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, 2 deletions

diff --git a/util-linux/freeramdisk.c b/util-linux/freeramdisk.c
index d27113d97..309169d25 100644
--- a/util-linux/freeramdisk.c
+++ b/util-linux/freeramdisk.c
@@ -11,7 +11,6 @@
 //config:config FDFLUSH
 //config:       bool "fdflush (1.3 kb)"
 //config:       default y
-//config:       select PLATFORM_LINUX
 //config:       help
 //config:       fdflush is only needed when changing media on slightly-broken
 //config:       removable media drives. It is used to make Linux believe that a
@@ -24,7 +23,6 @@
 //config:config FREERAMDISK
 //config:       bool "freeramdisk (1.3 kb)"
 //config:       default y
-//config:       select PLATFORM_LINUX
 //config:       help
 //config:       Linux allows you to create ramdisks. This utility allows you to
 //config:       delete them and completely free all memory that was used for the