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[PATCH] [cygwin|mingw] fix dlpreopen with --disable-static (take 7)
|
From: |
Charles Wilson |
|
Subject: |
[PATCH] [cygwin|mingw] fix dlpreopen with --disable-static (take 7) |
|
Date: |
Thu, 24 Jun 2010 22:57:15 -0400 |
* libltdl/config/general.m4sh (func_tr_sh): New function.
* libltdl/config/ltmain.m4sh (func_generate_dlsyms) [cygwin|mingw]:
Obtain DLL name corresponding to import library by using value
stored in unique variable libfile_$(transliterated implib name).
If that fails, use $sharedlib_from_linklib_cmd to extract DLL
name from import library directly. Also, properly extract dlsyms
from the import library.
(func_mode_link) [cygwin|mingw]: Prefer to dlpreopen DLLs
over static libs when both are available. When dlpreopening
DLLs, use linklib (that is, import lib) as dlpreopen file,
rather than DLL. Store name of associated la file in
unique variable libfile_$(transliterated implib name)
for later use.
(func_win32_libid): Accomodate pei-i386 import libs
as well as pe-i386.
(func_cygming_dll_for_implib): New function.
(func_cygming_dll_for_implib_fallback): New function.
(func_cygming_dll_for_implib_fallback_core): New function.
(func_cygming_gnu_implib_p): New function.
(func_cygming_ms_implib_p): New function.
* libltdl/m4/libtool.m4 (_LT_CMD_GLOBAL_SYMBOLS): Adjust sed
expressions for lt_cv_sys_global_symbol_to_c_name_address and
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
as trailing space after module name is optional.
(_LT_LINKER_SHLIBS) [cygwin|mingw][C++]:
Set exclude_expsyms correctly for $host. Simplify regular
expression in export_symbols_cmds.
(_LT_LINKER_SHLIBS) [cygwin|mingw|pw32][C]: Set exclude_expsyms
correctly for $host. Enable export_symbols_cmds to identify
DATA exports by _nm_ prefix.
(_LT_CHECK_SHAREDLIB_FROM_LINKLIB): New macro sets
sharedlib_from_linklib_cmd variable.
(_LT_DECL_DLLTOOL): New macro ensures DLLTOOL is always set.
---
Without this patch, when --disable-static on PE/COFF platforms,
dlpreopen symbols are extracted incorrectly (because libtool uses
the same algorithm for extracting symbols from import libs as
from static libs; when both are present, the static lib is used
to determine the symbol names even when linking dynamically --
which is another mistake).
So, for example, in demo-shared.test, helldl.exeS.c looks like:
/* External symbol declarations for the compiler. */
extern int _CTOR_LIST__();
extern int _DTOR_LIST__();
extern int __CTOR_LIST__();
extern int __DTOR_LIST__();
extern char __ImageBase;
extern char __cygwin_cxx_malloc;
extern int __deregister_frame_info();
extern char __dynamically_loaded;
extern int __gcc_deregister_frame();
extern int __gcc_register_frame();
extern int __register_frame_info();
...
extern char _image_base__;
extern char _imp____deregister_frame_info;
extern char _imp____register_frame_info;
extern char _imp___impure_ptr;
extern char _imp__abort;
...
extern char _size_of_heap_commit__;
extern char _size_of_heap_reserve__;
extern char _size_of_stack_commit__;
extern char _size_of_stack_reserve__;
extern char _subsystem__;
extern int abort();
extern int calloc();
extern char cyggcc_s_1_dll_iname;
extern char cygwin1_dll_iname;
extern int cygwin_attach_dll();
extern int cygwin_create_path();
extern int cygwin_detach_dll();
extern int cygwin_internal();
extern int cygwin_premain0();
extern int cygwin_premain1();
extern int cygwin_premain2();
...
extern int foo(); /* THESE ARE THE THREE WE CARE ABOUT */
extern int free();
extern int hello();
...
extern char register_frame_info_ptr;
extern int strlen();
extern int vsnprintf();
With similar errors in
extern lt_dlsymlist
lt__PROGRAM__LTX_preloaded_symbols[];
lt_dlsymlist
lt__PROGRAM__LTX_preloaded_symbols[] =
{ { "@PROGRAM@", (void *) 0 },
...
