Allow to build SELinux even /sbun/selinuxenabled fails

Author: oech3

GNUmakefile

@@ -69,17 +69,15 @@ TOYBOX_SRC  := $(TOYBOX_ROOT)/toybox-$(TOYBOX_VER)
 #------------------------------------------------------------------------
 OS ?= $(shell uname -s)
 
-ifdef SELINUX_ENABLED
-	override SELINUX_ENABLED := 0
-# Now check if we should enable it (only on non-Windows)
-	ifneq ($(OS),Windows_NT)
-		ifeq ($(shell if [ -x /sbin/selinuxenabled ] && /sbin/selinuxenabled 2>/dev/null; then echo 0; else echo 1; fi),0)
-			override SELINUX_ENABLED := 1
-$(info /sbin/selinuxenabled successful)
-	    else
-$(info SELINUX_ENABLED=1 but /sbin/selinuxenabled failed)
-		endif
-	endif
+# Allow to build SELinux even /sbun/selinuxenabled fails.
+ifundef SELINUX_ENABLED
+	# Non Linux does not have libselinux. So SELINUX_ENABLED=0
+	SELINUX_ENABLED := $(shell pkgconf --libs libselinux > /dev/null 2>&1; echo $$((!$$?)))
+    ifeq ($(SELINUX_ENABLED), 1)
+        $(info libselinux found. Enabling SELinux.)
+    else
+        $(info libselinux was not found.)
+    endif
 endif
 
 # Possible programs