mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 11:42:57 +01:00
982a99456c
Update ltld.[ch] to version 1.5.22. Correct the notes about updating these tools (autoconf/README.TXT) Add configure options for getting the correct option for including a whole archive when linking. llvm-svn: 29529
419 lines
13 KiB
Plaintext
419 lines
13 KiB
Plaintext
## ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
|
|
## Copyright (C) 1999-2000 Free Software Foundation, Inc.
|
|
##
|
|
## 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 7 AC_LIB_LTDL
|
|
|
|
# AC_WITH_LTDL
|
|
# ------------
|
|
# Clients of libltdl can use this macro to allow the installer to
|
|
# choose between a shipped copy of the ltdl sources or a preinstalled
|
|
# version of the library.
|
|
AC_DEFUN([AC_WITH_LTDL],
|
|
[AC_REQUIRE([AC_LIB_LTDL])
|
|
AC_SUBST([LIBLTDL])
|
|
AC_SUBST([INCLTDL])
|
|
|
|
# Unless the user asks us to check, assume no installed ltdl exists.
|
|
use_installed_libltdl=no
|
|
|
|
AC_ARG_WITH([included_ltdl],
|
|
[ --with-included-ltdl use the GNU ltdl sources included here])
|
|
|
|
if test "x$with_included_ltdl" != xyes; then
|
|
# We are not being forced to use the included libltdl sources, so
|
|
# decide whether there is a useful installed version we can use.
|
|
AC_CHECK_HEADER([ltdl.h],
|
|
[AC_CHECK_LIB([ltdl], [lt_dlcaller_register],
|
|
[with_included_ltdl=no],
|
|
[with_included_ltdl=yes])
|
|
])
|
|
fi
|
|
|
|
if test "x$enable_ltdl_install" != xyes; then
|
|
# If the user did not specify an installable libltdl, then default
|
|
# to a convenience lib.
|
|
AC_LIBLTDL_CONVENIENCE
|
|
fi
|
|
|
|
if test "x$with_included_ltdl" = xno; then
|
|
# If the included ltdl is not to be used. then Use the
|
|
# preinstalled libltdl we found.
|
|
AC_DEFINE([HAVE_LTDL], [1],
|
|
[Define this if a modern libltdl is already installed])
|
|
LIBLTDL=-lltdl
|
|
fi
|
|
|
|
# Report our decision...
|
|
AC_MSG_CHECKING([whether to use included libltdl])
|
|
AC_MSG_RESULT([$with_included_ltdl])
|
|
|
|
AC_CONFIG_SUBDIRS([libltdl])
|
|
])# AC_WITH_LTDL
|
|
|
|
|
|
# AC_LIB_LTDL
|
|
# -----------
|
|
# Perform all the checks necessary for compilation of the ltdl objects
|
|
# -- including compiler checks and header checks.
|
|
AC_DEFUN([AC_LIB_LTDL],
|
|
[AC_PREREQ(2.60)
|
|
AC_REQUIRE([AC_PROG_CC])
|
|
AC_REQUIRE([AC_C_CONST])
|
|
AC_REQUIRE([AC_HEADER_STDC])
|
|
AC_REQUIRE([AC_HEADER_DIRENT])
|
|
AC_REQUIRE([_LT_AC_CHECK_DLFCN])
|
|
AC_REQUIRE([AC_LTDL_ENABLE_INSTALL])
|
|
AC_REQUIRE([AC_LTDL_SHLIBEXT])
|
|
AC_REQUIRE([AC_LTDL_SHLIBPATH])
|
|
AC_REQUIRE([AC_LTDL_SYSSEARCHPATH])
|
|
AC_REQUIRE([AC_LTDL_OBJDIR])
|
|
AC_REQUIRE([AC_LTDL_DLPREOPEN])
|
|
AC_REQUIRE([AC_LTDL_DLLIB])
|
|
AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
|
|
AC_REQUIRE([AC_LTDL_DLSYM_USCORE])
|
|
AC_REQUIRE([AC_LTDL_SYS_DLOPEN_DEPLIBS])
|
|
AC_REQUIRE([AC_LTDL_FUNC_ARGZ])
|
|
|
|
AC_CHECK_HEADERS([assert.h ctype.h errno.h malloc.h memory.h stdlib.h \
|
|
stdio.h unistd.h])
|
|
AC_CHECK_HEADERS([dl.h sys/dl.h dld.h mach-o/dyld.h])
|
|
AC_CHECK_HEADERS([string.h strings.h], [break])
|
|
|
|
AC_CHECK_FUNCS([strchr index], [break])
|
|
AC_CHECK_FUNCS([strrchr rindex], [break])
|
|
AC_CHECK_FUNCS([memcpy bcopy], [break])
|
|
AC_CHECK_FUNCS([memmove strcmp])
|
|
AC_CHECK_FUNCS([closedir opendir readdir])
|
|
])# AC_LIB_LTDL
|
|
|
|
|
|
# AC_LTDL_ENABLE_INSTALL
|
|
# ----------------------
|
|
AC_DEFUN([AC_LTDL_ENABLE_INSTALL],
|
|
[AC_ARG_ENABLE([ltdl-install],
|
|
[AS_HELP_STRING([--enable-ltdl-install],[install libltdl])])
|
|
|
|
AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
|
|
AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)
|
|
])# AC_LTDL_ENABLE_INSTALL
|
|
|
|
|
|
# AC_LTDL_SYS_DLOPEN_DEPLIBS
|
|
# --------------------------
|
|
AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS],
|
|
[AC_REQUIRE([AC_CANONICAL_HOST])
|
|
AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
|
|
[libltdl_cv_sys_dlopen_deplibs],
|
|
[# PORTME does your system automatically load deplibs for dlopen?
