build system: drop PLATFORM_LINUX

PLATFORM_LINUX is a hidden configuration option which is disabled by
default and enabled at over a hundred locations for features that are
deemed to be Linux specific.

The only effect of PLATFORM_LINUX is to control compilation of
libbb/match_fstype.c.  This file is only needed by mount and umount.

Remove all references to PLATFORM_LINUX and compile match_fstype.c
if mount or umount is enabled.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index ab50f4a28..f61da9de5 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -109,7 +109,6 @@
 //config:       bool "Linux kernel printk buffer support"
 //config:       default y
 //config:       depends on SYSLOGD
-//config:       select PLATFORM_LINUX
 //config:       help
 //config:       When you enable this feature, the syslogd utility will
 //config:       write system log message to the Linux kernel's printk buffer.