build: workaround build failures with old autoconf version

Xiao Yang reported that fstests failed to build on RHEL6.9 hosts due
to old autoreconf didn't pass -I to aclocal -I. (This was fixed by
autoconf commit 44fbeef86d03 ("Pass autoreconf -I to aclocal -I"),
but not on RHEL6.9).

So call aclocal, autoheader and autoconf directly instead of
autoreconf, as what's done in xfsprogs Makefile.

Reported-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>

Makefile

@@ -41,13 +41,13 @@ endif
 
 SRCTAR = $(PKG_NAME)-$(PKG_VERSION).tar.gz
 
-CONFIGURE = configure include/builddefs include/config.h \
+CONFIGURE = configure include/config.h include/config.h.in \
 	    aclocal.m4 config.guess config.sub install-sh ltmain.sh \
 	    m4/libtool.m4 m4/ltoptions.m4 m4/ltsugar.m4 m4/ltversion.m4 \
 	    m4/lt~obsolete.m4
 LSRCFILES = configure configure.ac aclocal.m4 README VERSION
 LDIRT = config.log .ltdep .dep config.status config.cache confdefs.h \
-	conftest* check.log check.time libtool
+	conftest* check.log check.time libtool include/builddefs
 
 ifeq ($(HAVE_BUILDDEFS), yes)
 LDIRT += $(SRCTAR)
@@ -79,8 +79,10 @@ clean:  # if configure hasn't run, nothing to clean
 endif
 
 configure: configure.ac
-	autoreconf --include=m4
-	libtoolize -i
+	libtoolize -cfi
+	aclocal -I m4
+	autoheader
+	autoconf
 
 include/builddefs include/config.h: configure
 	./configure \