|
|
# or its logical equivalent (e.g. shl_load for HP-UX < 11)
|
|
# For now, we just catch OSes we know something about -- in the
|
|
# future, we'll try test this programmatically.
|
|
libltdl_cv_sys_dlopen_deplibs=unknown
|
|
case "$host_os" in
|
|
aix3*|aix4.1.*|aix4.2.*)
|
|
# Unknown whether this is true for these versions of AIX, but
|
|
# we want this `case' here to explicitly catch those versions.
|
|
libltdl_cv_sys_dlopen_deplibs=unknown
|
|
;;
|
|
aix[[45]]*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
darwin*)
|
|
# Assuming the user has installed a libdl from somewhere, this is true
|
|
# If you are looking for one http://www.opendarwin.org/projects/dlcompat
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
|
|
# GNU and its variants, using gnu ld.so (Glibc)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
hpux10*|hpux11*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
interix*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
irix[[12345]]*|irix6.[[01]]*)
|
|
# Catch all versions of IRIX before 6.2, and indicate that we don't
|
|
# know how it worked for any of those versions.
|
|
libltdl_cv_sys_dlopen_deplibs=unknown
|
|
;;
|
|
irix*)
|
|
# The case above catches anything before 6.2, and it's known that
|
|
# at 6.2 and later dlopen does load deplibs.
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
netbsd*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
openbsd*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
osf[[1234]]*)
|
|
# dlopen did load deplibs (at least at 4.x), but until the 5.x series,
|
|
# it did *not* use an RPATH in a shared library to find objects the
|
|
# library depends on, so we explictly say `no'.
|
|
libltdl_cv_sys_dlopen_deplibs=no
|
|
;;
|
|
osf5.0|osf5.0a|osf5.1)
|
|
# dlopen *does* load deplibs and with the right loader patch applied
|
|
# it even uses RPATH in a shared library to search for shared objects
|
|
# that the library depends on, but there's no easy way to know if that
|
|
# patch is installed. Since this is the case, all we can really
|
|
# say is unknown -- it depends on the patch being installed. If
|
|
# it is, this changes to `yes'. Without it, it would be `no'.
|
|
libltdl_cv_sys_dlopen_deplibs=unknown
|
|
;;
|
|
osf*)
|
|
# the two cases above should catch all versions of osf <= 5.1. Read
|
|
# the comments above for what we know about them.
|
|
# At > 5.1, deplibs are loaded *and* any RPATH in a shared library
|
|
# is used to find them so we can finally say `yes'.
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
solaris*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
|
|
libltdl_cv_sys_dlopen_deplibs=yes
|
|
;;
|
|
esac
|
|
])
|
|
if test "$libltdl_cv_sys_dlopen_deplibs" != yes; then
|
|
AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
|
|
[Define if the OS needs help to load dependent libraries for dlopen().])
|
|
fi
|
|
])# AC_LTDL_SYS_DLOPEN_DEPLIBS
|
|
|
|
|
|
# AC_LTDL_SHLIBEXT
|
|
# ----------------
|
|
AC_DEFUN([AC_LTDL_SHLIBEXT],
|
|
[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
|
|
AC_CACHE_CHECK([which extension is used for loadable modules],
|
|
[libltdl_cv_shlibext],
|
|
[
|
|
module=yes
|
|
eval libltdl_cv_shlibext=$shrext_cmds
|
|
])
|
|
if test -n "$libltdl_cv_shlibext"; then
|
|
AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$libltdl_cv_shlibext"],
|
|
[Define to the extension used for shared libraries, say, ".so".])
