From 38af2f6a998968a49176216d2ec283f9f7bc69a0 Mon Sep 17 00:00:00 2001
From: malaterre <malaterre>
Date: Mon, 17 Jan 2005 21:41:47 +0000
Subject: [PATCH] ENH: Rework the stuff for HAVE_SA_LEN

---
 CMakeLists.txt     | 30 ++++++++++++++++++++++++++++++
 gdcmConfigure.h.in |  2 ++
 src/gdcmUtil.cxx   |  6 +++---
 3 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4ebaa055..82ea94e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,36 @@ IF("GDCM_COMPILER_HAS_FUNCTION" MATCHES "^GDCM_COMPILER_HAS_FUNCTION$")
   ENDIF(GDCM_COMPILER_HAS_FUNCTION)
 ENDIF("GDCM_COMPILER_HAS_FUNCTION" MATCHES "^GDCM_COMPILER_HAS_FUNCTION$")
 
+#-----------------------------------------------------------------------------
+# Test if os defines a lenght for sockaddr
+IF("GDCM_OS_HAVE_SA_LEN" MATCHES "^GDCM_OS_HAVE_SA_LEN$")
+  MESSAGE(STATUS "Checking if ifreq has a sa_len")
+  STRING(ASCII 35 POUND)
+  FILE(WRITE ${GDCM_BINARY_DIR}/gdcmTestHAVESALEN.c
+    "${POUND}include <sys/types.h>\n"
+    "${POUND}include <sys/socket.h>\n"
+    "int main() { struct sockaddr sa; sa.sa_len = 0; }")
+  TRY_COMPILE(GDCM_OS_HAVE_SA_LEN
+              ${GDCM_BINARY_DIR}/CMakeTmp/HaveSaLen
+              ${GDCM_BINARY_DIR}/gdcmTestHAVESALEN.c
+              OUTPUT_VARIABLE OUTPUT)
+  IF(GDCM_OS_HAVE_SA_LEN)
+    MESSAGE(STATUS "Checking if ifreq has a sa_len -- yes")
+    SET(GDCM_OS_HAVE_SA_LEN 1 CACHE INTERNAL "Support if ifreq has a sa_len")
+    WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeOutput.log
+      "Determining if ifreq has a sa_len"
+      "passed with the following output:\n"
+      "${OUTPUT}\n" APPEND)
+  ELSE(GDCM_OS_HAVE_SA_LEN)
+    MESSAGE(STATUS "Checking if ifreq has a sa_len -- no")
+    SET(GDCM_OS_HAVE_SA_LEN 0 CACHE INTERNAL "Support if ifreq has a sa_len")
+    WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log
+      "Determining if ifreq has a sa_len"
+      "failed with the following output:\n"
+      "${OUTPUT}\n" APPEND)
+  ENDIF(GDCM_OS_HAVE_SA_LEN)
+ENDIF("GDCM_OS_HAVE_SA_LEN" MATCHES "^GDCM_OS_HAVE_SA_LEN$")
+
 #-----------------------------------------------------------------------------
 # Build directory on which many applications depend
 SUBDIRS(
diff --git a/gdcmConfigure.h.in b/gdcmConfigure.h.in
index 061b6072..839fe32b 100644
--- a/gdcmConfigure.h.in
+++ b/gdcmConfigure.h.in
@@ -49,6 +49,8 @@
 #cmakedefine CMAKE_HAVE_NET_IF_DL_H
 #cmakedefine CMAKE_HAVE_NET_IF_ARP_H
 
+#define HAVE_SA_LEN @GDCM_OS_HAVE_SA_LEN@
+
 
 /*--------------------------------------------------------------------------*/
 /* GDCM Versioning                                                          */
diff --git a/src/gdcmUtil.cxx b/src/gdcmUtil.cxx
index 0f121c26..a23739c2 100644
--- a/src/gdcmUtil.cxx
+++ b/src/gdcmUtil.cxx
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmUtil.cxx,v $
   Language:  C++
-  Date:      $Date: 2005/01/17 17:26:55 $
-  Version:   $Revision: 1.106 $
+  Date:      $Date: 2005/01/17 21:41:48 $
+  Version:   $Revision: 1.107 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -561,7 +561,7 @@ int GetMacAddrSys ( unsigned char *addr )
    char buf[1024];
    int      n, i;
    unsigned char    *a;
-#ifdef AF_LINK
+#if defined(AF_LINK) && !(defined(SIOCGIFHWADDR) || !defined(SIOCGENADDR))
    struct sockaddr_dl *sdlp;
 #endif
 
-- 
2.45.1