autoheader will update ../libtool-2.4.6/libltdl/config-h.in which
autoconf needs, so there comes a race sometimes as below:
| configure.ac:45: error: required file 'config-h.in' not found
| touch '../libtool-2.4.6/libltdl/config-h.in'
So make sure autoheader run before autoconf to avoid this race.
* Makefile.am: Have $(lt_configure) depend on $(lt_config_h_in).
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
$(lt_aclocal_m4): $(lt_aclocal_m4_deps)
$(AM_V_GEN)cd '$(srcdir)/$(ltdl_dir)' && $(ACLOCAL) -I ../m4
-$(lt_configure): $(lt_configure_deps)
+$(lt_configure): $(lt_configure_deps) $(lt_config_h_in)
$(AM_V_GEN)cd '$(srcdir)/$(ltdl_dir)' && $(AUTOCONF)
$(lt_config_h_in): $(lt_configure_deps)