NDMP: Tweak #pragma settings.

We try to suppress some warnings in this code as its somewhat chatty
otherwise. But it seems #pragma are only available in later GCC versions
so try to adapt to that as much as possible.

src/ndmp/ndmos.h

@@ -100,9 +100,11 @@
  */
 #if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
 #pragma GCC diagnostic ignored "-Wunused-variable"
-#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #pragma GCC diagnostic ignored "-Wformat"
 #pragma GCC diagnostic ignored "-Wenum-compare"
+#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 460
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#endif
 #endif
 
 #if defined(__SUNPRO_C)

src/ndmp/ndmp2.x

@@ -50,8 +50,10 @@
 
 %#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
 %#pragma GCC diagnostic ignored "-Wunused-variable"
+%#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 470
 %#pragma GCC diagnostic ignored "-Wunprototyped-calls"
 %#endif
+%#endif
 
 %#ifndef NDMOS_OPTION_NO_NDMP2
 

src/ndmp/ndmp3.x

@@ -49,8 +49,10 @@
 
 %#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
 %#pragma GCC diagnostic ignored "-Wunused-variable"
+%#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 470
 %#pragma GCC diagnostic ignored "-Wunprototyped-calls"
 %#endif
+%#endif
 
 %#ifndef NDMOS_OPTION_NO_NDMP3
 

src/ndmp/ndmp4.x

@@ -49,8 +49,10 @@
 
 %#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
 %#pragma GCC diagnostic ignored "-Wunused-variable"
+%#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 470
 %#pragma GCC diagnostic ignored "-Wunprototyped-calls"
 %#endif
+%#endif
 
 %#ifndef NDMOS_OPTION_NO_NDMP4
 

src/ndmp/ndmp9.x

@@ -91,8 +91,10 @@
 
 %#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
 %#pragma GCC diagnostic ignored "-Wunused-variable"
+%#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 470
 %#pragma GCC diagnostic ignored "-Wunprototyped-calls"
 %#endif
+%#endif
 
 const NDMP9VER = 9;