Eliminate 'struct member is never used' cppcheck warnings in os_dep

* os_dep.c [SPARC && LINUX] (struct frame): Declare only if
SAVE_CALL_CHAIN.

diff --git a/os_dep.c b/os_dep.c
index 57cda3e..026aaf6 100644 (file)
--- a/os_dep.c
+++ b/os_dep.c
@@ -4500,6 +4500,7 @@ GC_API int GC_CALL GC_get_pages_executable(void)
 #  if defined(LINUX)
 #    include <features.h>
 
+#   if defined(SAVE_CALL_CHAIN)
      struct frame {
         long    fr_local[8];
         long    fr_arg[6];
@@ -4511,6 +4512,7 @@ GC_API int GC_CALL GC_get_pages_executable(void)
         long    fr_argd[6];
         long    fr_argx[0];
      };
+#   endif
 #  elif defined (DRSNX)
 #    include <sys/sparc/frame.h>
 #  elif defined(OPENBSD)