Bugzilla Bug 187505

During emerge -ev system, flex refused to build because of this:
make[2]: Entering directory
`/var/tmp/portage/sys-devel/flex-2.5.33-r3/work/flex-2.5.33/doc'
for i in flex.1 ; do \
        help2man --name='fast lexical analyzer generator' --section=`echo
$i|rev|cut -f 1 -d .|rev` ../flex > $i ; \
        done
/bin/sh: line 1: help2man: command not found
make[2]: *** [flex.1] Error 127
make[2]: Leaving directory
`/var/tmp/portage/sys-devel/flex-2.5.33-r3/work/flex-2.5.33/doc'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory
`/var/tmp/portage/sys-devel/flex-2.5.33-r3/work/flex-2.5.33'
make: *** [all] Error 2


Reproducible: Always

Steps to Reproduce:
1.emerge -v1 sys-devel/flex #without help2man --> crash
2.emerge -v1 sys-apps/help2man
3.emerge -v1 sys-devel/flex #runs fine now

Actual Results:  
After installing help2man, flex builds fine

the manpage doesnt actually need to be regenerated

fixed in cvs