
 ## --------------------------------- ##
 
 # _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
 # -----------------------------------------
@@ skipping 10 matching lines @@
 
 # dlopen
 # ------
 LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
 ])
 
 AU_DEFUN([AC_LIBTOOL_DLOPEN],
 [_LT_SET_OPTION([LT_INIT], [dlopen])
 AC_DIAGNOSE([obsolete],
 [$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `dlopen' option into LT_INIT's first parameter.])
+put the 'dlopen' option into LT_INIT's first parameter.])
 ])
 
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
 
 
 # win32-dll
 # ---------
 # Declare package support for building win32 dll's.
 LT_OPTION_DEFINE([LT_INIT], [win32-dll],
 [enable_win32_dll=yes
 
 case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-cegcc*)
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
   AC_CHECK_TOOL(AS, as, false)
   AC_CHECK_TOOL(DLLTOOL, dlltool, false)
   AC_CHECK_TOOL(OBJDUMP, objdump, false)
   ;;
 esac
 
 test -z "$AS" && AS=as
-_LT_DECL([], [AS],      [0], [Assembler program])dnl
+_LT_DECL([], [AS],      [1], [Assembler program])dnl
 
 test -z "$DLLTOOL" && DLLTOOL=dlltool
-_LT_DECL([], [DLLTOOL], [0], [DLL creation program])dnl
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
 
 test -z "$OBJDUMP" && OBJDUMP=objdump
-_LT_DECL([], [OBJDUMP], [0], [Object dumper program])dnl
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
 ])# win32-dll
 
 AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 _LT_SET_OPTION([LT_INIT], [win32-dll])
 AC_DIAGNOSE([obsolete],
 [$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `win32-dll' option into LT_INIT's first parameter.])
+put the 'win32-dll' option into LT_INIT's first parameter.])
 ])
 
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
 
 
 # _LT_ENABLE_SHARED([DEFAULT])
 # ----------------------------
-# implement the --enable-shared flag, and supports the `shared' and
-# `disable-shared' LT_INIT options.
-# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+# implement the --enable-shared flag, and supports the 'shared' and
+# 'disable-shared' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
 m4_define([_LT_ENABLE_SHARED],
 [m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
 AC_ARG_ENABLE([shared],
     [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
         [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
     [p=${PACKAGE-default}
     case $enableval in
     yes) enable_shared=yes ;;
     no) enable_shared=no ;;
     *)
       enable_shared=no
       # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
       for pkg in $enableval; do
-        IFS="$lt_save_ifs"
+        IFS=$lt_save_ifs
         if test "X$pkg" = "X$p"; then
           enable_shared=yes
         fi
       done
-      IFS="$lt_save_ifs"
+      IFS=$lt_save_ifs
       ;;
     esac],
     [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
 
     _LT_DECL([build_libtool_libs], [enable_shared], [0],
         [Whether or not to build shared libraries])
 ])# _LT_ENABLE_SHARED
 
 LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
 LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
@@ skipping 11 matching lines @@
 AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
 
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AM_ENABLE_SHARED], [])
 dnl AC_DEFUN([AM_DISABLE_SHARED], [])
 
 
 
 # _LT_ENABLE_STATIC([DEFAULT])
 # ----------------------------
-# implement the --enable-static flag, and support the `static' and
-# `disable-static' LT_INIT options.
-# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+# implement the --enable-static flag, and support the 'static' and
+# 'disable-static' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
 m4_define([_LT_ENABLE_STATIC],
 [m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
 AC_ARG_ENABLE([static],
     [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
         [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
     [p=${PACKAGE-default}
     case $enableval in
     yes) enable_static=yes ;;
     no) enable_static=no ;;
     *)
      enable_static=no
       # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
       for pkg in $enableval; do
-        IFS="$lt_save_ifs"
+        IFS=$lt_save_ifs
         if test "X$pkg" = "X$p"; then
           enable_static=yes
         fi
       done
-      IFS="$lt_save_ifs"
+      IFS=$lt_save_ifs
       ;;
     esac],
     [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
 
     _LT_DECL([build_old_libs], [enable_static], [0],
         [Whether or not to build static libraries])
 ])# _LT_ENABLE_STATIC
 
 LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
 LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
@@ skipping 11 matching lines @@
 AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
 
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AM_ENABLE_STATIC], [])
 dnl AC_DEFUN([AM_DISABLE_STATIC], [])
 
 
 
