Annotation of sql/pgsql/libltdl/m4/ltdl.m4, revision 1.1
1.1 ! moko 1: # ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
! 2: #
! 3: # Copyright (C) 1999-2006, 2007, 2008, 2011 Free Software Foundation, Inc.
! 4: # Written by Thomas Tanner, 1999
! 5: #
! 6: # This file is free software; the Free Software Foundation gives
! 7: # unlimited permission to copy and/or distribute it, with or without
! 8: # modifications, as long as this notice is preserved.
! 9:
! 10: # serial 18 LTDL_INIT
! 11:
! 12: # LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
! 13: # ------------------------------------------
! 14: # DIRECTORY contains the libltdl sources. It is okay to call this
! 15: # function multiple times, as long as the same DIRECTORY is always given.
! 16: AC_DEFUN([LT_CONFIG_LTDL_DIR],
! 17: [AC_BEFORE([$0], [LTDL_INIT])
! 18: _$0($*)
! 19: ])# LT_CONFIG_LTDL_DIR
! 20:
! 21: # We break this out into a separate macro, so that we can call it safely
! 22: # internally without being caught accidentally by the sed scan in libtoolize.
! 23: m4_defun([_LT_CONFIG_LTDL_DIR],
! 24: [dnl remove trailing slashes
! 25: m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
! 26: m4_case(_LTDL_DIR,
! 27: [], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply `.'
! 28: m4_if(_ARG_DIR, [.],
! 29: [],
! 30: [m4_define([_LTDL_DIR], _ARG_DIR)
! 31: _LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
! 32: [m4_if(_ARG_DIR, _LTDL_DIR,
! 33: [],
! 34: [m4_fatal([multiple libltdl directories: `]_LTDL_DIR[', `]_ARG_DIR['])])])
! 35: m4_popdef([_ARG_DIR])
! 36: ])# _LT_CONFIG_LTDL_DIR
! 37:
! 38: # Initialise:
! 39: m4_define([_LTDL_DIR], [])
! 40:
! 41:
! 42: # _LT_BUILD_PREFIX
! 43: # ----------------
! 44: # If Autoconf is new enough, expand to `${top_build_prefix}', otherwise
! 45: # to `${top_builddir}/'.
! 46: m4_define([_LT_BUILD_PREFIX],
! 47: [m4_ifdef([AC_AUTOCONF_VERSION],
! 48: [m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
! 49: [-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
! 50: [${top_build_prefix}],
! 51: [${top_builddir}/])],
! 52: [${top_build_prefix}])],
! 53: [${top_builddir}/])[]dnl
! 54: ])
! 55:
! 56:
! 57: # LTDL_CONVENIENCE
! 58: # ----------------
! 59: # sets LIBLTDL to the link flags for the libltdl convenience library and
! 60: # LTDLINCL to the include flags for the libltdl header and adds
! 61: # --enable-ltdl-convenience to the configure arguments. Note that
! 62: # AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
! 63: # '${top_build_prefix}' if available, otherwise with '${top_builddir}/',
! 64: # and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
! 65: # quotes!). If your package is not flat and you're not using automake,
! 66: # define top_build_prefix, top_builddir, and top_srcdir appropriately
! 67: # in your Makefiles.
! 68: AC_DEFUN([LTDL_CONVENIENCE],
! 69: [AC_BEFORE([$0], [LTDL_INIT])dnl
! 70: dnl Although the argument is deprecated and no longer documented,
! 71: dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
! 72: dnl here make sure it is the same as any other declaration of libltdl's
! 73: dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
! 74: dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
! 75: m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
! 76: _$0()
! 77: ])# LTDL_CONVENIENCE
! 78:
! 79: # AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
! 80: # now we have LT_CONFIG_LTDL_DIR:
! 81: AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
! 82: [_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
! 83: _LTDL_CONVENIENCE])
! 84:
! 85: dnl aclocal-1.4 backwards compatibility:
! 86: dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
! 87:
! 88:
! 89: # _LTDL_CONVENIENCE
! 90: # -----------------
! 91: # Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
! 92: m4_defun([_LTDL_CONVENIENCE],
! 93: [case $enable_ltdl_convenience in
! 94: no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
! 95: "") enable_ltdl_convenience=yes
! 96: ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
! 97: esac
! 98: LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
! 99: LTDLDEPS=$LIBLTDL
! 100: LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
! 101:
! 102: AC_SUBST([LIBLTDL])
! 103: AC_SUBST([LTDLDEPS])
! 104: AC_SUBST([LTDLINCL])
! 105:
! 106: # For backwards non-gettext consistent compatibility...
