implemented qse_fio_chmod() for win32 and unix

- on win32, it is a best effort implemention.
- it gets the volume name from a handle and use SetFileAttributes().
fixed the problem of wrongly detecting objdump.
- place AC_PROG_LIBTOOL after any AC_CHECK_TOOL.
- otherwise, AC_PROG_LIBTOOL overrides the value of tools checked.

qse/lib/Makefile.in

@@ -99,6 +99,7 @@ JAR = @JAR@
 JAR_PATH = @JAR_PATH@
 JAVAC = @JAVAC@
 JAVAC_PATH = @JAVAC_PATH@
+LD = @LD@
 LDFLAGS = @LDFLAGS@
 LIBM = @LIBM@
 LIBOBJS = @LIBOBJS@
@@ -109,7 +110,9 @@ LN_S = @LN_S@
 LTLIBOBJS = @LTLIBOBJS@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
+NM = @NM@
 NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
 OBJEXT = @OBJEXT@
 PACKAGE = @PACKAGE@
 PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@