diff --git a/Config.in b/Config.in
index 546e8249cc..65b6dd86aa 100644
--- a/Config.in
+++ b/Config.in
@@ -13,6 +13,14 @@ config HAVE_DOT_CONFIG
 	bool
 	default y
 
+HOST_OS := $(shell, uname)
+
+config HOST_OS_LINUX
+	def_bool $(shell, ./config/check-uname.sh Linux)
+
+config HOST_OS_MACOS
+	def_bool $(shell, ./config/check-uname.sh Darwin)
+
 source "target/Config.in"
 
 source "config/Config-images.in"
diff --git a/config/check-uname.sh b/config/check-uname.sh
new file mode 100755
index 0000000000..1f1bf9ee07
--- /dev/null
+++ b/config/check-uname.sh
@@ -0,0 +1 @@
+[ "$(uname)" = "$1" ] && echo y || echo n