! 107: INCLTDL="$LTDLINCL"
! 108: AC_SUBST([INCLTDL])
! 109: ])# _LTDL_CONVENIENCE
! 110:
! 111:
! 112: # LTDL_INSTALLABLE
! 113: # ----------------
! 114: # sets LIBLTDL to the link flags for the libltdl installable library
! 115: # and LTDLINCL to the include flags for the libltdl header and adds
! 116: # --enable-ltdl-install to the configure arguments. Note that
! 117: # AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
! 118: # is not found, LIBLTDL will be prefixed with '${top_build_prefix}' if
! 119: # available, otherwise with '${top_builddir}/', and LTDLINCL will be
! 120: # prefixed with '${top_srcdir}/' (note the single quotes!). If your
! 121: # package is not flat and you're not using automake, define top_build_prefix,
! 122: # top_builddir, and top_srcdir appropriately in your Makefiles.
! 123: # In the future, this macro may have to be called after LT_INIT.
! 124: AC_DEFUN([LTDL_INSTALLABLE],
! 125: [AC_BEFORE([$0], [LTDL_INIT])dnl
! 126: dnl Although the argument is deprecated and no longer documented,
! 127: dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
! 128: dnl here make sure it is the same as any other declaration of libltdl's
! 129: dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
! 130: dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
! 131: m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
! 132: _$0()
! 133: ])# LTDL_INSTALLABLE
! 134:
! 135: # AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
! 136: # now we have LT_CONFIG_LTDL_DIR:
! 137: AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
! 138: [_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
! 139: _LTDL_INSTALLABLE])
! 140:
! 141: dnl aclocal-1.4 backwards compatibility:
! 142: dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
! 143:
! 144:
! 145: # _LTDL_INSTALLABLE
! 146: # -----------------
! 147: # Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
! 148: m4_defun([_LTDL_INSTALLABLE],
! 149: [if test -f $prefix/lib/libltdl.la; then
! 150: lt_save_LDFLAGS="$LDFLAGS"
! 151: LDFLAGS="-L$prefix/lib $LDFLAGS"
! 152: AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
! 153: LDFLAGS="$lt_save_LDFLAGS"
! 154: if test x"${lt_lib_ltdl-no}" = xyes; then
! 155: if test x"$enable_ltdl_install" != xyes; then
! 156: # Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
! 157: AC_MSG_WARN([not overwriting libltdl at $prefix, force with `--enable-ltdl-install'])
! 158: enable_ltdl_install=no
! 159: fi
! 160: elif test x"$enable_ltdl_install" = xno; then
! 161: AC_MSG_WARN([libltdl not installed, but installation disabled])
! 162: fi
! 163: fi
! 164:
! 165: # If configure.ac declared an installable ltdl, and the user didn't override
! 166: # with --disable-ltdl-install, we will install the shipped libltdl.
! 167: case $enable_ltdl_install in
! 168: no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
! 169: LIBLTDL="-lltdl"
! 170: LTDLDEPS=
! 171: LTDLINCL=
! 172: ;;
! 173: *) enable_ltdl_install=yes
! 174: ac_configure_args="$ac_configure_args --enable-ltdl-install"
! 175: LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
! 176: LTDLDEPS=$LIBLTDL
! 177: LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
! 178: ;;
! 179: esac
! 180:
! 181: AC_SUBST([LIBLTDL])
! 182: AC_SUBST([LTDLDEPS])
! 183: AC_SUBST([LTDLINCL])
! 184:
! 185: # For backwards non-gettext consistent compatibility...
! 186: INCLTDL="$LTDLINCL"
! 187: AC_SUBST([INCLTDL])
! 188: ])# LTDL_INSTALLABLE
! 189:
! 190:
! 191: # _LTDL_MODE_DISPATCH
! 192: # -------------------
! 193: m4_define([_LTDL_MODE_DISPATCH],
! 194: [dnl If _LTDL_DIR is `.', then we are configuring libltdl itself:
! 195: m4_if(_LTDL_DIR, [],
! 196: [],
! 197: dnl if _LTDL_MODE was not set already, the default value is `subproject':
! 198: [m4_case(m4_default(_LTDL_MODE, [subproject]),
! 199: [subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
! 200: _LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"])],
! 201: [nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"; lt_libobj_prefix="$lt_ltdl_dir/"])],
! 202: [recursive], [],
! 203: [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
! 204: dnl Be careful not to expand twice:
! 205: m4_define([$0], [])
! 206: ])# _LTDL_MODE_DISPATCH
! 207:
! 208:
! 209: # _LT_LIBOBJ(MODULE_NAME)
! 210: # -----------------------
! 211: # Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
! 212: # of into LIBOBJS.
