diff --git a/kdelibs-4.13.2-glibc_DEFAULT_SOURCE.patch b/kdelibs-4.13.2-glibc_DEFAULT_SOURCE.patch
new file mode 100644
index 0000000..666fa1e
--- /dev/null
+++ b/kdelibs-4.13.2-glibc_DEFAULT_SOURCE.patch
@@ -0,0 +1,30 @@
+diff -up kdelibs-4.13.2/cmake/modules/FindKDE4Internal.cmake._DEFAULT_SOURCE kdelibs-4.13.2/cmake/modules/FindKDE4Internal.cmake
+--- kdelibs-4.13.2/cmake/modules/FindKDE4Internal.cmake._DEFAULT_SOURCE	2014-06-08 17:15:31.037189262 -0500
++++ kdelibs-4.13.2/cmake/modules/FindKDE4Internal.cmake	2014-06-09 08:00:43.074844711 -0500
+@@ -1097,7 +1097,7 @@ endif (APPLE)
+ 
+ if (CMAKE_SYSTEM_NAME MATCHES Linux OR CMAKE_SYSTEM_NAME STREQUAL GNU)
+    if (CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+-      set ( _KDE4_PLATFORM_DEFINITIONS -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -D_GNU_SOURCE)
++      set ( _KDE4_PLATFORM_DEFINITIONS -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_GNU_SOURCE)
+       set ( CMAKE_SHARED_LINKER_FLAGS "-Wl,--fatal-warnings -Wl,--no-undefined -lc ${CMAKE_SHARED_LINKER_FLAGS}")
+       set ( CMAKE_MODULE_LINKER_FLAGS "-Wl,--fatal-warnings -Wl,--no-undefined -lc ${CMAKE_MODULE_LINKER_FLAGS}")
+ 
+@@ -1112,7 +1112,7 @@ if (CMAKE_SYSTEM_NAME MATCHES Linux OR C
+       endif(CMAKE_BUILD_TYPE_TOLOWER MATCHES profile)
+    endif (CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+    if (CMAKE_C_COMPILER MATCHES "icc")
+-      set ( _KDE4_PLATFORM_DEFINITIONS -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -D_GNU_SOURCE)
++      set ( _KDE4_PLATFORM_DEFINITIONS -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_GNU_SOURCE)
+       set ( CMAKE_SHARED_LINKER_FLAGS "-Wl,--fatal-warnings -Wl,--no-undefined -lc ${CMAKE_SHARED_LINKER_FLAGS}")
+       set ( CMAKE_MODULE_LINKER_FLAGS "-Wl,--fatal-warnings -Wl,--no-undefined -lc ${CMAKE_MODULE_LINKER_FLAGS}")
+    endif (CMAKE_C_COMPILER MATCHES "icc")
+@@ -1216,7 +1216,7 @@ if (CMAKE_COMPILER_IS_GNUCXX)
+      # It is kept here nonetheless both for backwards compatibility in case one does not use add_definitions(${KDE4_DEFINITIONS})
+      # and also because it is/was needed by glibc for snprintf to be available when building C files.
+      # See commit 4a44862b2d178c1d2e1eb4da90010d19a1e4a42c.
+-     add_definitions (-D_BSD_SOURCE)
++     add_definitions (-D_BSD_SOURCE -D_DEFAULT_SOURCE)
+    endif (CMAKE_SYSTEM_NAME MATCHES Linux OR CMAKE_SYSTEM_NAME STREQUAL GNU)
+ 
+    if (CMAKE_SYSTEM_NAME STREQUAL GNU)
diff --git a/kdelibs.spec b/kdelibs.spec
index 3cfa638..e9caa2d 100644
--- a/kdelibs.spec
+++ b/kdelibs.spec
@@ -39,7 +39,7 @@
 
 Summary: KDE Libraries
 Version: 4.13.2
-Release: 2%{?dist}
+Release: 3%{?dist}
 
 Name: kdelibs
 Epoch: 6
@@ -135,6 +135,10 @@ Patch49: kdelibs-solid_qt_no_debug_output.patch
 # https://git.reviewboard.kde.org/r/102439/
 Patch50: kdelibs-4.7.0-knewstuff2_gpg2.patch
 
+# glibc-2.20 has deprecated _BSD_SOURCE in favor of _DEFAULT_SOURCE
+# http://sourceware.org/glibc/wiki/Release/2.20#Packaging_Changes
+Patch51: kdelibs-4.13.2-glibc_DEFAULT_SOURCE.patch
+
 # Toggle solid upnp support at runtime via env var SOLID_UPNP=1 (disabled by default)
 Patch52: kdelibs-4.10.0-SOLID_UPNP.patch
 
@@ -353,6 +357,7 @@ sed -i -e "s|@@VERSION_RELEASE@@|%{version}-%{release}|" kio/kio/kprotocolmanage
 
 # upstreamable patches
 %patch50 -p1 -b .knewstuff2_gpg2
+%patch51 -p1 -b .glibc_DEFAULT_SOURCE
 %patch52 -p1 -b .SOLID_UPNP
 %patch53 -p1 -b .kjs-s390
 %patch54 -p1 -b .kjs-locale
@@ -624,6 +629,9 @@ gtk-update-icon-cache %{_kde4_iconsdir}/hicolor &> /dev/null || :
 
 
 %changelog
+* Mon Jun 09 2014 Rex Dieter <rdieter@fedoraproject.org> - 6:4.13.2-3
+- FindKDE4Internal.cmake: define _DEFAULT_SOURCE too (to avoid _BSD_SOURCE deprecation warnings)
+
 * Sun Jun 08 2014 Rex Dieter <rdieter@fedoraproject.org> - 6:4.13.2-2
 - respin