From 83995cf89e0515b46d65badd09b641c988a5ea9d Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 4 Sep 2014 12:49:32 +0000
Subject: address Debian #758937: allow use of curl if it is really the gnutls
 version and libgnurl is unavailable

---
 configure.ac | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 24915a14e..687ea1e20 100644
--- a/configure.ac
+++ b/configure.ac
@@ -461,6 +461,27 @@ else
 	AM_CONDITIONAL(HAVE_LIBGNURL, false)
 fi
 
+# libcurl-gnutls
+LIBCURL_CHECK_CONFIG(,7.34.0,[curl=true],[curl=false])
+if test "x$curl" = xtrue
+then
+ AC_CHECK_HEADERS([curl/curl.h],
+   AC_CHECK_DECLS(CURLINFO_TLS_SESSION,[curl=true],[curl=false],[[#include <curl/curl.h>]]),
+   [curl=false])
+ # need libcurl-gnutls.so, everything else is not acceptable
+ AC_CHECK_LIB([curl-gnutls],[curl_easy_getinfo],,[curl=false])
+ # cURL must support CURLINFO_TLS_SESSION, version >= 7.34
+ 
+fi
+if test x$curl = xfalse
+then
+	AM_CONDITIONAL(HAVE_LIBCURL, false)
+	AC_MSG_WARN([GNUnet requires libcurl-gnutls  >= 7.34])
+else
+	AM_CONDITIONAL(HAVE_LIBCURL, true)
+	AC_DEFINE([HAVE_LIBCURL],[1],[Have CURL])
+fi
+
 
 # libidn
 AC_MSG_CHECKING([if Libidn can be used])
@@ -1197,7 +1218,7 @@ AC_ARG_ENABLE([malicious],
    [malicious=0
     enable_malicious=no])
 AC_MSG_RESULT($enable_malicious)
-AM_CONDITIONAL([ENABLE_MALICIOUS], [$malicious])
+AM_CONDITIONAL([ENABLE_MALICIOUS], [1=$malicious])
 AC_DEFINE_UNQUOTED([ENABLE_MALICIOUS], [$malicious],
                    [enable compilation of malicious code])
 
@@ -1552,10 +1573,16 @@ fi
 # libgnurl
 if test "x$gnurl" = "x0"
 then
-  AC_MSG_NOTICE([NOTICE: libgnurl not found.  http client support will not be compiled.])
-  AC_MSG_WARN([libgnurl not found.  hostlist daemon will not be compiled, and you probably WANT hostlist daemon])
+  if test "x$curl" = "x0"
+  then
+    AC_MSG_NOTICE([NOTICE: libgnurl not found.  http client support will not be compiled.])
+    AC_MSG_WARN([ERROR: libgnurl not found.  hostlist daemon will not be compiled, and you probably WANT the hostlist daemon])
+  else
+    AC_MSG_NOTICE([WARNING: libgnurl not found, trying to use libcurl-gnutls instead.])
+  fi
 fi
 
+
 # bluetooth
 if test "x$bluetooth" = "x0"
 then
-- 
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