}
However, with this patch, helldl.exeS.c has:
/* External symbol declarations for the compiler. */
extern int foo();
extern int hello();
extern char nothing;
extern lt_dlsymlist
lt__PROGRAM__LTX_preloaded_symbols[];
lt_dlsymlist
lt__PROGRAM__LTX_preloaded_symbols[] =
{ { "@PROGRAM@", (void *) 0 },
{"cyghello-2.dll", (void *) 0},
{"nothing", (void *) ¬hing},
{"hello", (void *) &hello},
{"foo", (void *) &foo},
{0, (void *) 0}
};
Which is exactly what we want. Along the way to developing
this patch, a number of other mis-features and errors were
discovered and fixed -- mostly as a result of issues pointed
out by reviewers on this list. These are the reasons for the
somewhat large scope of this patch. For all the background,
see the following threads:
take 1:
http://lists.gnu.org/archive/html/libtool-patches/2008-11/msg00019.html
take 2:
http://lists.gnu.org/archive/html/libtool-patches/2009-01/msg00001.html
take 3:
http://lists.gnu.org/archive/html/libtool-patches/2009-01/msg00056.html
take 4:
http://lists.gnu.org/archive/html/libtool-patches/2009-01/msg00096.html
take 5:
http://lists.gnu.org/archive/html/libtool-patches/2009-01/msg00232.html
take 6:
http://lists.gnu.org/archive/html/libtool-patches/2009-06/msg00029.html
Note that in the early days, there was an additional "error" (which,
back then, caused demo-shared.test to actually fail): The second entry
in the preloaded symbols array:
lt__PROGRAM__LTX_preloaded_symbols[] =
{ { "@PROGRAM@", (void *) 0 },
bad: {"libhello.a". (void *) 0},
good: {"cyghello-2.dll", (void *) 0},
was incorrect. In modern libtool, even without the attached patch, that
particular error no longer occurs (but, as shown above, the symbol
extraction is heavily fubared without this patch).
Finally, it has been a year or more since the --identify
and --identify-strict options were added to binutils' dlltool, and
binutils 2.20 is provided by all modern MinGW and cygwin distributions.
So, the "fallback" implementation for detecting the DLL name from
an import lib (*) will see less and less use as time goes on. However,
I think it may still be premature to commit this patch without that
fallback.
(*) Note that you only need to determine the dll name for an import
lib using dlltool --identify or the fallback, IF and ONLY IF you are
linking to a library WITHOUT a corresponding .la file. If you DO have
a .la file for the library you're linking to, then the "save the .la
file using a magic shell variable" approach is used.
--
Chuck
libltdl/config/general.m4sh | 17 ++++
libltdl/config/ltmain.m4sh | 224 +++++++++++++++++++++++++++++++++++++++----
libltdl/m4/libtool.m4 | 62 +++++++++++-
3 files changed, 280 insertions(+), 23 deletions(-)
diff --git a/libltdl/config/general.m4sh b/libltdl/config/general.m4sh
index bb254cc..2a06b45 100644
--- a/libltdl/config/general.m4sh
+++ b/libltdl/config/general.m4sh
@@ -559,4 +559,21 @@ func_show_eval_locale ()
fi
fi
}
+
+# func_tr_sh
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result. All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+ case "$1" in
+ [0-9]* | *[!a-zA-Z0-9_]*)
+ func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/;
s/[^a-zA-Z0-9_]/_/g'`
+ ;;
+ * )
+ func_tr_sh_result=$1
+ ;;
+ esac
+}
]])
diff --git a/libltdl/config/ltmain.m4sh b/libltdl/config/ltmain.m4sh
index a325e27..1f48dac 100644
--- a/libltdl/config/ltmain.m4sh
+++ b/libltdl/config/ltmain.m4sh
@@ -2012,10 +2012,49 @@ extern \"C\" {
func_verbose "extracting global C symbols from \`$dlprefile'"
func_basename "$dlprefile"
name="$func_basename_result"
- $opt_dry_run || {
- eval '$ECHO ": $name " >> "$nlist"'
- eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >> '$nlist'"
- }
+ case $host in
+ *cygwin* | *mingw* | *cegcc* )
+ # if an import library, we need to obtain dlname
+ if func_win32_import_lib_p "$dlprefile"; then
+ func_tr_sh "$dlprefile"
+ eval "curr_lafile=\$libfile_$func_tr_sh_result"
+ dlprefile_dlbasename=""
+ if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+ # Use subshell, to avoid clobbering current variable values
+ dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+ if test -n "$dlprefile_dlname" ; then
+ func_basename "$dlprefile_dlname"
+ dlprefile_dlbasename="$func_basename_result"
+ else
+ # no lafile. user explicitly requested -dlpreopen <import
library>.