! 213: AC_DEFUN([_LT_LIBOBJ], [
! 214: m4_pattern_allow([^_LT_LIBOBJS$])
! 215: _LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
! 216: ])# _LT_LIBOBJS
! 217:
! 218:
! 219: # LTDL_INIT([OPTIONS])
! 220: # --------------------
! 221: # Clients of libltdl can use this macro to allow the installer to
! 222: # choose between a shipped copy of the ltdl sources or a preinstalled
! 223: # version of the library. If the shipped ltdl sources are not in a
! 224: # subdirectory named libltdl, the directory name must be given by
! 225: # LT_CONFIG_LTDL_DIR.
! 226: AC_DEFUN([LTDL_INIT],
! 227: [dnl Parse OPTIONS
! 228: _LT_SET_OPTIONS([$0], [$1])
! 229:
! 230: dnl We need to keep our own list of libobjs separate from our parent project,
! 231: dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
! 232: dnl we look for our own LIBOBJs.
! 233: m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
! 234: m4_pushdef([AC_LIBSOURCES])
! 235:
! 236: dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
! 237: m4_if(_LTDL_MODE, [],
! 238: [m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
! 239: m4_if([-1], [m4_bregexp(_LTDL_MODE, [\(subproject\|\(non\)?recursive\)])],
! 240: [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
! 241:
! 242: AC_ARG_WITH([included_ltdl],
! 243: [AS_HELP_STRING([--with-included-ltdl],
! 244: [use the GNU ltdl sources included here])])
! 245:
! 246: if test "x$with_included_ltdl" != xyes; then
! 247: # We are not being forced to use the included libltdl sources, so
! 248: # decide whether there is a useful installed version we can use.
! 249: AC_CHECK_HEADER([ltdl.h],
! 250: [AC_CHECK_DECL([lt_dlinterface_register],
! 251: [AC_CHECK_LIB([ltdl], [lt_dladvise_preload],
! 252: [with_included_ltdl=no],
! 253: [with_included_ltdl=yes])],
! 254: [with_included_ltdl=yes],
! 255: [AC_INCLUDES_DEFAULT
! 256: #include <ltdl.h>])],
! 257: [with_included_ltdl=yes],
! 258: [AC_INCLUDES_DEFAULT]
! 259: )
! 260: fi
! 261:
! 262: dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
! 263: dnl was called yet, then for old times' sake, we assume libltdl is in an
! 264: dnl eponymous directory:
! 265: AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
! 266:
! 267: AC_ARG_WITH([ltdl_include],
! 268: [AS_HELP_STRING([--with-ltdl-include=DIR],
! 269: [use the ltdl headers installed in DIR])])
! 270:
! 271: if test -n "$with_ltdl_include"; then
! 272: if test -f "$with_ltdl_include/ltdl.h"; then :
! 273: else
! 274: AC_MSG_ERROR([invalid ltdl include directory: `$with_ltdl_include'])
! 275: fi
! 276: else
! 277: with_ltdl_include=no
! 278: fi
! 279:
! 280: AC_ARG_WITH([ltdl_lib],
! 281: [AS_HELP_STRING([--with-ltdl-lib=DIR],
! 282: [use the libltdl.la installed in DIR])])
! 283:
! 284: if test -n "$with_ltdl_lib"; then
! 285: if test -f "$with_ltdl_lib/libltdl.la"; then :
! 286: else
! 287: AC_MSG_ERROR([invalid ltdl library directory: `$with_ltdl_lib'])
! 288: fi
! 289: else
! 290: with_ltdl_lib=no
! 291: fi
! 292:
! 293: case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
! 294: ,yes,no,no,)
! 295: m4_case(m4_default(_LTDL_TYPE, [convenience]),
! 296: [convenience], [_LTDL_CONVENIENCE],
! 297: [installable], [_LTDL_INSTALLABLE],
! 298: [m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
! 299: ;;
! 300: ,no,no,no,)
! 301: # If the included ltdl is not to be used, then use the
! 302: # preinstalled libltdl we found.
