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)