Merge topic 'HandleTargetsInCMakeRequiredLibraries'

35c48e1 Check*.cmake: Expand imported targets in CMAKE_REQUIRED_LIBRARIES
61cb4ea bootstrap: move while() and endwhile() into the bootstrap build
c9f2886 -don't pull in CheckTypeSize.cmake from the cmake which is being built
628f365 -remove trailing whitespace

Modules/CMakeExpandImportedTargets.cmake

@@ -0,0 +1,129 @@
+# CMAKE_EXPAND_IMPORTED_TARGETS(<var> LIBRARIES lib1 lib2...libN
+#                                     [CONFIGURATION <config>] )
+#
+# CMAKE_EXPAND_IMPORTED_TARGETS() takes a list of libraries and replaces
+# all imported targets contained in this list with their actual file paths
+# of the referenced libraries on disk, including the libraries from their
+# link interfaces.
+# If a CONFIGURATION is given, it uses the respective configuration of the
+# imported targets if it exists. If no CONFIGURATION is given, it uses
+# the first configuration from ${CMAKE_CONFIGURATION_TYPES} if set, otherwise
+# ${CMAKE_BUILD_TYPE}.
+# This macro is used by all Check*.cmake files which use
+# TRY_COMPILE() or TRY_RUN() and support CMAKE_REQUIRED_LIBRARIES , so that
+# these checks support imported targets in CMAKE_REQUIRED_LIBRARIES:
+#    cmake_expand_imported_targets(expandedLibs LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}
+#                                               CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}" )
+
+
+#=============================================================================
+# Copyright 2012 Kitware, Inc.
+# Copyright 2009-2012 Alexander Neundorf <[email protected]>
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+include(CMakeParseArguments)
+
+function(CMAKE_EXPAND_IMPORTED_TARGETS _RESULT )
+
+   set(options )
+   set(oneValueArgs CONFIGURATION )
+   set(multiValueArgs LIBRARIES )
+
+   cmake_parse_arguments(CEIT "${options}" "${oneValueArgs}" "${multiValueArgs}"  ${ARGN})
+
+   if(CEIT_UNPARSED_ARGUMENTS)
+      message(FATAL_ERROR "Unknown keywords given to CMAKE_EXPAND_IMPORTED_TARGETS(): \"${CEIT_UNPARSED_ARGUMENTS}\"")
+   endif()
+
+   if(NOT CEIT_CONFIGURATION)
+      if(CMAKE_CONFIGURATION_TYPES)
+         list(GET CMAKE_CONFIGURATION_TYPES 0 CEIT_CONFIGURATION)
+      else()
+         set(CEIT_CONFIGURATION ${CMAKE_BUILD_TYPE})
+      endif()
+   endif()
+
+   # handle imported library targets
+
+   set(_CCSR_REQ_LIBS ${CEIT_LIBRARIES})
+
+   set(_CHECK_FOR_IMPORTED_TARGETS TRUE)
+   set(_CCSR_LOOP_COUNTER 0)
+   while(_CHECK_FOR_IMPORTED_TARGETS)
+      math(EXPR _CCSR_LOOP_COUNTER "${_CCSR_LOOP_COUNTER} + 1 ")
+      set(_CCSR_NEW_REQ_LIBS )
+      set(_CHECK_FOR_IMPORTED_TARGETS FALSE)
+      foreach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
+         get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
+         if (_importedConfigs)
+#            message(STATUS "Detected imported target ${_CURRENT_LIB}")
+            # Ok, so this is an imported target.
+            # First we get the imported configurations.
+            # Then we get the location of the actual library on disk of the first configuration.
+            # then we'll get its link interface libraries property,
+            # iterate through it and replace all imported targets we find there
+            # with there actual location.
+
+            # guard against infinite loop: abort after 100 iterations ( 100 is arbitrary chosen)
+            if ("${_CCSR_LOOP_COUNTER}" LESS 100)
+               set(_CHECK_FOR_IMPORTED_TARGETS TRUE)
+#                else ("${_CCSR_LOOP_COUNTER}" LESS 1)
+#                   message(STATUS "********* aborting loop, counter : ${_CCSR_LOOP_COUNTER}")
+            endif ("${_CCSR_LOOP_COUNTER}" LESS 100)
+
+            # if one of the imported configurations equals ${CMAKE_TRY_COMPILE_CONFIGURATION},
+            # use it, otherwise simply use the first one:
+            list(FIND _importedConfigs "${CEIT_CONFIGURATION}" _configIndexToUse)
+            if("${_configIndexToUse}" EQUAL -1)
+              set(_configIndexToUse 0)
+            endif("${_configIndexToUse}" EQUAL -1)
+            list(GET _importedConfigs ${_configIndexToUse} _importedConfigToUse)
+
+            get_target_property(_importedLocation "${_CURRENT_LIB}" IMPORTED_LOCATION_${_importedConfigToUse})
+            get_target_property(_linkInterfaceLibs "${_CURRENT_LIB}" IMPORTED_LINK_INTERFACE_LIBRARIES_${_importedConfigToUse} )
+
+            list(APPEND _CCSR_NEW_REQ_LIBS  "${_importedLocation}")
+#            message(STATUS "Appending lib ${_CURRENT_LIB} as ${_importedLocation}")
+            if(_linkInterfaceLibs)
+               foreach(_currentLinkInterfaceLib ${_linkInterfaceLibs})
+#                  message(STATUS "Appending link interface lib ${_currentLinkInterfaceLib}")
+                  if(_currentLinkInterfaceLib)
+                     list(APPEND _CCSR_NEW_REQ_LIBS "${_currentLinkInterfaceLib}" )
+                  endif(_currentLinkInterfaceLib)
+               endforeach(_currentLinkInterfaceLib "${_linkInterfaceLibs}")
+            endif(_linkInterfaceLibs)
+         else(_importedConfigs)
+            # "Normal" libraries are just used as they are.
+            list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
+#            message(STATUS "Appending lib directly: ${_CURRENT_LIB}")
+         endif(_importedConfigs)
+      endforeach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
+
+      set(_CCSR_REQ_LIBS ${_CCSR_NEW_REQ_LIBS} )
+   endwhile(_CHECK_FOR_IMPORTED_TARGETS)
+
+   # Finally we iterate once more over all libraries. This loop only removes
+   # all remaining imported target names (there shouldn't be any left anyway).
+   set(_CCSR_NEW_REQ_LIBS )
+   foreach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
+      get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
+      if (NOT _importedConfigs)
+         list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
+#         message(STATUS "final: appending ${_CURRENT_LIB}")
+      else (NOT _importedConfigs)
+#             message(STATUS "final: skipping ${_CURRENT_LIB}")
+      endif (NOT _importedConfigs)
+   endforeach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
+#   message(STATUS "setting -${_RESULT}- to -${_CCSR_NEW_REQ_LIBS}-")
+   set(${_RESULT} "${_CCSR_NEW_REQ_LIBS}" PARENT_SCOPE)
+
+endfunction()

