From: g0dil <g0dil@270642c3-0616-0410-b53a-bc976706d245>
Date: Fri, 20 Aug 2010 06:40:25 +0000 (+0000)
Subject: Packets/80211Bundle: Fix missing le16toh/le32toh on older libc
X-Git-Url: http://g0dil.de/git?p=senf.git;a=commitdiff_plain;h=5083ed2a2fe087df2f981b3f66eaf0fb130243eb

Packets/80211Bundle: Fix missing le16toh/le32toh on older libc

git-svn-id: https://svn.berlios.de/svnroot/repos/senf/trunk@1694 270642c3-0616-0410-b53a-bc976706d245
---

diff --git a/SConfigure b/SConfigure
index 5d7dae2..40382e8 100644
--- a/SConfigure
+++ b/SConfigure
@@ -69,6 +69,37 @@ def CheckValgrindWildcards(context):
     context.Result( ret[0] )
     return ret[0]
 
+@env.ConfTest()
+def CheckExpression(context, name, expression, header="", language="C"):
+    import SCons.Conftest
+
+    lang, suffix, msg = SCons.Conftest._lang2suffix(language)
+    if msg:
+        context.Message("Cannot check for header file %s: \n" % header_name)
+        context.Result(msg)
+        return False
+
+    text = ("#include <assert.h>\n"
+            "%s\n"
+            "int main() {\n"
+            "%s;\n"
+            "return 0;\n"
+            "}\n") % (header, expression)
+
+    context.Message("Checking for valid %s expression %s... " % (lang, expression))
+    ret = context.TryLink(text, suffix)
+    context.Result(ret)
+    if ret:
+        import re
+        key = name.upper()
+        key = re.sub('[^A-Z0-9_]', '_', key)
+        context.sconf.Define("HAVE_%s" % key,
+                             1,
+                             "Define to 1 if the expression `%s' is valid on your system"
+                             % expression)
+
+    return ret
+
 ###########################################################################
 
 conf = env.Configure(clean=False, help=False, config_h="#/senf/autoconf.hh")
@@ -85,6 +116,10 @@ res = conf.CheckTempBufferStrategy()
 
 # Standard library stuff
 res = conf.CheckFunc("timerfd_create")
+res = conf.CheckExpression("le16toh", "le16toh(0)",
+                           "#include <senf/Packets/80211Bundle/radiotap/platform.h>")
+res = conf.CheckExpression("le32toh", "le32toh(0)",
+                           "#include <senf/Packets/80211Bundle/radiotap/platform.h>")
 res = conf.CheckSTLCopyN(); \
     conf.env.Fail(condition=not res, message="No 'copy_n' implementation found")
 
diff --git a/senf/Packets/80211Bundle/SConscript b/senf/Packets/80211Bundle/SConscript
index 6c532af..6ea2d44 100644
--- a/senf/Packets/80211Bundle/SConscript
+++ b/senf/Packets/80211Bundle/SConscript
@@ -7,4 +7,5 @@ import SENFSCons
 
 SConscript(env.Glob("*/SConscript"))
 
-SENFSCons.AutoPacketBundle(env, '80211Bundle', subdirs=['radiotap'])
+SENFSCons.AutoPacketBundle(env, '80211Bundle',
+                           subdirs=['radiotap'], exclude=['radiotap/radiotap.c'])
diff --git a/senf/Packets/80211Bundle/radiotap.c b/senf/Packets/80211Bundle/radiotap.c
new file mode 100644
index 0000000..f176a55
--- /dev/null
+++ b/senf/Packets/80211Bundle/radiotap.c
@@ -0,0 +1,44 @@
+// $Id$
+//
+// Copyright (C) 2010
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+# include <senf/autoconf.hh>
+#
+# ifndef HAVE_LE16TOH
+#     define le16toh(x) (x)
+# endif
+#
+# ifndef HAVE_LE32TOH
+#     define le32toh(x) (x)
+# endif
+#
+# include "radiotap/radiotap.c"
+
+
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End:
diff --git a/senf/Packets/80211Bundle/radiotap/SConscript b/senf/Packets/80211Bundle/radiotap/SConscript
index 0b12252..b6757d5 100644
--- a/senf/Packets/80211Bundle/radiotap/SConscript
+++ b/senf/Packets/80211Bundle/radiotap/SConscript
@@ -4,7 +4,6 @@ Import('env')
 import SENFSCons
 
 env.SetDefault(
-    RADIOTAP_FILES = env.Glob("*.h") + env.Glob("*.c"),
     RADIOTAP_URL = 'http://git.sipsolutions.net/radiotap.git',
     )
 
@@ -12,9 +11,9 @@ env.PhonyTarget(
     'update-radiotap', [],
     [ Delete('$GITDIR'),
       'git clone $RADIOTAP_URL $GITDIR',
-      'cp $_RADIOTAP_FILES $HERE',
+      'cp $RADIOTAP_FILES $HERE',
       Delete('$GITDIR') ],
-    HERE            = env.Dir('.'),
-    GITDIR          = env.Dir('radiotap.git'),
-    _RADIOTAP_FILES = [ env.Dir('radiotap.git').File(f)
-                        for f in env.Flatten(env.subst_list('$RADIOTAP_FILES')) ])
+    HERE           = env.Dir('.'),
+    GITDIR         = env.Dir('radiotap.git'),
+    RADIOTAP_FILES = [ env.Dir('radiotap.git').File(f)
+                       for f in env.Glob("*.h") + env.Glob("*.c") ])