parent
ac2c70d91a
commit
754b445fd5
GPG Key ID:
2A75B7CA8ADED5CF
@ -1,17 +0,0 @@
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## Process this file with automake to produce Makefile.in
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AUTOMAKE_OPTIONS = no-dependencies foreign
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noinst_HEADERS = ltdl.h ltdl_win.h
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noinst_LTLIBRARIES = libltdlc.la
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libltdlc_la_SOURCES = ltdl.c
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libltdlc_la_LIBADD = $(LIBADD_DL)
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## Because we do not have automatic dependency tracking:
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ltdl.lo: $(srcdir)/ltdl.h $(top_builddir)/config.h
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apidox:
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.PHONY: apidox
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@ -1,519 +0,0 @@
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## ltdl.m4 - Configure ltdl for the target system. -*-Shell-script-*-
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## Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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## General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## As a special exception to the GNU General Public License, if you
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## distribute this file as part of a program that contains a
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## configuration script generated by Autoconf, you may include it under
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## the same distribution terms that you use for the rest of that program.
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# serial 1 AC_LIB_LTDL
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AC_DEFUN([AC_LIB_LTDL],
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[AC_PREREQ(2.13)dnl
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AC_REQUIRE([AC_PROG_CC])dnl
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AC_REQUIRE([AC_C_CONST])dnl
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AC_REQUIRE([AC_C_INLINE])dnl
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AC_REQUIRE([AC_LIB_LTDL_COMMON])dnl
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])
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AC_DEFUN([KDE_LIB_LTDL],
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[AC_PREREQ(2.13)dnl
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AC_REQUIRE([AC_PROG_CC])dnl
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AC_REQUIRE([AC_LIB_LTDL_COMMON])dnl
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])
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AC_DEFUN([AC_LIB_LTDL_COMMON],
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[dnl
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dnl AC_LIB_LTDL must perform all the checks necessary for compilation
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dnl of the ltdl objects -- including compiler checks (above) and header
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dnl checks (below).
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AC_REQUIRE([AC_HEADER_STDC])dnl
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AC_CHECK_HEADERS(malloc.h memory.h stdlib.h stdio.h ctype.h dlfcn.h dl.h dld.h)
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AC_CHECK_HEADERS(string.h strings.h, break)
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AC_CHECK_FUNCS(strchr index, break)
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AC_CHECK_FUNCS(strrchr rindex, break)
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AC_CHECK_FUNCS(memcpy bcopy, break)
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AC_CHECK_FUNCS(strcmp)
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AC_REQUIRE([AC_LTDL_ENABLE_INSTALL])dnl
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AC_REQUIRE([AC_LTDL_SHLIBEXT])dnl
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AC_REQUIRE([AC_LTDL_SHLIBPATH])dnl
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AC_REQUIRE([AC_LTDL_SYSSEARCHPATH])dnl
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AC_REQUIRE([AC_LTDL_OBJDIR])dnl
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AC_REQUIRE([AC_LTDL_DLPREOPEN])dnl
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AC_REQUIRE([AC_LTDL_DLLIB])dnl
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AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])dnl
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AC_REQUIRE([AC_LTDL_DLSYM_USCORE])dnl
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AC_REQUIRE([AC_LTDL_SYS_DLOPEN_DEPLIBS])dnl
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])
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AC_DEFUN([AC_LTDL_ENABLE_INSTALL],
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[AC_ARG_ENABLE(ltdl-install,
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AC_HELP_STRING([--enable-ltdl-install],[install libltdl]))
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AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
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AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)
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])])
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AC_DEFUN([AC_LTDL_SNARF_CONFIG],
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[# Read the libtool configuration
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rm -f conftest
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./libtool --config > conftest
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. ./conftest
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rm -f conftest
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])
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# AC_LTDL_SYS_DLOPEN_DEPLIBS
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# --------------------------
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AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS],
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[AC_REQUIRE([AC_CANONICAL_HOST])
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AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
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libltdl_cv_sys_dlopen_deplibs, [dnl
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# PORTME does your system automatically load deplibs for dlopen()?
