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libtool: use -Fe with MSVC to specify filename

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This avoids a deprecation warning with current versions of MSVC, by
replacing the -o flag with -Fe. -Fe is documented as supported at
least as far back as Visual C 6.0 which was released in 1998.

* m4/libtool.m4: Use -Fe instead of -o to specify DLL output filename
for MSVC.

Signed-off-by: Olly Betts <olly@survex.com>
This commit is contained in:
Olly Betts 2018-01-24 14:09:23 +13:00 committed by Ileana Dumitrescu
parent 4da5b57531
commit 81e8abf3dd
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GPG Key ID: 6570EA01146F7354
1 changed files with 2 additions and 2 deletions
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m4/libtool.m4 vendored
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@ -5598,14 +5598,14 @@ _LT_EOF
# Tell ltmain to make .dll files, not .so files.
shrext_cmds=.dll
# FIXME: Setting linknames here is a bad hack.
_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
_LT_TAGVAR(archive_cmds, $1)='$CC -Fe $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
cp "$export_symbols" "$output_objdir/$soname.def";
echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
else
$SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
fi~
$CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
$CC -Fe $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
linknames='
# The linker will not automatically build a static lib if we build a DLL.
# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'