Fix configure testing of poll.h and sys/poll.h when recursively calling configure for subdirs

gdb/gdb.spec

@@ -33,7 +33,7 @@ Distribution: OpenPKG [BASE]
 Group:        Development
 License:      GPL
 Version:      6.0
-Release:      20031006
+Release:      20031008
 
 #   list of sources
 Source0:      ftp://ftp.gnu.org/gnu/gdb/gdb-%{version}.tar.gz
@@ -60,7 +60,7 @@ AutoReqProv:  no
     ./configure \
         --prefix=%{l_prefix} \
         --disable-nls
-    %{l_make} %{l_mflags -O}
+    %{l_make} %{l_mflags -O} configure-gdb all
 
 %install
     rm -rf $RPM_BUILD_ROOT