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libltdl_cv_sys_dlopen_deplibs=unknown
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case "$host_os" in
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cygwin*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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darwin*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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linux*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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netbsd*|openbsd*|freebsd*|dragonfly*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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solaris*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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hpux*|irix*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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osf*)
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libltdl_cv_sys_dlopen_deplibs=yes
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;;
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esac
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])
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if test "$libltdl_cv_sys_dlopen_deplibs" != yes; then
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AC_DEFINE(LTDL_DLOPEN_DEPLIBS, 1,
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[Define if the OS needs help to load dependent libraries for dlopen(). ])
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fi
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])# AC_LTDL_SYS_DLOPEN_DEPLIBS
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AC_DEFUN([AC_LTDL_SHLIBEXT],
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[AC_REQUIRE([AC_LTDL_SNARF_CONFIG])dnl
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AC_CACHE_CHECK([which extension is used for shared libraries],
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libltdl_cv_shlibext, [dnl
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(
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last=
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case "$host_os" in
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cygwin* | mingw*)
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last=".dll"
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;;
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*)
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for spec in $library_names_spec; do
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last="$spec"
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done
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;;
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esac
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changequote(, )
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echo "$last" | sed 's/\[.*\]//;s/^[^.]*//;s/\$.*$//;s/\.$//' > conftest
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changequote([, ])
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)
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libltdl_cv_shlibext=`cat conftest`
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rm -f conftest
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])
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if test -n "$libltdl_cv_shlibext"; then
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AC_DEFINE_UNQUOTED(LTDL_SHLIB_EXT, "$libltdl_cv_shlibext",
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[Define to the extension used for shared libraries, say, ".so". ])
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fi
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])
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AC_DEFUN([AC_LTDL_SHLIBPATH],
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[AC_REQUIRE([AC_LTDL_SNARF_CONFIG])dnl
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AC_CACHE_CHECK([which variable specifies run-time library path],
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libltdl_cv_shlibpath_var, [libltdl_cv_shlibpath_var="$shlibpath_var"])
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if test -n "$libltdl_cv_shlibpath_var"; then
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AC_DEFINE_UNQUOTED(LTDL_SHLIBPATH_VAR, "$libltdl_cv_shlibpath_var",
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[Define to the name of the environment variable that determines the dynamic library search path. ])
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fi
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])
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AC_DEFUN([AC_LTDL_SYSSEARCHPATH],
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[AC_REQUIRE([AC_LTDL_SNARF_CONFIG])dnl
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AC_CACHE_CHECK([for the default library search path],
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libltdl_cv_sys_search_path, [libltdl_cv_sys_search_path="$sys_lib_dlsearch_path_spec"])
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if test -n "$libltdl_cv_sys_search_path"; then
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case "$host" in
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*-*-mingw*) pathsep=";" ;;
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*) pathsep=":" ;;
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esac
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sys_search_path=
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for dir in $libltdl_cv_sys_search_path; do
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if test -z "$sys_search_path"; then
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sys_search_path="$dir"
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else
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sys_search_path="$sys_search_path$pathsep$dir"
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fi
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done
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AC_DEFINE_UNQUOTED(LTDL_SYSSEARCHPATH, "$sys_search_path",
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[Define to the system default library search path. ])
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fi
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])
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AC_DEFUN([AC_LTDL_OBJDIR],
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[AC_CACHE_CHECK([for objdir],
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libltdl_cv_objdir, [libltdl_cv_objdir="$objdir"
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if test -n "$objdir"; then
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:
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else
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rm -f .libs 2>/dev/null
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mkdir .libs 2>/dev/null
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if test -d .libs; then
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libltdl_cv_objdir=.libs
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else
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# MS-DOS does not allow filenames that begin with a dot.
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libltdl_cv_objdir=_libs
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fi
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rmdir .libs 2>/dev/null
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fi])
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AC_DEFINE_UNQUOTED(LTDL_OBJDIR, "$libltdl_cv_objdir/",
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[Define to the sub-directory in which libtool stores uninstalled libraries. ])
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])
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AC_DEFUN([AC_LTDL_DLPREOPEN],
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[AC_REQUIRE([AC_LTDL_GLOBAL_SYMBOL_PIPE])dnl
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AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
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libltdl_cv_preloaded_symbols, [dnl
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if test -n "$global_symbol_pipe"; then
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libltdl_cv_preloaded_symbols=yes
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else
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libltdl_cv_preloaded_symbols=no
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fi
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])
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if test x"$libltdl_cv_preloaded_symbols" = x"yes"; then
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AC_DEFINE(HAVE_PRELOADED_SYMBOLS, 1,
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[Define if libtool can extract symbol lists from object files. ])
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fi
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])
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AC_DEFUN([AC_LTDL_DLLIB],
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[LIBADD_DL=
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AC_CHECK_LIB(dl, dlopen, [AC_DEFINE(HAVE_LIBDL, 1,
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[Define if you have the libdl library or equivalent. ]) LIBADD_DL="-ldl"],
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[AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_LIBDL, 1,
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[Define if you have the libdl library or equivalent.])],
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[AC_CHECK_LIB(svld, dlopen, [AC_DEFINE(HAVE_LIBDL, 1,
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[Define if you have the libdl library or equivalent.]) LIBADD_DL="-lsvld"]
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)])])
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AC_CHECK_FUNC(shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1,
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[Define if you have the shl_load function.])],
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[AC_CHECK_LIB(dld, shl_load,
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[AC_DEFINE(HAVE_SHL_LOAD, 1,
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[Define if you have the shl_load function.])
