diff -uNr kdelibs-4.2.85.orig/ConfigureChecks.cmake kdelibs-4.2.85/ConfigureChecks.cmake
--- kdelibs-4.2.85.orig/ConfigureChecks.cmake	1970-01-01 01:00:00.000000000 +0100
+++ kdelibs-4.2.85/ConfigureChecks.cmake	2009-05-18 13:38:41.000000000 +0200
@@ -6,6 +6,7 @@
 include(CheckIncludeFile)
 include(CheckIncludeFiles)
 include(CheckSymbolExists)
+include(CheckCXXSymbolExists)
 include(CheckFunctionExists)
 include(CheckLibraryExists)
 include(CheckPrototypeExists)
@@ -232,7 +233,15 @@
 check_function_exists(random     HAVE_RANDOM)            # kdecore/fakes.c
 check_function_exists(strlcpy    HAVE_STRLCPY)           # kdecore/fakes.c
 check_function_exists(strlcat    HAVE_STRLCAT)           # kdecore/fakes.c
-check_function_exists(strcasestr HAVE_STRCASESTR)        # kdecore/fakes.c
+check_cxx_symbol_exists(__CORRECT_ISO_CPP_STRING_H_PROTO "string.h" HAVE_STRCASESTR_OVERLOAD) # glibc-2.9 strangeness
+if (HAVE_STRCASESTR_OVERLOAD)
+  message(STATUS "string.h defines __CORRECT_ISO_CPP_STRING_H_PROTO")
+  set(HAVE_STRCASESTR 1)
+  set(HAVE_STRCASESTR_PROTO 1)
+else()
+  check_function_exists(strcasestr HAVE_STRCASESTR)        # kdecore/fakes.c
+  check_prototype_exists(strcasestr string.h          HAVE_STRCASESTR_PROTO)
+endif()
 check_function_exists(setenv     HAVE_SETENV)            # kdecore/fakes.c
 check_function_exists(seteuid    HAVE_SETEUID)           # kdecore/fakes.c
 check_function_exists(setmntent  HAVE_SETMNTENT)         # solid, kio, kdecore
@@ -245,7 +254,6 @@
 check_prototype_exists(mkdtemp "stdlib.h;unistd.h"  HAVE_MKDTEMP_PROTO)
 check_prototype_exists(mkstemp "stdlib.h;unistd.h"  HAVE_MKSTEMP_PROTO)
 check_prototype_exists(strlcat string.h             HAVE_STRLCAT_PROTO)
-check_prototype_exists(strcasestr string.h          HAVE_STRCASESTR_PROTO)
 check_prototype_exists(strlcpy string.h             HAVE_STRLCPY_PROTO)
 check_prototype_exists(random stdlib.h              HAVE_RANDOM_PROTO)
 check_prototype_exists(res_init "sys/types.h;netinet/in.h;arpa/nameser.h;resolv.h" HAVE_RES_INIT_PROTO)
diff -uNr kdelibs-4.2.85.orig/cmake/modules/CheckCXXSymbolExists.cmake kdelibs-4.2.85/cmake/modules/CheckCXXSymbolExists.cmake
--- kdelibs-4.2.85.orig/cmake/modules/CheckCXXSymbolExists.cmake	1970-01-01 01:00:00.000000000 +0100
+++ kdelibs-4.2.85/cmake/modules/CheckCXXSymbolExists.cmake	2009-05-18 13:38:41.000000000 +0200
@@ -0,0 +1,71 @@
+# - Check if the symbol exists in include files, in C++ mode
+# Forked off cmake's CheckSymbolExists.cmake
+# CHECK_CXX_SYMBOL_EXISTS(SYMBOL FILES VARIABLE)
+#
+#  SYMBOL   - symbol
+#  FILES    - include files to check
+#  VARIABLE - variable to return result
+#
+# The following variables may be set before calling this macro to
+# modify the way the check is run:
+#
+#  CMAKE_REQUIRED_FLAGS = string of compile command line flags
+#  CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
+#  CMAKE_REQUIRED_INCLUDES = list of include directories
+#  CMAKE_REQUIRED_LIBRARIES = list of libraries to link
+
+MACRO(CHECK_CXX_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
+  IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+    SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
+    SET(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS})
+    IF(CMAKE_REQUIRED_LIBRARIES)
+      SET(CHECK_SYMBOL_EXISTS_LIBS 
+        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+    ELSE(CMAKE_REQUIRED_LIBRARIES)
+      SET(CHECK_SYMBOL_EXISTS_LIBS)
+    ENDIF(CMAKE_REQUIRED_LIBRARIES)
+    IF(CMAKE_REQUIRED_INCLUDES)
+      SET(CMAKE_SYMBOL_EXISTS_INCLUDES
+        "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+    ELSE(CMAKE_REQUIRED_INCLUDES)
+      SET(CMAKE_SYMBOL_EXISTS_INCLUDES)
+    ENDIF(CMAKE_REQUIRED_INCLUDES)
+    FOREACH(FILE ${FILES})
+      SET(CMAKE_CONFIGURABLE_FILE_CONTENT
+        "${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n")
+    ENDFOREACH(FILE)
+    SET(CMAKE_CONFIGURABLE_FILE_CONTENT
+      "${CMAKE_CONFIGURABLE_FILE_CONTENT}\nvoid cmakeRequireSymbol(int dummy,...){(void)dummy;}\nint main()\n{\n#ifndef ${SYMBOL}\n  cmakeRequireSymbol(0,&${SYMBOL});\n#endif\n  return 0;\n}\n")
+
+    CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
+      "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx" @ONLY)
+
+    MESSAGE(STATUS "Looking for ${SYMBOL}")
+    TRY_COMPILE(${VARIABLE}
+      ${CMAKE_BINARY_DIR}
+      ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx
+      COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+      CMAKE_FLAGS 
+      -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS}
+      "${CHECK_SYMBOL_EXISTS_LIBS}"
+      "${CMAKE_SYMBOL_EXISTS_INCLUDES}"
+      OUTPUT_VARIABLE OUTPUT)
+    IF(${VARIABLE})
+      MESSAGE(STATUS "Looking for ${SYMBOL} - found")
+      SET(${VARIABLE} 1 CACHE INTERNAL "Have symbol ${SYMBOL}")
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+        "Determining if the ${SYMBOL} "
+        "exist passed with the following output:\n"
+        "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx:\n"
+        "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
+    ELSE(${VARIABLE})
+      MESSAGE(STATUS "Looking for ${SYMBOL} - not found.")
+      SET(${VARIABLE} "" CACHE INTERNAL "Have symbol ${SYMBOL}")
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+        "Determining if the ${SYMBOL} "
+        "exist failed with the following output:\n"
+        "${OUTPUT}\nFile ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.cxx:\n"
+        "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
+    ENDIF(${VARIABLE})
+  ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ENDMACRO(CHECK_CXX_SYMBOL_EXISTS)