prevent configure picking up help2man

flex/flex.spec

@@ -38,7 +38,7 @@ Distribution: OpenPKG [CORE]
 Group:        Language
 License:      BSD
 Version:      %{V_release}
-Release:      20030729
+Release:      20030730
 
 #   package options
 %option       with_beta  no
@@ -90,6 +90,7 @@ AutoReqProv:  no
     ( cd flex-%{V_beta}
       CC="%{l_cc}" \
       CFLAGS="%{l_cflags -O}" \
+      HELP2MAN=`type -P true` \
       ./configure \
           --prefix=%{l_prefix} \
           --disable-nls