Fix non-Linux builds

Various tools are Linuxish and should thus only attempted to build on
Linux only. Some features are also Linux-only.

Also, libresolv is used on all GNU platforms, notably GNU/Hurd and
GNU/kfreeBSD.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/util-linux/swaponoff.c b/util-linux/swaponoff.c
index e2ff4b5cc..567869cc7 100644
--- a/util-linux/swaponoff.c
+++ b/util-linux/swaponoff.c
@@ -9,6 +9,7 @@
 //config:config SWAPON
 //config:       bool "swapon (15 kb)"
 //config:       default y
+//config:       select PLATFORM_LINUX
 //config:       help
 //config:       Once you have created some swap space using 'mkswap', you also need
 //config:       to enable your swap space with the 'swapon' utility. The 'swapoff'
@@ -35,6 +36,7 @@
 //config:config SWAPOFF
 //config:       bool "swapoff (14 kb)"
 //config:       default y
+//config:       select PLATFORM_LINUX
 //config:
 //config:config FEATURE_SWAPONOFF_LABEL
 //config:       bool "Support specifying devices by label or UUID"