! 303: AC_DEFINE([HAVE_LTDL], [1],
! 304: [Define this if a modern libltdl is already installed])
! 305: LIBLTDL=-lltdl
! 306: LTDLDEPS=
! 307: LTDLINCL=
! 308: ;;
! 309: ,no*,no,*)
! 310: AC_MSG_ERROR([`--with-ltdl-include' and `--with-ltdl-lib' options must be used together])
! 311: ;;
! 312: *) with_included_ltdl=no
! 313: LIBLTDL="-L$with_ltdl_lib -lltdl"
! 314: LTDLDEPS=
! 315: LTDLINCL="-I$with_ltdl_include"
! 316: ;;
! 317: esac
! 318: INCLTDL="$LTDLINCL"
! 319:
! 320: # Report our decision...
! 321: AC_MSG_CHECKING([where to find libltdl headers])
! 322: AC_MSG_RESULT([$LTDLINCL])
! 323: AC_MSG_CHECKING([where to find libltdl library])
! 324: AC_MSG_RESULT([$LIBLTDL])
! 325:
! 326: _LTDL_SETUP
! 327:
! 328: dnl restore autoconf definition.
! 329: m4_popdef([AC_LIBOBJ])
! 330: m4_popdef([AC_LIBSOURCES])
! 331:
! 332: AC_CONFIG_COMMANDS_PRE([
! 333: _ltdl_libobjs=
! 334: _ltdl_ltlibobjs=
! 335: if test -n "$_LT_LIBOBJS"; then
! 336: # Remove the extension.
! 337: _lt_sed_drop_objext='s/\.o$//;s/\.obj$//'
! 338: for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
! 339: _ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
! 340: _ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
! 341: done
! 342: fi
! 343: AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
! 344: AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
! 345: ])
! 346:
! 347: # Only expand once:
! 348: m4_define([LTDL_INIT])
! 349: ])# LTDL_INIT
! 350:
! 351: # Old names:
! 352: AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
! 353: AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
! 354: AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
! 355: dnl aclocal-1.4 backwards compatibility:
! 356: dnl AC_DEFUN([AC_LIB_LTDL], [])
! 357: dnl AC_DEFUN([AC_WITH_LTDL], [])
! 358: dnl AC_DEFUN([LT_WITH_LTDL], [])
! 359:
! 360:
! 361: # _LTDL_SETUP
! 362: # -----------
! 363: # Perform all the checks necessary for compilation of the ltdl objects
! 364: # -- including compiler checks and header checks. This is a public
! 365: # interface mainly for the benefit of libltdl's own configure.ac, most
! 366: # other users should call LTDL_INIT instead.
! 367: AC_DEFUN([_LTDL_SETUP],
! 368: [AC_REQUIRE([AC_PROG_CC])dnl
! 369: AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
! 370: AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
! 371: AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
! 372: AC_REQUIRE([LT_LIB_DLLOAD])dnl
! 373: AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
! 374: AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
! 375: AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
! 376: AC_REQUIRE([gl_FUNC_ARGZ])dnl
! 377:
! 378: m4_require([_LT_CHECK_OBJDIR])dnl
! 379: m4_require([_LT_HEADER_DLFCN])dnl
! 380: m4_require([_LT_CHECK_DLPREOPEN])dnl
! 381: m4_require([_LT_DECL_SED])dnl
! 382:
! 383: dnl Don't require this, or it will be expanded earlier than the code
! 384: dnl that sets the variables it relies on:
! 385: _LT_ENABLE_INSTALL
! 386:
! 387: dnl _LTDL_MODE specific code must be called at least once:
! 388: _LTDL_MODE_DISPATCH
! 389:
! 390: # In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
! 391: # the user used. This is so that ltdl.h can pick up the parent projects
! 392: # config.h file, The first file in AC_CONFIG_HEADERS must contain the
! 393: # definitions required by ltdl.c.
