build-sys: s/HAVE_SMACK/ENABLE_SMACK/

Same justification as for HAVE_UTMP.

src/basic/build.h

@@ -49,7 +49,7 @@
 #define _IMA_FEATURE_ "-IMA"
 #endif
 
-#if HAVE_SMACK
+#if ENABLE_SMACK
 #define _SMACK_FEATURE_ "+SMACK"
 #else
 #define _SMACK_FEATURE_ "-SMACK"

src/basic/smack-util.c

@@ -35,7 +35,7 @@
 #include "string-table.h"
 #include "xattr-util.h"
 
-#if HAVE_SMACK
+#if ENABLE_SMACK
 bool mac_smack_use(void) {
         static int cached_use = -1;