Fix platform check for `-A` CoreSight mode

Signed-off-by: Akira Moroo <retrage01@gmail.com>
diff --git a/src/afl-analyze.c b/src/afl-analyze.c
index 6e1a9e7..bc562c1 100644
--- a/src/afl-analyze.c
+++ b/src/afl-analyze.c
@@ -995,14 +995,12 @@
 
       case 'A':                                           /* CoreSight mode */
 
+#if !defined(__aarch64__) || !defined(__linux__)
+        FATAL("-A option is not supported on this platform");
+#endif
+
         if (cs_mode) { FATAL("Multiple -A options not supported"); }
 
-        if (!(__aarch64__ && __linux__)) {
-
-          FATAL("-A option is not supported on this platform");
-
-        }
-
         cs_mode = 1;
         fsrv.cs_mode = cs_mode;
         break;
diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index e6d9508..44363c2 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -829,14 +829,12 @@
 
       case 'A':                                           /* CoreSight mode */
 
+  #if !defined(__aarch64__) || !defined(__linux__)
+        FATAL("-A option is not supported on this platform");
+  #endif
+
         if (afl->fsrv.cs_mode) { FATAL("Multiple -A options not supported"); }
 
-        if (!(__aarch64__ && __linux__)) {
-
-          FATAL("-A option is not supported on this platform");
-
-        }
-
         afl->fsrv.cs_mode = 1;
 
         break;
diff --git a/src/afl-showmap.c b/src/afl-showmap.c
index 0e7d9df..899baaa 100644
--- a/src/afl-showmap.c
+++ b/src/afl-showmap.c
@@ -1067,14 +1067,12 @@
        * undocumenetd feature "Another afl-cmin specific feature." */
       case 'P':                                           /* CoreSight mode */
 
+#if !defined(__aarch64__) || !defined(__linux__)
+        FATAL("-P option is not supported on this platform");
+#endif
+
         if (fsrv->cs_mode) { FATAL("Multiple -P options not supported"); }
 
-        if (!(__aarch64__ && __linux__)) {
-
-          FATAL("-P option is not supported on this platform");
-
-        }
-
         fsrv->cs_mode = true;
         break;
 
diff --git a/src/afl-tmin.c b/src/afl-tmin.c
index 110beed..22383a4 100644
--- a/src/afl-tmin.c
+++ b/src/afl-tmin.c
@@ -1038,14 +1038,12 @@
 
       case 'A':                                           /* CoreSight mode */
 
+#if !defined(__aarch64__) || !defined(__linux__)
+        FATAL("-A option is not supported on this platform");
+#endif
+
         if (fsrv->cs_mode) { FATAL("Multiple -A options not supported"); }
 
-        if (!(__aarch64__ && __linux__)) {
-
-          FATAL("-A option is not supported on this platform");
-
-        }
-
         fsrv->cs_mode = 1;
         break;