 # _LT_ENABLE_FAST_INSTALL([DEFAULT])
 # ----------------------------------
-# implement the --enable-fast-install flag, and support the `fast-install'
-# and `disable-fast-install' LT_INIT options.
-# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+# implement the --enable-fast-install flag, and support the 'fast-install'
+# and 'disable-fast-install' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
 m4_define([_LT_ENABLE_FAST_INSTALL],
 [m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
 AC_ARG_ENABLE([fast-install],
     [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
     [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
     [p=${PACKAGE-default}
     case $enableval in
     yes) enable_fast_install=yes ;;
     no) enable_fast_install=no ;;
     *)
       enable_fast_install=no
       # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
       for pkg in $enableval; do
-        IFS="$lt_save_ifs"
+        IFS=$lt_save_ifs
         if test "X$pkg" = "X$p"; then
           enable_fast_install=yes
         fi
       done
-      IFS="$lt_save_ifs"
+      IFS=$lt_save_ifs
       ;;
     esac],
     [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
 
 _LT_DECL([fast_install], [enable_fast_install], [0],
          [Whether or not to optimize for fast installation])dnl
 ])# _LT_ENABLE_FAST_INSTALL
 
 LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
 LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
 
 # Old names:
 AU_DEFUN([AC_ENABLE_FAST_INSTALL],
 [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
 AC_DIAGNOSE([obsolete],
 [$0: Remove this warning and the call to _LT_SET_OPTION when you put
-the `fast-install' option into LT_INIT's first parameter.])
+the 'fast-install' option into LT_INIT's first parameter.])
 ])
 
 AU_DEFUN([AC_DISABLE_FAST_INSTALL],
 [_LT_SET_OPTION([LT_INIT], [disable-fast-install])
 AC_DIAGNOSE([obsolete],
 [$0: Remove this warning and the call to _LT_SET_OPTION when you put
-the `disable-fast-install' option into LT_INIT's first parameter.])
+the 'disable-fast-install' option into LT_INIT's first parameter.])
 ])
 
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
 dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
 
 
+# _LT_WITH_AIX_SONAME([DEFAULT])
+# ----------------------------------
+# implement the --with-aix-soname flag, and support the `aix-soname=aix'
+# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
+# is either `aix', `both' or `svr4'.  If omitted, it defaults to `aix'.
+m4_define([_LT_WITH_AIX_SONAME],
+[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
+shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[[5-9]]*,yes)
+  AC_MSG_CHECKING([which variant of shared library versioning to provide])
+  AC_ARG_WITH([aix-soname],
+    [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+      [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
+    [case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      AC_MSG_ERROR([Unknown argument to --with-aix-soname])
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname],
+    [AC_CACHE_VAL([lt_cv_with_aix_soname],
+      [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
+    with_aix_soname=$lt_cv_with_aix_soname])
+  AC_MSG_RESULT([$with_aix_soname])
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+_LT_DECL([], [shared_archive_member_spec], [0],
+    [Shared archive member basename, for filename based shared library versioning on AIX])dnl
+])# _LT_WITH_AIX_SONAME
+
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
+
+
 # _LT_WITH_PIC([MODE])
 # --------------------
-# implement the --with-pic flag, and support the `pic-only' and `no-pic'
+# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
 # LT_INIT options.
-# MODE is either `yes' or `no'.  If omitted, it defaults to `both'.
+# MODE is either 'yes' or 'no'.  If omitted, it defaults to 'both'.
 m4_define([_LT_WITH_PIC],
 [AC_ARG_WITH([pic],
-    [AS_HELP_STRING([--with-pic],
+    [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
         [try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
-    [pic_mode="$withval"],
-    [pic_mode=default])
-
-test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
+    [lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+        IFS=$lt_save_ifs
+        if test "X$lt_pkg" = "X$lt_p"; then
+          pic_mode=yes
+        fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [pic_mode=m4_default([$1], [default])])
 
 _LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
 ])# _LT_WITH_PIC
 
 LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
 LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
 
 # Old name:
 AU_DEFUN([AC_LIBTOOL_PICMODE],
 [_LT_SET_OPTION([LT_INIT], [pic-only])
 AC_DIAGNOSE([obsolete],
 [$0: Remove this warning and the call to _LT_SET_OPTION when you
-put the `pic-only' option into LT_INIT's first parameter.])
+put the 'pic-only' option into LT_INIT's first parameter.])
 ])
 
 dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
 
 ## ----------------- ##
 ## LTDL_INIT Options ##
 ## ----------------- ##
 
 m4_define([_LTDL_MODE], [])
 LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
                  [m4_define([_LTDL_MODE], [nonrecursive])])
 LT_OPTION_DEFINE([LTDL_INIT], [recursive],
                  [m4_define([_LTDL_MODE], [recursive])])
 LT_OPTION_DEFINE([LTDL_INIT], [subproject],
                  [m4_define([_LTDL_MODE], [subproject])])
 
 m4_define([_LTDL_TYPE], [])
 LT_OPTION_DEFINE([LTDL_INIT], [installable],
                  [m4_define([_LTDL_TYPE], [installable])])
 LT_OPTION_DEFINE([LTDL_INIT], [convenience],
                  [m4_define([_LTDL_TYPE], [convenience])])