- Fix failure to build on arm64 with no sbrk.

git-svn-id: file:///svn/unbound/trunk@3911 be551aaa-1e26-0410-a405-d3ace91eadb9

configure

@@ -18966,8 +18966,16 @@ fi
 done
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sbrk" >&5
-$as_echo_n "checking for sbrk... " >&6; }
+for ac_func in sbrk
+do :
+  ac_fn_c_check_func "$LINENO" "sbrk" "ac_cv_func_sbrk"
+if test "x$ac_cv_func_sbrk" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SBRK 1
+_ACEOF
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if sbrk is not deprecated" >&5
+$as_echo_n "checking if sbrk is not deprecated... " >&6; }
 # catch the warning of deprecated sbrk
 old_cflags="$CFLAGS"
 CFLAGS="$CFLAGS -Werror"
@@ -18993,6 +19001,10 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 CFLAGS="$old_cflags"
 
+fi
+done
+
+
 # check if setreuid en setregid fail, on MacOSX10.4(darwin8).
 if echo $build_os | grep darwin8 > /dev/null; then
 

configure.ac

@@ -1147,7 +1147,8 @@ AC_CHECK_FUNCS([tzset sigprocmask fcntl getpwnam endpwent getrlimit setrlimit se
 AC_CHECK_FUNCS([setresuid],,[AC_CHECK_FUNCS([setreuid])])
 AC_CHECK_FUNCS([setresgid],,[AC_CHECK_FUNCS([setregid])])
 
-AC_MSG_CHECKING([for sbrk])
+AC_CHECK_FUNCS([sbrk],[
+AC_MSG_CHECKING([if sbrk is not deprecated])
 # catch the warning of deprecated sbrk
 old_cflags="$CFLAGS"
 CFLAGS="$CFLAGS -Werror"
@@ -1159,6 +1160,7 @@ int main(void) { void* cur = sbrk(0); printf("%u\n", (unsigned)(size_t)((char*)c
 	AC_DEFINE(HAVE_SBRK, 1, [define if you have the sbrk() call])
     ], [AC_MSG_RESULT(no)])
 CFLAGS="$old_cflags"
+])
 
 # check if setreuid en setregid fail, on MacOSX10.4(darwin8).
 if echo $build_os | grep darwin8 > /dev/null; then

doc/Changelog

@@ -1,3 +1,6 @@
+31 October 2016: Wouter
+	- Fix failure to build on arm64 with no sbrk.
+
 28 October 2016: Wouter
 	- Patch for server.num.zero_ttl stats for count of expired replies,
 	  from Pavel Odintsov.