! 394: # FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
! 395: AC_CONFIG_COMMANDS_PRE([dnl
! 396: m4_pattern_allow([^LT_CONFIG_H$])dnl
! 397: m4_ifset([AH_HEADER],
! 398: [LT_CONFIG_H=AH_HEADER],
! 399: [m4_ifset([AC_LIST_HEADERS],
! 400: [LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ ]]*,,;s,[[ :]].*$,,'`],
! 401: [])])])
! 402: AC_SUBST([LT_CONFIG_H])
! 403:
! 404: AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
! 405: [], [], [AC_INCLUDES_DEFAULT])
! 406:
! 407: AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
! 408: AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
! 409:
! 410: m4_pattern_allow([LT_LIBEXT])dnl
! 411: AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension])
! 412:
! 413: name=
! 414: eval "lt_libprefix=\"$libname_spec\""
! 415: m4_pattern_allow([LT_LIBPREFIX])dnl
! 416: AC_DEFINE_UNQUOTED([LT_LIBPREFIX],["$lt_libprefix"],[The archive prefix])
! 417:
! 418: name=ltdl
! 419: eval "LTDLOPEN=\"$libname_spec\""
! 420: AC_SUBST([LTDLOPEN])
! 421: ])# _LTDL_SETUP
! 422:
! 423:
! 424: # _LT_ENABLE_INSTALL
! 425: # ------------------
! 426: m4_define([_LT_ENABLE_INSTALL],
! 427: [AC_ARG_ENABLE([ltdl-install],
! 428: [AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
! 429:
! 430: case ,${enable_ltdl_install},${enable_ltdl_convenience} in
! 431: *yes*) ;;
! 432: *) enable_ltdl_convenience=yes ;;
! 433: esac
! 434:
! 435: m4_ifdef([AM_CONDITIONAL],
! 436: [AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
! 437: AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)])
! 438: ])# _LT_ENABLE_INSTALL
! 439:
! 440:
! 441: # LT_SYS_DLOPEN_DEPLIBS
! 442: # ---------------------
! 443: AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
! 444: [AC_REQUIRE([AC_CANONICAL_HOST])dnl
! 445: AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
! 446: [lt_cv_sys_dlopen_deplibs],
! 447: [# PORTME does your system automatically load deplibs for dlopen?
! 448: # or its logical equivalent (e.g. shl_load for HP-UX < 11)
! 449: # For now, we just catch OSes we know something about -- in the
! 450: # future, we'll try test this programmatically.
! 451: lt_cv_sys_dlopen_deplibs=unknown
! 452: case $host_os in
! 453: aix3*|aix4.1.*|aix4.2.*)
! 454: # Unknown whether this is true for these versions of AIX, but
! 455: # we want this `case' here to explicitly catch those versions.
! 456: lt_cv_sys_dlopen_deplibs=unknown
! 457: ;;
! 458: aix[[4-9]]*)
! 459: lt_cv_sys_dlopen_deplibs=yes
! 460: ;;
! 461: amigaos*)
! 462: case $host_cpu in
! 463: powerpc)
! 464: lt_cv_sys_dlopen_deplibs=no
! 465: ;;
! 466: esac
! 467: ;;
! 468: darwin*)
! 469: # Assuming the user has installed a libdl from somewhere, this is true
! 470: # If you are looking for one http://www.opendarwin.org/projects/dlcompat
! 471: lt_cv_sys_dlopen_deplibs=yes
! 472: ;;
! 473: freebsd* | dragonfly*)
! 474: lt_cv_sys_dlopen_deplibs=yes
! 475: ;;
! 476: gnu* | linux* | k*bsd*-gnu | kopensolaris*-gnu)
! 477: # GNU and its variants, using gnu ld.so (Glibc)
! 478: lt_cv_sys_dlopen_deplibs=yes
! 479: ;;
! 480: hpux10*|hpux11*)
! 481: lt_cv_sys_dlopen_deplibs=yes
! 482: ;;
! 483: interix*)
! 484: lt_cv_sys_dlopen_deplibs=yes
! 485: ;;
! 486: irix[[12345]]*|irix6.[[01]]*)
! 487: # Catch all versions of IRIX before 6.2, and indicate that we don't
! 488: # know how it worked for any of those versions.
! 489: lt_cv_sys_dlopen_deplibs=unknown
! 490: ;;
! 491: irix*)
! 492: # The case above catches anything before 6.2, and it's known that
! 493: # at 6.2 and later dlopen does load deplibs.
! 494: lt_cv_sys_dlopen_deplibs=yes
! 495: ;;
! 496: netbsd*)
! 497: lt_cv_sys_dlopen_deplibs=yes
! 498: ;;
! 499: openbsd*)
! 500: lt_cv_sys_dlopen_deplibs=yes
! 501: ;;
! 502: osf[[1234]]*)
! 503: # dlopen did load deplibs (at least at 4.x), but until the 5.x series,
! 504: # it did *not* use an RPATH in a shared library to find objects the
! 505: # library depends on, so we explicitly say `no'.
