a2ps configure error

[Andrews, Mark R]

Hello;
  I am trying to install a2ps on a HP C110 server running HPUX 10.2. I am
running configure as root and am getting an error which halts the
installation. The output from configure follows. Any help you can give me
would be greatly appreciated. I have searched the web and usenet for
solutions but so far have not found any.
Thanks,
Mark Andrews
Senior Computer Specialist
BCA-Long Beach Division
(562) 496-5144

> # cd a2ps-4.13
> # ./configure
> loading cache ./config.cache
> checking for a BSD compatible install... auxdir/install-sh -c
> checking whether build environment is sane... yes
> checking for mawk... no
> checking for gawk... no
> checking for nawk... no
> checking for awk... awk
> checking whether make sets ${MAKE}... yes
> checking for mawk... (cached) awk
> checking for gm4... no
> checking for gnum4... no
> checking for m4... /usr/bin/m4
> checking whether m4 supports frozen files... no
> checking for a BSD compatible install... auxdir/install-sh -c
> checking whether ln -s works... yes
> checking whether make sets ${MAKE}... (cached) yes
> checking for perl... /usr/contrib/bin/perl
> checking for perl5... (cached) /usr/contrib/bin/perl
> configure: warning:
> *** You don't seem to have perl5.003 or newer installed.
> *** Because of that, you may be unable to regenerate certain files
> *** if you modify the sources from which they are derived. 
> checking for gcc... no
> checking for cc... cc
> checking whether the C compiler (cc   ) works... yes
> checking whether the C compiler (cc   ) is a cross-compiler... no
> checking whether we are using GNU C... no
> checking whether cc accepts -g... no
> checking how to run the C preprocessor... cc -E
> checking dependency style of cc... hp
> checking for AIX... no
> checking for minix/config.h... no
> checking for POSIXized ISC... no
> checking how to run the C preprocessor... cc -E
> checking for cc option to accept ANSI C... no
> checking for function prototypes... no
> checking for ANSI C header files... yes
> checking for string.h... yes
> checking for bison... no
> checking for byacc... no
> checking how to suppress newlines using echo... escape
> checking for flex... no
> checking for lex... no
> checking for flex... ${SHELL} /a2ps-4.13/auxdir/missing --run flex
> checking for yywrap in -ll... yes
> checking lex output file root... ./configure[2167]: ${SHELL}:  not found.
> configure: error: cannot find output from ${SHELL}
> /a2ps-4.13/auxdir/missing --run flex; giving up
> 
> 
>