diff --git a/kio-extras-16.08.3-nfs-libtirpc.patch b/kio-extras-16.08.3-nfs-libtirpc.patch
new file mode 100644
index 0000000..3469618
--- /dev/null
+++ b/kio-extras-16.08.3-nfs-libtirpc.patch
@@ -0,0 +1,36 @@
+--- kio-extras-16.08.3/CMakeLists.txt	2016-11-07 06:21:48.000000000 -0600
++++ kio-extras-16.08.3/CMakeLists.txt	2017-02-02 09:45:43.808487100 -0600
+@@ -152,9 +152,11 @@ endif()
+    if(Gperf_FOUND AND KF5KHtml_FOUND)
+      add_subdirectory( man )
+    endif()
+-   check_include_files(rpc/rpc.h HAVE_RPC_RPC_H)
+-   add_feature_info("NFS kioslave" HAVE_RPC_RPC_H "The RPC library is needed to build the NFS kioslave")
+-   if(HAVE_RPC_RPC_H)
++   pkg_check_modules(TIRPC libtirpc)
++   include_directories(${TIRPC_INCLUDE_DIRS})
++   set(CMAKE_REQUIRED_LIBRARIES ${TIRPC_LIBRARIES})
++   add_feature_info("NFS kioslave" TIRPC_FOUND "The RPC library is needed to build the NFS kioslave")
++   if(TIRPC_FOUND)
+      add_subdirectory( nfs )
+    endif()
+ endif()
+--- kio-extras-16.08.3/nfs/CMakeLists.txt	2016-11-07 06:21:48.000000000 -0600
++++ kio-extras-16.08.3/nfs/CMakeLists.txt	2017-02-02 10:01:19.502229500 -0600
+@@ -10,6 +10,7 @@ if (NOT HAVE_XDR_U_INT64_T AND NOT HAVE_
+     message(FATAL_ERROR "Could not find 64-bit XDR datatype functions!")
+ endif (NOT HAVE_XDR_U_INT64_T AND NOT HAVE_XDR_UINT64_T AND NOT HAVE_XDR_U_HYPER AND NOT HAVE_XDR_U_LONGLONG_T)
+ 
++add_definitions(-D_DEFAULT_SOURCE)
+ if (HAVE_XDR_U_INT64_T)
+     add_definitions(-DHAVE_XDR_U_INT64_T)
+ endif (HAVE_XDR_U_INT64_T)
+@@ -26,7 +27,7 @@ endif (HAVE_XDR_U_LONGLONG_T)
+ add_definitions(-DTRANSLATION_DOMAIN=\"kio_nfs\")
+ 
+ add_library(kio_nfs MODULE kio_nfs.cpp nfsv2.cpp nfsv3.cpp rpc_nfs3_prot_xdr.c rpc_nfs2_prot_xdr.c)
+-target_link_libraries(kio_nfs KF5::KIOCore KF5::I18n Qt5::Network)
++target_link_libraries(kio_nfs KF5::KIOCore KF5::I18n Qt5::Network ${TIRPC_LIBRARIES})
+ set_target_properties(kio_nfs PROPERTIES OUTPUT_NAME "nfs")
+ 
+ install(TARGETS kio_nfs DESTINATION ${PLUGIN_INSTALL_DIR}/kf5/kio)
diff --git a/kio-extras.spec b/kio-extras.spec
index 7799743..4a9741b 100644
--- a/kio-extras.spec
+++ b/kio-extras.spec
@@ -8,7 +8,7 @@
 
 Name:    kio-extras
 Version: 17.12.0
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: Additional components to increase the functionality of KIO Framework
 
 License: GPLv2+
@@ -22,6 +22,11 @@ URL:     https://cgit.kde.org/%{name}.git
 %endif
 Source0: http://download.kde.org/%{stable}/applications/%{version}/src/%{name}-%{version}.tar.xz
 
+# patch to use libtirpc for RPC, from Cygwin Ports
+# should be upstreamable, considering that glibc's builtin RPC is obsolete
+# https://github.com/cygwinports/kf5-kio-extras/blob/master/16.08.3-nfs-libtirpc.patch
+Patch0: kio-extras-16.08.3-nfs-libtirpc.patch
+
 ## upstream patches
 
 # filter plugin provides
@@ -58,6 +63,7 @@ BuildRequires:  OpenEXR-devel
 BuildRequires:  openslp-devel
 BuildRequires:  perl-generators
 BuildRequires:  phonon-qt5-devel
+BuildRequires:  pkgconfig(libtirpc)
 BuildRequires:  qt5-qtbase-devel
 BuildRequires:  qt5-qtsvg-devel
 BuildRequires:  taglib-devel > 1.11
@@ -227,6 +233,9 @@ update-mime-database %{?fedora:-n} %{_datadir}/mime &> /dev/null || :
 
 
 %changelog
+* Wed Jan 10 2018 Kevin Kofler <Kevin@tigcc.ticalc.org> - 17.12.0-2
+- Build against libtirpc (#1532944), patch from Cygwin Ports
+
 * Thu Dec 28 2017 Rex Dieter <rdieter@fedoraproject.org> - 17.12.0-1
 - 17.12.0