! 506: lt_cv_sys_dlopen_deplibs=no
! 507: ;;
! 508: osf5.0|osf5.0a|osf5.1)
! 509: # dlopen *does* load deplibs and with the right loader patch applied
! 510: # it even uses RPATH in a shared library to search for shared objects
! 511: # that the library depends on, but there's no easy way to know if that
! 512: # patch is installed. Since this is the case, all we can really
! 513: # say is unknown -- it depends on the patch being installed. If
! 514: # it is, this changes to `yes'. Without it, it would be `no'.
! 515: lt_cv_sys_dlopen_deplibs=unknown
! 516: ;;
! 517: osf*)
! 518: # the two cases above should catch all versions of osf <= 5.1. Read
! 519: # the comments above for what we know about them.
! 520: # At > 5.1, deplibs are loaded *and* any RPATH in a shared library
! 521: # is used to find them so we can finally say `yes'.
! 522: lt_cv_sys_dlopen_deplibs=yes
! 523: ;;
! 524: qnx*)
! 525: lt_cv_sys_dlopen_deplibs=yes
! 526: ;;
! 527: solaris*)
! 528: lt_cv_sys_dlopen_deplibs=yes
! 529: ;;
! 530: sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
! 531: libltdl_cv_sys_dlopen_deplibs=yes
! 532: ;;
! 533: esac
! 534: ])
! 535: if test "$lt_cv_sys_dlopen_deplibs" != yes; then
! 536: AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
! 537: [Define if the OS needs help to load dependent libraries for dlopen().])
! 538: fi
! 539: ])# LT_SYS_DLOPEN_DEPLIBS
! 540:
! 541: # Old name:
! 542: AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
! 543: dnl aclocal-1.4 backwards compatibility:
! 544: dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
! 545:
! 546:
! 547: # LT_SYS_MODULE_EXT
! 548: # -----------------
! 549: AC_DEFUN([LT_SYS_MODULE_EXT],
! 550: [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
! 551: AC_CACHE_CHECK([which extension is used for runtime loadable modules],
! 552: [libltdl_cv_shlibext],
! 553: [
! 554: module=yes
! 555: eval libltdl_cv_shlibext=$shrext_cmds
! 556: module=no
! 557: eval libltdl_cv_shrext=$shrext_cmds
! 558: ])
! 559: if test -n "$libltdl_cv_shlibext"; then
! 560: m4_pattern_allow([LT_MODULE_EXT])dnl
! 561: AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
! 562: [Define to the extension used for runtime loadable modules, say, ".so".])
! 563: fi
! 564: if test "$libltdl_cv_shrext" != "$libltdl_cv_shlibext"; then
! 565: m4_pattern_allow([LT_SHARED_EXT])dnl
! 566: AC_DEFINE_UNQUOTED([LT_SHARED_EXT], ["$libltdl_cv_shrext"],
! 567: [Define to the shared library suffix, say, ".dylib".])
! 568: fi
! 569: ])# LT_SYS_MODULE_EXT
! 570:
! 571: # Old name:
! 572: AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
! 573: dnl aclocal-1.4 backwards compatibility:
! 574: dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
! 575:
! 576:
! 577: # LT_SYS_MODULE_PATH
! 578: # ------------------
! 579: AC_DEFUN([LT_SYS_MODULE_PATH],
! 580: [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
! 581: AC_CACHE_CHECK([which variable specifies run-time module search path],
! 582: [lt_cv_module_path_var], [lt_cv_module_path_var="$shlibpath_var"])
! 583: if test -n "$lt_cv_module_path_var"; then
! 584: m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
! 585: AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
! 586: [Define to the name of the environment variable that determines the run-time module search path.])
! 587: fi
! 588: ])# LT_SYS_MODULE_PATH
! 589:
! 590: # Old name:
! 591: AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
! 592: dnl aclocal-1.4 backwards compatibility:
! 593: dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
! 594:
! 595:
! 596: # LT_SYS_DLSEARCH_PATH
! 597: # --------------------
! 598: AC_DEFUN([LT_SYS_DLSEARCH_PATH],
! 599: [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
! 600: AC_CACHE_CHECK([for the default library search path],
! 601: [lt_cv_sys_dlsearch_path],
! 602: [lt_cv_sys_dlsearch_path="$sys_lib_dlsearch_path_spec"])
! 603: if test -n "$lt_cv_sys_dlsearch_path"; then
! 604: sys_dlsearch_path=
! 605: for dir in $lt_cv_sys_dlsearch_path; do
! 606: if test -z "$sys_dlsearch_path"; then
! 607: sys_dlsearch_path="$dir"
! 608: else
! 609: sys_dlsearch_path="$sys_dlsearch_path$PATH_SEPARATOR$dir"
! 610: fi
! 611: done
! 612: m4_pattern_allow([LT_DLSEARCH_PATH])dnl
! 613: AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
! 614: [Define to the system default library search path.])