|
|
fi
|
|
])# AC_LTDL_SHLIBEXT
|
|
|
|
|
|
# AC_LTDL_SHLIBPATH
|
|
# -----------------
|
|
AC_DEFUN([AC_LTDL_SHLIBPATH],
|
|
[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
|
|
AC_CACHE_CHECK([which variable specifies run-time library path],
|
|
[libltdl_cv_shlibpath_var], [libltdl_cv_shlibpath_var="$shlibpath_var"])
|
|
if test -n "$libltdl_cv_shlibpath_var"; then
|
|
AC_DEFINE_UNQUOTED([LTDL_SHLIBPATH_VAR], ["$libltdl_cv_shlibpath_var"],
|
|
[Define to the name of the environment variable that determines the dynamic library search path.])
|
|
fi
|
|
])# AC_LTDL_SHLIBPATH
|
|
|
|
|
|
# AC_LTDL_SYSSEARCHPATH
|
|
# ---------------------
|
|
AC_DEFUN([AC_LTDL_SYSSEARCHPATH],
|
|
[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
|
|
AC_CACHE_CHECK([for the default library search path],
|
|
[libltdl_cv_sys_search_path],
|
|
[libltdl_cv_sys_search_path="$sys_lib_dlsearch_path_spec"])
|
|
if test -n "$libltdl_cv_sys_search_path"; then
|
|
sys_search_path=
|
|
for dir in $libltdl_cv_sys_search_path; do
|
|
if test -z "$sys_search_path"; then
|
|
sys_search_path="$dir"
|
|
else
|
|
sys_search_path="$sys_search_path$PATH_SEPARATOR$dir"
|
|
fi
|
|
done
|
|
AC_DEFINE_UNQUOTED([LTDL_SYSSEARCHPATH], ["$sys_search_path"],
|
|
[Define to the system default library search path.])
|
|
fi
|
|
])# AC_LTDL_SYSSEARCHPATH
|
|
|
|
|
|
# AC_LTDL_OBJDIR
|
|
# --------------
|
|
AC_DEFUN([AC_LTDL_OBJDIR],
|
|
[AC_CACHE_CHECK([for objdir],
|
|
[libltdl_cv_objdir],
|
|
[libltdl_cv_objdir="$objdir"
|
|
if test -n "$objdir"; then
|
|
:
|
|
else
|
|
rm -f .libs 2>/dev/null
|
|
mkdir .libs 2>/dev/null
|
|
if test -d .libs; then
|
|
libltdl_cv_objdir=.libs
|
|
else
|
|
# MS-DOS does not allow filenames that begin with a dot.
|
|
libltdl_cv_objdir=_libs
|
|
fi
|
|
rmdir .libs 2>/dev/null
|
|
fi
|
|
])
|
|
AC_DEFINE_UNQUOTED([LTDL_OBJDIR], ["$libltdl_cv_objdir/"],
|
|
[Define to the sub-directory in which libtool stores uninstalled libraries.])
|
|
])# AC_LTDL_OBJDIR
|
|
|
|
|
|
# AC_LTDL_DLPREOPEN
|
|
# -----------------
|
|
AC_DEFUN([AC_LTDL_DLPREOPEN],
|
|
[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
|
|
AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
|
|
[libltdl_cv_preloaded_symbols],
|
|
[if test -n "$lt_cv_sys_global_symbol_pipe"; then
|
|
libltdl_cv_preloaded_symbols=yes
|
|
else
|
|
libltdl_cv_preloaded_symbols=no
|
|
fi
|
|
])
|
|
if test x"$libltdl_cv_preloaded_symbols" = xyes; then
|
|
AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
|
|
[Define if libtool can extract symbol lists from object files.])
|
|
fi
|
|
])# AC_LTDL_DLPREOPEN
|
|
|
|
|
|
# AC_LTDL_DLLIB
|
|
# -------------
|
|
AC_DEFUN([AC_LTDL_DLLIB],
|
|
[LIBADD_DL=
|
|
AC_SUBST(LIBADD_DL)
|
|
AC_LANG_PUSH([C])
|
|
|
|
AC_CHECK_FUNC([shl_load],
|
|
[AC_DEFINE([HAVE_SHL_LOAD], [1],
|
|
[Define if you have the shl_load function.])],
|
|
[AC_CHECK_LIB([dld], [shl_load],
|
|
[AC_DEFINE([HAVE_SHL_LOAD], [1],
|
|
[Define if you have the shl_load function.])
