screen: bump to 4.2.1
xz: fix for crosscompilation
ncurses: fix for cross-compilation
nano: fix for cross-compilation
file: fix for cross-compilation
flex: fix for cross-compilation
bison: fix for cross-compilation
gzip: fix for cross-compilation
htop: fix for cross-compilation
butch template: always define HOSTCC
butch-unlink/relocate: make usable for crosscompiled rootfs
m4: fix for cross-compilation
libpcap: fix for cross-compilation and -flto in CFLAGS
dropbear: fix for cross-compilation
extlinux: fix for cross-compilation
su: build fix for case when CC contains multiple components
man: build fix for case when CC contains multiple components
tree: build fix for case when CC contains multiple components
e2fprogs: fix for cross-compilation
less: fix for cross-compilation