! 615: fi
! 616: ])# LT_SYS_DLSEARCH_PATH
! 617:
! 618: # Old name:
! 619: AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
! 620: dnl aclocal-1.4 backwards compatibility:
! 621: dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
! 622:
! 623:
! 624: # _LT_CHECK_DLPREOPEN
! 625: # -------------------
! 626: m4_defun([_LT_CHECK_DLPREOPEN],
! 627: [m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
! 628: AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
! 629: [libltdl_cv_preloaded_symbols],
! 630: [if test -n "$lt_cv_sys_global_symbol_pipe"; then
! 631: libltdl_cv_preloaded_symbols=yes
! 632: else
! 633: libltdl_cv_preloaded_symbols=no
! 634: fi
! 635: ])
! 636: if test x"$libltdl_cv_preloaded_symbols" = xyes; then
! 637: AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
! 638: [Define if libtool can extract symbol lists from object files.])
! 639: fi
! 640: ])# _LT_CHECK_DLPREOPEN
! 641:
! 642:
! 643: # LT_LIB_DLLOAD
! 644: # -------------
! 645: AC_DEFUN([LT_LIB_DLLOAD],
! 646: [m4_pattern_allow([^LT_DLLOADERS$])
! 647: LT_DLLOADERS=
! 648: AC_SUBST([LT_DLLOADERS])
! 649:
! 650: AC_LANG_PUSH([C])
! 651:
! 652: LIBADD_DLOPEN=
! 653: AC_SEARCH_LIBS([dlopen], [dl],
! 654: [AC_DEFINE([HAVE_LIBDL], [1],
! 655: [Define if you have the libdl library or equivalent.])
! 656: if test "$ac_cv_search_dlopen" != "none required" ; then
! 657: LIBADD_DLOPEN="-ldl"
! 658: fi
! 659: libltdl_cv_lib_dl_dlopen="yes"
! 660: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
! 661: [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
! 662: # include <dlfcn.h>
! 663: #endif
! 664: ]], [[dlopen(0, 0);]])],
! 665: [AC_DEFINE([HAVE_LIBDL], [1],
! 666: [Define if you have the libdl library or equivalent.])
! 667: libltdl_cv_func_dlopen="yes"
! 668: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
! 669: [AC_CHECK_LIB([svld], [dlopen],
! 670: [AC_DEFINE([HAVE_LIBDL], [1],
! 671: [Define if you have the libdl library or equivalent.])
! 672: LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
! 673: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
! 674: if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
! 675: then
! 676: lt_save_LIBS="$LIBS"
! 677: LIBS="$LIBS $LIBADD_DLOPEN"
! 678: AC_CHECK_FUNCS([dlerror])
! 679: LIBS="$lt_save_LIBS"
! 680: fi
! 681: AC_SUBST([LIBADD_DLOPEN])
! 682:
! 683: LIBADD_SHL_LOAD=
! 684: AC_CHECK_FUNC([shl_load],
! 685: [AC_DEFINE([HAVE_SHL_LOAD], [1],
! 686: [Define if you have the shl_load function.])
! 687: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
! 688: [AC_CHECK_LIB([dld], [shl_load],
! 689: [AC_DEFINE([HAVE_SHL_LOAD], [1],
! 690: [Define if you have the shl_load function.])
! 691: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
! 692: LIBADD_SHL_LOAD="-ldld"])])
! 693: AC_SUBST([LIBADD_SHL_LOAD])
! 694:
! 695: case $host_os in
! 696: darwin[[1567]].*)
! 697: # We only want this for pre-Mac OS X 10.4.
! 698: AC_CHECK_FUNC([_dyld_func_lookup],
! 699: [AC_DEFINE([HAVE_DYLD], [1],
! 700: [Define if you have the _dyld_func_lookup function.])
