- getauxval test for ppc64 linux compatibility.

git-svn-id: file:///svn/unbound/trunk@3293 be551aaa-1e26-0410-a405-d3ace91eadb9

compat/getentropy_linux.c

@@ -474,22 +474,24 @@ getentropy_fallback(void *buf, size_t len)
 
 			HD(cnt);
 		}
-#ifdef AT_RANDOM
+#ifdef HAVE_GETAUXVAL
+#  ifdef AT_RANDOM
 		/* Not as random as you think but we take what we are given */
 		p = (char *) getauxval(AT_RANDOM);
 		if (p)
 			HR(p, 16);
-#endif
-#ifdef AT_SYSINFO_EHDR
+#  endif
+#  ifdef AT_SYSINFO_EHDR
 		p = (char *) getauxval(AT_SYSINFO_EHDR);
 		if (p)
 			HR(p, pgs);
-#endif
-#ifdef AT_BASE
+#  endif
+#  ifdef AT_BASE
 		p = (char *) getauxval(AT_BASE);
 		if (p)
 			HD(p);
-#endif
+#  endif
+#endif /* HAVE_GETAUXVAL */
 
 		SHA512_Final(results, &ctx);
 		memcpy((char*)buf + i, results, min(sizeof(results), len - i));

config.h.in

@@ -146,6 +146,9 @@
 /* Whether getaddrinfo is available */
 #undef HAVE_GETADDRINFO
 
+/* Define to 1 if you have the `getauxval' function. */
+#undef HAVE_GETAUXVAL
+
 /* Define to 1 if you have the `getentropy' function. */
 #undef HAVE_GETENTROPY
 

configure

@@ -18254,6 +18254,17 @@ _ACEOF
 
 fi
 
+done
+
+				for ac_func in getauxval
+do :
+  ac_fn_c_check_func "$LINENO" "getauxval" "ac_cv_func_getauxval"
+if test "x$ac_cv_func_getauxval" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GETAUXVAL 1
+_ACEOF
+
+fi
 done
 
 				{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5

configure.ac

@@ -1021,6 +1021,7 @@ if test "$USE_NSS" = "no"; then
 					AC_LIBOBJ(sha512)
 				])
 				AC_CHECK_HEADERS([sys/sysctl.h],,, [AC_INCLUDES_DEFAULT])
+				AC_CHECK_FUNCS([getauxval])
 				AC_SEARCH_LIBS([clock_gettime], [rt])
 			;;
 			esac

doc/Changelog

@@ -1,3 +1,6 @@
+5 January 2015: Wouter
+	- getauxval test for ppc64 linux compatibility.
+
 9 December 2014: Wouter
 	- svn trunk has 1.5.2 in development.
 	- config.guess and config.sub update from libtoolize.