Compiling

[Bacchus <Bacchus cyber-wizard com>]

Hi. I am attempting to compile Balsa-0.4.6.2 but am getting the
following error:

misc.c: In function 'readfile':
misc.c:169: 'errno' undeclared (First use this function)
misc.c:169: (Each undeclared identifier is reported only once
misc.c:169: for each function it appears in.)
misc.c:169: 'EAGAIN' undeclared (First use this function)
misc:c:169: 'EINTR' undeclared (First use this function)
make[2]: *** [misc.o] Error 1
make[2]: Leaving directory '/usr/src/balsa-0.4.6.2/libbalsa'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/usr/src/balsa-0.4.6.2'
make: ***[all-recursive-am] Error2

RedHat 5.2, glib-1.2.0-1, gtk+-1.2.0-1, imlib-1.9.4-1,
gnome-libs-1.0.1-1, and libproplist-0.8.3-2 installed. Any suggestions?

TIA,
Bacchus