Use a unique base address for each DLL.

Fixed ltmain.sh for MSYS development environment.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40731

acinclude.m4

@@ -3043,7 +3043,7 @@ case $host_os in
     _LT_AC_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
 
     if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
-      _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+      _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base ${wl}--out-implib,$lib'
       # If the export-symbols file already is a .def file (1st line
       # is EXPORTS), use it as is; otherwise, prepend...
       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
@@ -3052,7 +3052,7 @@ case $host_os in
 	echo EXPORTS > $output_objdir/$soname.def;
 	cat $export_symbols >> $output_objdir/$soname.def;
       fi~
-      $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+      $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base ${wl}--out-implib,$lib'
     else
       _LT_AC_TAGVAR(ld_shlibs, $1)=no
     fi
@@ -5266,7 +5266,7 @@ EOF
       _LT_AC_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGS]] /s/.* \([[^ ]]*\)/\1 DATA/'\'' | $SED -e '\''/^[[AITW]] /s/.* //'\'' | sort | uniq > $export_symbols'
 
       if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
-        _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000 ${wl}--out-implib,$lib'
+        _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base ${wl}--out-implib,$lib'
 	# If the export-symbols file already is a .def file (1st line
 	# is EXPORTS), use it as is; otherwise, prepend...
 	_LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
@@ -5275,7 +5275,7 @@ EOF
 	  echo EXPORTS > $output_objdir/$soname.def;
 	  cat $export_symbols >> $output_objdir/$soname.def;
 	fi~
-	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--image-base=0x10000000  ${wl}--out-implib,$lib'
+	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base  ${wl}--out-implib,$lib'
       else
 	ld_shlibs=no
       fi

ltmain.sh

@@ -4656,8 +4656,13 @@ check_executable(const char * path)
     return 0;
 
   if ((stat (path, &st) >= 0) &&
-      (((st.st_mode & S_IXOTH) == S_IXOTH) ||
+      (
+#ifdef S_IXOTH
+       ((st.st_mode & S_IXOTH) == S_IXOTH) ||
+#endif
+#ifdef S_IXGRP
        ((st.st_mode & S_IXGRP) == S_IXGRP) ||
+#endif
        ((st.st_mode & S_IXUSR) == S_IXUSR)))
     return 1;
   else