In cursor ./configure in dansguardian ( textus impleo spurcamen pro Linux), EGO got sequens erroris configure: erroris: pcre- mando non instituo!
configure: admonitio Cache variable ac_cv_prog_PCRE postulo a nuper.
. solutio, ut usitas, est simplex:

Install pcre-devel. In RedHat Fedora ratio ut would exsisto:
yum install pcre-devel