include/sys/syscall.h: System definitions should depend on CONFIG_LIB_SYSCALL not CONFIG_NUTTX_KERNEL

include/sys/syscall.h

@@ -47,9 +47,7 @@
 #  include <stdint.h>
 #endif
 
-/* The content of this file is only meaningful for the case of a kernel build. */
-
-#ifdef CONFIG_NUTTX_KERNEL
+#ifdef CONFIG_LIB_SYSCALL
 
 /****************************************************************************
  * Pre-processor Definitions

include/syscall.h

@@ -58,7 +58,8 @@
 
 #ifdef __cplusplus
 #define EXTERN extern "C"
-extern "C" {
+extern "C"
+{
 #else
 #define EXTERN extern
 #endif