GSview uses netscape to browse through the online help. BLFS does not install Netscape, but has other browsers from which to choose. Simply edit srcunx/gvxreg.c using the following sed script with your browsers executable file name substituting for [browser]: mv srcunx/gvxreg.c srcunx/gvxreg.old && cat srcunx/gvxreg.old | sed s/netscape/[browser]/ > srcunx/gvxreg.c Install GSview by running the following commands: patch -Np1 -i ../gsview-&gsview-version;-gvx.patch && sed 's|GSVIEW_ROOT=/usr/local|GSVIEW_ROOT=/usr|' \   srcunx/unx.mak > Makefile && make && make install