+ eval '$sharedlib_from_linklib "$dlprefile"'
+ dlprefile_dlbasename=$sharedlib_from_linklib_result
+ fi
+ fi
+ $opt_dry_run || {
+ if test -n "$dlprefile_dlbasename" ; then
+ eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+ else
+ func_warning "Could not compute DLL name from $name"
+ eval '$ECHO ": $name " >> "$nlist"'
+ fi
+ eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe |
+ $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >>
'$nlist'"
+ }
+ else # not an import lib
+ $opt_dry_run || {
+ eval '$ECHO ": $name " >> "$nlist"'
+ eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >>
'$nlist'"
+ }
+ fi
+ ;;
+ *)
+ $opt_dry_run || {
+ eval '$ECHO ": $name " >> "$nlist"'
+ eval "$NM $dlprefile 2>/dev/null | $global_symbol_pipe >>
'$nlist'"
+ }
+ ;;
+ esac
done
$opt_dry_run || {
@@ -2220,6 +2259,129 @@ func_win32_libid ()
$ECHO "$win32_libid_type"
}
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+# $sharedlib_from_linklib_cmd
+# Result is available in the variable
+# $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+ $opt_debug
+ sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+ $opt_debug
+ $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+ sed '/^Contents of section '"$1"':/{
+ # Place marker at beginning of archive member dllname section
+ s/.*/====MARK====/
+ p
+ d
+ }
+ # These lines can sometimes be longer than 43 characters, but
+ # are always uninteresting
+ /:[ \t]*file format pe[i]\{,1\}-i386$/d
+ /^In archive [^:]*:/d
+ # Ensure marker is printed
+ /^====MARK====/p
+ # Remove all lines with less than 43 characters
+ /^.\{43\}/!d
+ # From remoaining lines, remove first 43 characters
+ s/^.\{43\}//' |
+ sed -n '
+ # Join marker and all lines until next marker into a single line
+ /^====MARK====/ b para
+ H
+ $ b para
+ b
+ :para
+ x
+ s/\n//g
+ # Remove the marker
+ s/^====MARK====//
+ # Remove trailing dots and whitespace
+ s/[\. \t]*$//
+ # Print
+ /./p
+ ' |
+ # we now have a list, one entry per line, of the stringified
+ # contents of the appropriate section of all members of the
+ # archive which possess that section. Heuristic: eliminate
+ # all those which have a first or second character that is
+ # a '.' (that is, objdump's representation of an unprintable
+ # character.) This should work for all archives with less than
+ # 0x302f exports -- but will fail for DLLs whose name actually
+ # begins with a literal '.' or a single character followed by
+ # a '.'.
+ #
+ # Of those that remain, print the first one.
+ sed -e '/^\./d' -e '/^.\./d' | sed -n -e '1p'
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+ $opt_debug
+ func_cygming_gnu_implib_tmp=`eval "\$NM \$1 | \$global_symbol_pipe | \$EGREP
' (_head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname)\\\$'"`
+ test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+ $opt_debug
+ func_cygming_ms_implib_tmp=`eval "\$NM \$1 | \$global_symbol_pipe | grep
'_NULL_IMPORT_DESCRIPTOR'"`
+ test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+# $sharedlib_from_linklib_cmd
+# Result is available in the variable
+# $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+ $opt_debug
+ if func_cygming_gnu_implib_p "$1" ; then
+ # binutils import library
+ sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core
'.idata$7' "$1"`
+ elif func_cygming_ms_implib_p "$1" ; then
+ # ms-generated import library
+ sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core
'.idata$6' "$1"`
+ else
+ # unknown
+ sharedlib_from_linklib_result=""
+ fi
+}
# func_extract_an_archive dir oldlib
@@ -5167,20 +5329,46 @@ func_mode_link ()
if test -z "$libdir" && test "$linkmode" = prog; then
func_fatal_error "only libraries may -dlpreopen a convenience
library: \`$lib'"
fi
- # Prefer using a static library (so that no silly _DYNAMIC symbols
- # are required to link).
- if test -n "$old_library"; then
- newdlprefiles="$newdlprefiles $dir/$old_library"
- # Keep a list of preopened convenience libraries to check
- # that they are being used correctly in the link pass.
- test -z "$libdir" && \
- dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
- # Otherwise, use the dlname, so that lt_dlopen finds it.
- elif test -n "$dlname"; then
- newdlprefiles="$newdlprefiles $dir/$dlname"
- else
- newdlprefiles="$newdlprefiles $dir/$linklib"
- fi
+ case "$host" in
+ # special handling for platforms with PE-DLLs.
+ *cygwin* | *mingw* | *cegcc* )
+ # Linker will automatically link against shared library if both
+ # static and shared are present. Therefore, ensure we extract
+ # symbols from the import library if a shared library is present
+ # (otherwise, the dlopen module name will be incorrect). We do
+ # this by putting the import library name into $newdlprefiles.
+ # We recover the dlopen module name by 'saving' the la file
+ # name in a special purpose variable, and (later) extracting the
+ # dlname from the la file.
