diff --git a/libmicrohttpd-0.9.66-fix-gnutls-dependency.patch b/libmicrohttpd-0.9.66-fix-gnutls-dependency.patch
new file mode 100644
index 0000000..4e2bdc9
--- /dev/null
+++ b/libmicrohttpd-0.9.66-fix-gnutls-dependency.patch
@@ -0,0 +1,31 @@
+From b84ee1fa41c53c43aa7ed1583c36af5cb7c77a0f Mon Sep 17 00:00:00 2001
+From: Christian Grothoff <christian@grothoff.org>
+Date: Fri, 2 Aug 2019 15:43:44 +0200
+Subject: [PATCH] trying to fix #5806
+References: https://bugs.gnunet.org/view.php?id=5806
+
+---
+ src/microhttpd/daemon.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/src/microhttpd/daemon.c b/src/microhttpd/daemon.c
+index bf01ba9b..a8fc98c6 100644
+--- a/src/microhttpd/daemon.c
++++ b/src/microhttpd/daemon.c
+@@ -2536,7 +2536,12 @@ internal_add_connection (struct MHD_Daemon *daemon,
+   else
+     {
+ #ifdef HTTPS_SUPPORT
+-      gnutls_init_flags_t flags;
++#if (GNUTLS_VERSION_NUMBER+0 >= 0x030500)
++      gnutls_init_flags_t
++#else
++      unsigned int
++#endif
++        flags;
+ 
+       flags = GNUTLS_SERVER;
+ #if (GNUTLS_VERSION_NUMBER+0 >= 0x030402)
+-- 
+2.16.4
+
diff --git a/libmicrohttpd.changes b/libmicrohttpd.changes
index deb9e30..df19c34 100644
--- a/libmicrohttpd.changes
+++ b/libmicrohttpd.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Aug  2 13:53:59 UTC 2019 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- fix build with SLE 12 with older GnuTLS:
+  * libmicrohttpd-0.9.66-fix-gnutls-dependency.patch
+
 -------------------------------------------------------------------
 Fri Aug  2 10:53:30 UTC 2019 - Andreas Stieger <andreas.stieger@gmx.de>
 
diff --git a/libmicrohttpd.spec b/libmicrohttpd.spec
index abbd245..51be710 100644
--- a/libmicrohttpd.spec
+++ b/libmicrohttpd.spec
@@ -31,13 +31,12 @@ URL:            https://www.gnu.org/software/libmicrohttpd/
 Source0:        https://ftp.gnu.org/gnu/libmicrohttpd/%{name}-%{version}.tar.gz
 Source1:        https://ftp.gnu.org/gnu/libmicrohttpd/%{name}-%{version}.tar.gz.sig
 Source2:        https://savannah.gnu.org/project/memberlist-gpgkeys.php?group=%{name}&download=1#/%{name}.keyring
+Patch0:         libmicrohttpd-0.9.66-fix-gnutls-dependency.patch
 BuildRequires:  libtool
 BuildRequires:  makeinfo
 BuildRequires:  pkgconfig >= 0.9.0
 BuildRequires:  socat
-# see https://bugs.gnunet.org/view.php?id=5806
-# BuildRequires:  pkgconfig(gnutls) >= 2.8.6
-BuildRequires:  pkgconfig(gnutls) >= 3.5.0
+BuildRequires:  pkgconfig(gnutls) >= 2.8.6
 BuildRequires:  pkgconfig(libcurl) >= 7.16.4
 
 %description
@@ -90,6 +89,7 @@ Headers, pkg-config files, so link and other development files for %{name}
 
 %prep
 %setup -q
+%patch0 -p1
 
 %build
 %configure \