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LIBADD_DL="$LIBADD_DL -ldld"])
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])
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AC_CHECK_LIB(dld, dld_link, [AC_DEFINE(HAVE_DLD, 1,
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[Define if you have the GNU dld library.])dnl
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test "x$ac_cv_lib_dld_shl_load" = yes || LIBADD_DL="$LIBADD_DL -ldld"])
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AC_SUBST(LIBADD_DL)
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if test "x$ac_cv_func_dlopen" = xyes || test "x$ac_cv_lib_dl_dlopen" = xyes; then
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LIBS_SAVE="$LIBS"
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LIBS="$LIBS $LIBADD_DL"
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AC_CHECK_FUNCS(dlerror)
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LIBS="$LIBS_SAVE"
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fi
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])
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AC_DEFUN([AC_LTDL_GLOBAL_SYMBOL_PIPE],
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[dnl Check for command to grab the raw symbol name followed
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dnl by C symbol name from nm.
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AC_REQUIRE([AC_CANONICAL_HOST])dnl
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AC_REQUIRE([AC_PROG_NM])dnl
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# Check for command to grab the raw symbol name followed by C symbol from nm.
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||||
AC_MSG_CHECKING([command to parse $NM output])
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AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
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[# These are sane defaults that work on at least a few old systems.
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# {They come from Ultrix. What could be older than Ultrix?!! ;)}
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changequote(,)dnl
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# Character class describing NM global symbol codes.
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ac_symcode='[BCDEGRST]'
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# Regexp to match symbols that can be accessed directly from C.
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ac_sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
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# Transform the above into a raw symbol and a C symbol.
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ac_symxfrm='\1 \2\3 \3'
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# Transform an extracted symbol line into a proper C declaration
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ac_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
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# Define system-specific variables.
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case "$host_os" in
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aix*)
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ac_symcode='[BCDT]'
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;;
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cygwin* | mingw*)
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ac_symcode='[ABCDGISTW]'
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;;
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hpux*)
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ac_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
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;;
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irix*)
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ac_symcode='[BCDEGRST]'
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;;
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solaris*)
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ac_symcode='[BDT]'
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;;
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esac
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# If we're using GNU nm, then use its standard symbol codes.
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if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
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ac_symcode='[ABCDGISTW]'
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fi
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changequote([,])dnl
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# Try without a prefix undercore, then with it.
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for ac_symprfx in "" "_"; do
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ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($ac_symcode\)[ ][ ]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"
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# Check to see that the pipe works correctly.
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ac_pipe_works=no
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rm -f conftest.$ac_ext
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cat > conftest.$ac_ext <<EOF
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#ifdef __cplusplus
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extern "C" {
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#endif
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char nm_test_var;
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void nm_test_func(){}
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#ifdef __cplusplus
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}
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#endif
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int main(){nm_test_var='a';nm_test_func;return 0;}
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EOF
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if AC_TRY_EVAL(ac_compile); then
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# Now try to grab the symbols.
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ac_nlist=conftest.nm
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if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
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# Try sorting and uniquifying the output.
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if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
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mv -f "$ac_nlist"T "$ac_nlist"
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else
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rm -f "$ac_nlist"T
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fi
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# Make sure that we snagged all the symbols we need.
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if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
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if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
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cat <<EOF > conftest.$ac_ext
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#ifdef __cplusplus
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extern "C" {
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#endif
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EOF
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# Now generate the symbol file.
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eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.$ac_ext'
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cat <<EOF >> conftest.$ac_ext
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#if defined (__STDC__) && __STDC__
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# define lt_ptr_t void *
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#else
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# define lt_ptr_t char *
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# define const
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#endif
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/* The mapping between symbol names and symbols. */
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const struct {
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const char *name;
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lt_ptr_t address;
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}
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changequote(,)dnl
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lt_preloaded_symbols[] =
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changequote([,])dnl
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{
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EOF
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sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.$ac_ext
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cat <<\EOF >> conftest.$ac_ext
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{0, (lt_ptr_t) 0}
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};
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#ifdef __cplusplus
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}
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#endif
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EOF
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# Now try linking the two files.