+ if test -n "$dlname"; then
+ func_tr_sh "$dir/$linklib"
+ eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+ newdlprefiles="$newdlprefiles $dir/$linklib"
+ else
+ newdlprefiles="$newdlprefiles $dir/$old_library"
+ # Keep a list of preopened convenience libraries to check
+ # that they are being used correctly in the link pass.
+ test -z "$libdir" && \
+ dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
+ fi
+ ;;
+ * )
+ # Prefer using a static library (so that no silly _DYNAMIC symbols
+ # are required to link).
+ if test -n "$old_library"; then
+ newdlprefiles="$newdlprefiles $dir/$old_library"
+ # Keep a list of preopened convenience libraries to check
+ # that they are being used correctly in the link pass.
+ test -z "$libdir" && \
+ dlpreconveniencelibs="$dlpreconveniencelibs $dir/$old_library"
+ # Otherwise, use the dlname, so that lt_dlopen finds it.
+ elif test -n "$dlname"; then
+ newdlprefiles="$newdlprefiles $dir/$dlname"
+ else
+ newdlprefiles="$newdlprefiles $dir/$linklib"
+ fi
+ ;;
+ esac
fi # $pass = dlpreopen
if test -z "$libdir"; then
diff --git a/libltdl/m4/libtool.m4 b/libltdl/m4/libtool.m4
index b93dd0c..3c09203 100644
--- a/libltdl/m4/libtool.m4
+++ b/libltdl/m4/libtool.m4
@@ -170,6 +170,7 @@ m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_CHECK_SHELL_FEATURES])dnl
m4_require([_LT_CMD_RELOAD])dnl
m4_require([_LT_CHECK_MAGIC_METHOD])dnl
+m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
m4_require([_LT_CMD_OLD_ARCHIVE])dnl
m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
@@ -3292,6 +3293,45 @@ dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_PROG_NM], [])
dnl AC_DEFUN([AC_PROG_NM], [])
+# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+# ----------------------
+# how to determine the name of the shared library
+# associated with a specific link library.
+# -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+m4_require([_LT_DECL_DLLTOOL])
+AC_CACHE_CHECK([how to associate runtime and link libraries],
+lt_cv_sharedlib_from_linklib_cmd,
+[lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+ # two different shell functions defined in ltmain.sh
+ # decide which to use based on capabilities of $DLLTOOL
+ case `$DLLTOOL --help 2>&1` in
+ *--identify-strict*)
+ lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+ ;;
+ *)
+ lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+ ;;
+ esac
+ ;;
+*)
+ # fallback: assume linklib IS sharedlib
+ lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+ ;;
+esac
+])
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
+ [Command to associate shared and link libraries])
+])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+
# LT_LIB_M
# --------
@@ -3418,8 +3458,8 @@ esac
lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int
\1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
# Transform an extracted symbol line into symbol name and symbol address
-lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\) $/
{\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/
{\"\2\", (void *) \&\2},/p'"
-lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^
]]*\) $/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^
]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/
{\"lib\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/
{\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/
{\"\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^
]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\)
\(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\)
\([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'"
# Handle CRLF in mingw tool chain
opt_cr=
@@ -4237,6 +4277,7 @@ m4_require([_LT_TAG_COMPILER])dnl
AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
m4_if([$1], [CXX], [
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience |
$global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
case $host_os in
aix[[4-9]]*)
# If we're using GNU nm, then we don't want the "-C" option.
@@ -4253,13 +4294,13 @@ m4_if([$1], [CXX], [
_LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
;;
cygwin* | mingw* | cegcc*)
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience |
$global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1
DATA/;/^.*[[ ]]__nm__/s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[
]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience |
$global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1
DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[
]]/s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(exclude_expsyms,
$1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
;;
*)
_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience |
$global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
;;
esac
- _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
], [
runpath_var=
_LT_TAGVAR(allow_undefined_flag, $1)=
@@ -4427,7 +4468,8 @@ _LT_EOF
_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
_LT_TAGVAR(always_export_symbols, $1)=no
_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
- _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience |
$global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1
DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq >
$export_symbols'
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience |
$global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1
DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[
]]/s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(exclude_expsyms,
$1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs
$compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base
-Xlinker --out-implib -Xlinker $lib'
@@ -7121,6 +7163,16 @@ _LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
AC_SUBST([OBJDUMP])
])
+# _LT_DECL_DLLTOOL
+# --------------
+# If we don't have a new enough Autoconf to choose the best dlltool
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_DLLTOOL],
+[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
+AC_SUBST([DLLTOOL])
+])
# _LT_DECL_SED
# ------------
--
1.7.0.4
- [PATCH] [cygwin|mingw] fix dlpreopen with --disable-static (take 7),
Charles Wilson <=