! 701: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
! 702: ;;
! 703: beos*)
! 704: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
! 705: ;;
! 706: cygwin* | mingw* | os2* | pw32*)
! 707: AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
! 708: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
! 709: ;;
! 710: esac
! 711:
! 712: AC_CHECK_LIB([dld], [dld_link],
! 713: [AC_DEFINE([HAVE_DLD], [1],
! 714: [Define if you have the GNU dld library.])
! 715: LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
! 716: AC_SUBST([LIBADD_DLD_LINK])
! 717:
! 718: m4_pattern_allow([^LT_DLPREOPEN$])
! 719: LT_DLPREOPEN=
! 720: if test -n "$LT_DLLOADERS"
! 721: then
! 722: for lt_loader in $LT_DLLOADERS; do
! 723: LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
! 724: done
! 725: AC_DEFINE([HAVE_LIBDLLOADER], [1],
! 726: [Define if libdlloader will be built on this platform])
! 727: fi
! 728: AC_SUBST([LT_DLPREOPEN])
! 729:
! 730: dnl This isn't used anymore, but set it for backwards compatibility
! 731: LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
! 732: AC_SUBST([LIBADD_DL])
! 733:
! 734: AC_LANG_POP
! 735: ])# LT_LIB_DLLOAD
! 736:
! 737: # Old name:
! 738: AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
! 739: dnl aclocal-1.4 backwards compatibility:
! 740: dnl AC_DEFUN([AC_LTDL_DLLIB], [])
! 741:
! 742:
! 743: # LT_SYS_SYMBOL_USCORE
! 744: # --------------------
! 745: # does the compiler prefix global symbols with an underscore?
! 746: AC_DEFUN([LT_SYS_SYMBOL_USCORE],
! 747: [m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
! 748: AC_CACHE_CHECK([for _ prefix in compiled symbols],
! 749: [lt_cv_sys_symbol_underscore],
! 750: [lt_cv_sys_symbol_underscore=no
! 751: cat > conftest.$ac_ext <<_LT_EOF
! 752: void nm_test_func(){}
! 753: int main(){nm_test_func;return 0;}
! 754: _LT_EOF
! 755: if AC_TRY_EVAL(ac_compile); then
! 756: # Now try to grab the symbols.
! 757: ac_nlist=conftest.nm
! 758: if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
! 759: # See whether the symbols have a leading underscore.
! 760: if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
! 761: lt_cv_sys_symbol_underscore=yes
! 762: else
! 763: if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
! 764: :
! 765: else
! 766: echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
! 767: fi
! 768: fi
! 769: else
! 770: echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
! 771: fi
! 772: else
! 773: echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
! 774: cat conftest.c >&AS_MESSAGE_LOG_FD
! 775: fi
! 776: rm -rf conftest*
! 777: ])
! 778: sys_symbol_underscore=$lt_cv_sys_symbol_underscore
! 779: AC_SUBST([sys_symbol_underscore])
! 780: ])# LT_SYS_SYMBOL_USCORE
! 781:
! 782: # Old name:
! 783: AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
! 784: dnl aclocal-1.4 backwards compatibility:
! 785: dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
! 786:
! 787:
! 788: # LT_FUNC_DLSYM_USCORE
! 789: # --------------------
! 790: AC_DEFUN([LT_FUNC_DLSYM_USCORE],
! 791: [AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
! 792: if test x"$lt_cv_sys_symbol_underscore" = xyes; then
! 793: if test x"$libltdl_cv_func_dlopen" = xyes ||
! 794: test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
! 795: AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
! 796: [libltdl_cv_need_uscore],
! 797: [libltdl_cv_need_uscore=unknown
! 798: save_LIBS="$LIBS"
! 799: LIBS="$LIBS $LIBADD_DLOPEN"
! 800: _LT_TRY_DLOPEN_SELF(
! 801: [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
! 802: [], [libltdl_cv_need_uscore=cross])
! 803: LIBS="$save_LIBS"
! 804: ])
! 805: fi
! 806: fi
! 807:
! 808: if test x"$libltdl_cv_need_uscore" = xyes; then
! 809: AC_DEFINE([NEED_USCORE], [1],
! 810: [Define if dlsym() requires a leading underscore in symbol names.])
! 811: fi
! 812: ])# LT_FUNC_DLSYM_USCORE
! 813:
! 814: # Old name:
! 815: AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
! 816: dnl aclocal-1.4 backwards compatibility:
! 817: dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])
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