configure.in: Check for "htonll".

The first patch adds support to check if the htonl and htonll functions
(which are used in AIX port) are available in configure. Until now the
AIX port used these functions without perform any existence test.

Signed-off-by: Florian Forster <octo@leeloo.lan.home.verplant.org>

diff --git a/configure.in b/configure.in
index 5daf533d139e06a0b3c31849489a37823aec149f..f46a3624518a9ef95373bc9af4a66fa7c0156c5e 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -906,6 +906,27 @@ if test "x$have_getmntent" = "xgen"; then
                  [Define if the function getmntent exists. It's the version from libgen.])
 fi
 
+# Check for htonll
+AC_MSG_CHECKING([if have htonll defined])
+
+    have_htonll="no"
+    AC_RUN_IFELSE([
+       AC_LANG_PROGRAM([
+#include <sys/types.h>
+#include <netinet/in.h>
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h> 
+#endif
+       ], [
+          return htonll(0);
+       ])
+    ], [
+      have_htonll="yes"
+      AC_DEFINE(HAVE_HTONLL, 1, [Define if the function htonll exists.])
+    ])
+ 
+AC_MSG_RESULT([$have_htonll])
+
 # Check for structures
 AC_CHECK_MEMBERS([struct if_data.ifi_ibytes, struct if_data.ifi_opackets, struct if_data.ifi_ierrors],
        [AC_DEFINE(HAVE_STRUCT_IF_DATA, 1, [Define if struct if_data exists and is usable.])],

diff --git a/src/common.c b/src/common.c
index 7c2c30eccf38b1bcc498264727679b6be3270031..b9e41b1d7bc17ad5477b98d16f953fb995063cfe 100644 (file)
--- a/src/common.c
+++ b/src/common.c
@@ -659,6 +659,7 @@ long long get_kstat_value (kstat_t *ksp, char *name)
 }
 #endif /* HAVE_LIBKSTAT */
 
+#ifndef HAVE_HTONLL
 unsigned long long ntohll (unsigned long long n)
 {
 #if BYTE_ORDER == BIG_ENDIAN
@@ -676,6 +677,7 @@ unsigned long long htonll (unsigned long long n)
        return (((unsigned long long) htonl (n)) << 32) + htonl (n >> 32);
 #endif
 } /* unsigned long long htonll */
+#endif /* HAVE_HTONLL */
 
 #if FP_LAYOUT_NEED_NOTHING
 /* Well, we need nothing.. */

diff --git a/src/common.h b/src/common.h
index 6682e1c852ffd3328253f347a54fa23de78f630b..8a9f33575b8090eac4dbe56af077af5b68fd7f05 100644 (file)
--- a/src/common.h
+++ b/src/common.h
@@ -236,8 +236,10 @@ int get_kstat (kstat_t **ksp_ptr, char *module, int instance, char *name);
 long long get_kstat_value (kstat_t *ksp, char *name);
 #endif
 
+#ifndef HAVE_HTONLL
 unsigned long long ntohll (unsigned long long n);
 unsigned long long htonll (unsigned long long n);
+#endif
 
 #if FP_LAYOUT_NEED_NOTHING
 # define ntohd(d) (d)