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mv conftest.$ac_objext conftstm.$ac_objext
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ac_save_LIBS="$LIBS"
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ac_save_CFLAGS="$CFLAGS"
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LIBS="conftstm.$ac_objext"
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CFLAGS="$CFLAGS$no_builtin_flag"
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||||
if AC_TRY_EVAL(ac_link) && test -s conftest; then
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ac_pipe_works=yes
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||||
else
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echo "configure: failed program was:" >&AC_FD_CC
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||||
cat conftest.$ac_ext >&AC_FD_CC
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fi
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LIBS="$ac_save_LIBS"
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CFLAGS="$ac_save_CFLAGS"
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||||
else
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echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
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||||
fi
|
||||
else
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echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
|
||||
fi
|
||||
else
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echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
|
||||
fi
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||||
else
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echo "$progname: failed program was:" >&AC_FD_CC
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cat conftest.$ac_ext >&AC_FD_CC
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fi
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rm -rf conftest* conftst*
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# Do not use the global_symbol_pipe unless it works.
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if test "$ac_pipe_works" = yes; then
|
||||
if test x"$ac_symprfx" = x"_"; then
|
||||
ac_cv_sys_symbol_underscore=yes
|
||||
else
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||||
ac_cv_sys_symbol_underscore=no
|
||||
fi
|
||||
break
|
||||
else
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ac_cv_sys_global_symbol_pipe=
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||||
fi
|
||||
done
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])
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ac_result=yes
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||||
if test -z "$ac_cv_sys_global_symbol_pipe"; then
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ac_result=no
|
||||
fi
|
||||
AC_MSG_RESULT($ac_result)
|
||||
])
|
||||
|
||||
AC_DEFUN([AC_LTDL_SYMBOL_USCORE],
|
||||
[dnl does the compiler prefix global symbols with an underscore?
|
||||
AC_REQUIRE([AC_LTDL_GLOBAL_SYMBOL_PIPE])dnl
|
||||
AC_MSG_CHECKING([for _ prefix in compiled symbols])
|
||||
AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
|
||||
[ac_cv_sys_symbol_underscore=no
|
||||
cat > conftest.$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 $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
|
||||
fi
|
||||
else
|
||||
echo "configure: failed program was:" >&AC_FD_CC
|
||||
cat conftest.$ac_ext >&AC_FD_CC
|
||||
fi
|
||||
rm -rf conftest*
|
||||
])
|
||||
AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
|
||||
])
|
||||
|
||||
AC_DEFUN([AC_LTDL_DLSYM_USCORE],
|
||||
[AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])dnl
|
||||
if test x"$ac_cv_sys_symbol_underscore" = xyes; then
|
||||
if test x"$ac_cv_func_dlopen" = xyes ||
|
||||
test x"$ac_cv_lib_dl_dlopen" = xyes ; then
|
||||
AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
|
||||
libltdl_cv_need_uscore, [dnl
|
||||
AC_TRY_RUN([
|
||||
#if HAVE_DLFCN_H
|
||||
#include <dlfcn.h>
|
||||
#endif
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#ifdef RTLD_GLOBAL
|
||||
# define LTDL_GLOBAL RTLD_GLOBAL
|
||||
#else
|
||||
# ifdef DL_GLOBAL
|
||||
# define LTDL_GLOBAL DL_GLOBAL
|
||||
# else
|
||||
# define LTDL_GLOBAL 0
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
|
||||
find out it does not work in some platform. */
|
||||
#ifndef LTDL_LAZY_OR_NOW
|
||||
# ifdef RTLD_LAZY
|
||||
# define LTDL_LAZY_OR_NOW RTLD_LAZY
|
||||
# else
|
||||
# ifdef DL_LAZY
|
||||
# define LTDL_LAZY_OR_NOW DL_LAZY
|
||||
# else
|
||||
# ifdef RTLD_NOW
|
||||
# define LTDL_LAZY_OR_NOW RTLD_NOW
|
||||
# else
|
||||
# ifdef DL_NOW
|
||||
# define LTDL_LAZY_OR_NOW DL_NOW
|
||||
# else
|
||||
# define LTDL_LAZY_OR_NOW 0
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
# endif
|
||||
#endif
|
||||
|
||||
void fnord() { int i=42;}
|
||||
int main() {
|
||||
void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
|
||||
if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
|
||||
if(ptr1 && !ptr2) { dlclose(self); exit(0); } } exit(1); }
|
||||
], libltdl_cv_need_uscore=no, libltdl_cv_need_uscore=yes,
|
||||
libltdl_cv_need_uscore=cross
|
||||
)])
|
||||
fi
|
||||
fi
|
||||
|
||||
case "$host_os" in
|
||||
cygwin* | mingw*)
|
||||
libltdl_cv_need_uscore=no
|
||||
;;
|
||||
esac
|
||||
if test x"$libltdl_cv_need_uscore" = xyes; then
|
||||
AC_DEFINE(NEED_USCORE, 1,
|
||||
[Define if dlsym() requires a leading underscode in symbol names. ])
|
||||
fi
|
||||
])
|
||||
Loading…
Reference in new issue