user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

user/include/mlibc/options/bsd/meson.build

@@ -0,0 +1,37 @@
+if not bsd_option
+	subdir_done()
+endif
+
+libc_sources += files(
+	'generic/arpa-nameser.cpp',
+	'generic/ether.cpp',
+	'generic/getopt.cpp',
+	'generic/bsd_stdlib.cpp',
+	'generic/pty.cpp',
+)
+
+if not no_headers
+	install_headers(
+		'include/fstab.h',
+		'include/pty.h',
+		'include/utmp.h',
+	)
+	install_headers(
+		'include/arpa/nameser.h',
+		'include/arpa/nameser_compat.h',
+		subdir: 'arpa'
+	)
+	install_headers(
+		'include/sys/queue.h',
+		subdir: 'sys'
+	)
+	install_headers(
+		'include/netinet/ether.h',
+		subdir: 'netinet'
+	)
+	install_headers(
+		'include/bits/bsd/bsd_stdlib.h',
+		'include/bits/bsd/bsd_unistd.h',
+		subdir: 'bits/bsd'
+	)
+endif