It only applies to linux, does not apply to freebsd
Warning: it is not suggested! It is better if you install libx11-dev. And you can uninstall it after compiling.
When you compile mydm, libx11-dev may be needed because mydm use some headers of Xlib's.
But after compiling mydm, libx11-dev is not needed anymore.
And, if you don't want install to libx11-dev in compiling time, you can run this before make
./mkconfig.sh --own-libx11dev --enable-xsec
But if you do it, you may get a error when make
/usr/bin/ld: cannot find -lX11
you can use ./lnlibx11.sh to solve it, for example:
$ ./mkconfig.sh --own-libx11dev --enable-xsec <= use the config
$ make <= build mydm
CC mydm.o
CC tools.o
CC su.o
LD mydm
/usr/bin/ld: cannot find -lX11 <= you get an error
collect2: error: ld returned 1 exit status
Makefile:17: recipe for target 'mydm' failed
make: *** [mydm] Error 1
$ ./lnlibx11.sh <= just run it
Which libX11 shared object you want to link?
0: /usr/lib/arm-linux-gnueabihf/libX11.so.6
Your choose (default 0): 0 <= choose a libX11.so
(on 64bit system you may
get two resaults)
$ make <= and then make again
LD mydm
STRIP mydm
$ ldd mydm <= you can check it by ldd
libX11.so.6 => /usr/lib/arm-linux-gnueabihf/libX11.so.6 (0xb6e4f000)
libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6d61000)
......
Tip: lnlibx11.sh does not create or modify files outside the source directory.