|
|
LIBADD_DL="$LIBADD_DL -ldld"],
|
|
[AC_CHECK_LIB([dl], [dlopen],
|
|
[AC_DEFINE([HAVE_LIBDL], [1],
|
|
[Define if you have the libdl library or equivalent.])
|
|
LIBADD_DL="-ldl" libltdl_cv_lib_dl_dlopen="yes"],
|
|
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
|
|
# include <dlfcn.h>
|
|
#endif
|
|
]], [[dlopen(0, 0);]])],[AC_DEFINE([HAVE_LIBDL], [1],
|
|
[Define if you have the libdl library or equivalent.]) libltdl_cv_func_dlopen="yes"],[AC_CHECK_LIB([svld], [dlopen],
|
|
[AC_DEFINE([HAVE_LIBDL], [1],
|
|
[Define if you have the libdl library or equivalent.])
|
|
LIBADD_DL="-lsvld" libltdl_cv_func_dlopen="yes"],
|
|
[AC_CHECK_LIB([dld], [dld_link],
|
|
[AC_DEFINE([HAVE_DLD], [1],
|
|
[Define if you have the GNU dld library.])
|
|
LIBADD_DL="$LIBADD_DL -ldld"],
|
|
[AC_CHECK_FUNC([_dyld_func_lookup],
|
|
[AC_DEFINE([HAVE_DYLD], [1],
|
|
[Define if you have the _dyld_func_lookup function.])])
|
|
])
|
|
])
|
|
])
|
|
])
|
|
])
|
|
])
|
|
|
|
if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
|
|
then
|
|
lt_save_LIBS="$LIBS"
|
|
LIBS="$LIBS $LIBADD_DL"
|
|
AC_CHECK_FUNCS([dlerror])
|
|
LIBS="$lt_save_LIBS"
|
|
fi
|
|
AC_LANG_POP
|
|
])# AC_LTDL_DLLIB
|
|
|
|
|
|
# AC_LTDL_SYMBOL_USCORE
|
|
# ---------------------
|
|
# does the compiler prefix global symbols with an underscore?
|
|
AC_DEFUN([AC_LTDL_SYMBOL_USCORE],
|
|
[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
|
|
AC_CACHE_CHECK([for _ prefix in compiled symbols],
|
|
[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 \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
|
|
# See whether the symbols have a leading underscore.
|
|
if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
|
|
ac_cv_sys_symbol_underscore=yes
|
|
else
|
|
if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
|
|
:
|
|
else
|
|
echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
fi
|
|
else
|
|
echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
else
|
|
echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
|
|
cat conftest.c >&AS_MESSAGE_LOG_FD
|
|
fi
|
|
rm -rf conftest*
|
|
])
|
|
])# AC_LTDL_SYMBOL_USCORE
|
|
|
|
|
|
# AC_LTDL_DLSYM_USCORE
|
|
# --------------------
|
|
AC_DEFUN([AC_LTDL_DLSYM_USCORE],
|
|
[AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
|
|
if test x"$ac_cv_sys_symbol_underscore" = xyes; then
|
|
if test x"$libltdl_cv_func_dlopen" = xyes ||
|
|
test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
|
|
AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
|
|
[libltdl_cv_need_uscore],
|
|
[libltdl_cv_need_uscore=unknown
|
|
save_LIBS="$LIBS"
|
|
LIBS="$LIBS $LIBADD_DL"
|
|
_LT_AC_TRY_DLOPEN_SELF(
|
|
[libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
|
|
[], [libltdl_cv_need_uscore=cross])
|
|
LIBS="$save_LIBS"
|
|
])
|
|
fi
|
|
fi
|
|
|
|
if test x"$libltdl_cv_need_uscore" = xyes; then
|
|
AC_DEFINE([NEED_USCORE], [1],
|
|
[Define if dlsym() requires a leading underscore in symbol names.])
|
|
fi
|
|
])# AC_LTDL_DLSYM_USCORE
|
|
|
|
# AC_LTDL_FUNC_ARGZ
|
|
# -----------------
|
|
AC_DEFUN([AC_LTDL_FUNC_ARGZ],
|
|
[AC_CHECK_HEADERS([argz.h])
|
|
|
|
AC_CHECK_TYPES([error_t],
|
|
[],
|
|
[AC_DEFINE([error_t], [int],
|
|
[Define to a type to use for `error_t' if it is not otherwise available.])],
|
|
[#if HAVE_ARGZ_H
|
|
# include <argz.h>
|
|
#endif])
|
|
|
|
AC_CHECK_FUNCS([argz_append argz_create_sep argz_insert argz_next argz_stringify])
|
|
])# AC_LTDL_FUNC_ARGZ
|