Modules/CheckCSourceCompiles.cmake

@@ -24,6 +24,9 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_C_SOURCE_COMPILES SOURCE VAR)
   IF("${VAR}" MATCHES "^${VAR}$")
     SET(_FAIL_REGEX)
@@ -40,8 +43,10 @@ MACRO(CHECK_C_SOURCE_COMPILES SOURCE VAR)
     SET(MACRO_CHECK_FUNCTION_DEFINITIONS
       "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)

Modules/CheckCSourceRuns.cmake

@@ -24,13 +24,18 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_C_SOURCE_RUNS SOURCE VAR)
   IF("${VAR}" MATCHES "^${VAR}$")
-    SET(MACRO_CHECK_FUNCTION_DEFINITIONS 
+    SET(MACRO_CHECK_FUNCTION_DEFINITIONS
       "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)
@@ -61,7 +66,7 @@ MACRO(CHECK_C_SOURCE_RUNS SOURCE VAR)
     IF("${${VAR}_EXITCODE}" EQUAL 0)
       SET(${VAR} 1 CACHE INTERNAL "Test ${VAR}")
       MESSAGE(STATUS "Performing Test ${VAR} - Success")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Performing C SOURCE FILE Test ${VAR} succeded with the following output:\n"
         "${OUTPUT}\n"
         "Return value: ${${VAR}}\n"
@@ -74,7 +79,7 @@ MACRO(CHECK_C_SOURCE_RUNS SOURCE VAR)
       ENDIF(CMAKE_CROSSCOMPILING AND "${${VAR}_EXITCODE}" MATCHES  "FAILED_TO_RUN")
 
       MESSAGE(STATUS "Performing Test ${VAR} - Failed")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Performing C SOURCE FILE Test ${VAR} failed with the following output:\n"
         "${OUTPUT}\n"
         "Return value: ${${VAR}_EXITCODE}\n"

Modules/CheckCXXSourceCompiles.cmake

@@ -24,6 +24,9 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
   IF("${VAR}" MATCHES "^${VAR}$")
     SET(_FAIL_REGEX)
@@ -41,8 +44,10 @@ MACRO(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
     SET(MACRO_CHECK_FUNCTION_DEFINITIONS
       "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)

Modules/CheckCXXSourceRuns.cmake

@@ -24,13 +24,18 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_CXX_SOURCE_RUNS SOURCE VAR)
   IF("${VAR}" MATCHES "^${VAR}$")
-    SET(MACRO_CHECK_FUNCTION_DEFINITIONS 
+    SET(MACRO_CHECK_FUNCTION_DEFINITIONS
       "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)
@@ -62,9 +67,9 @@ MACRO(CHECK_CXX_SOURCE_RUNS SOURCE VAR)
     IF("${${VAR}_EXITCODE}" EQUAL 0)
       SET(${VAR} 1 CACHE INTERNAL "Test ${VAR}")
       MESSAGE(STATUS "Performing Test ${VAR} - Success")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Performing C++ SOURCE FILE Test ${VAR} succeded with the following output:\n"
-        "${OUTPUT}\n" 
+        "${OUTPUT}\n"
         "Return value: ${${VAR}}\n"
         "Source file was:\n${SOURCE}\n")
     ELSE("${${VAR}_EXITCODE}" EQUAL 0)
@@ -75,9 +80,9 @@ MACRO(CHECK_CXX_SOURCE_RUNS SOURCE VAR)
       ENDIF(CMAKE_CROSSCOMPILING AND "${${VAR}_EXITCODE}" MATCHES  "FAILED_TO_RUN")
 
       MESSAGE(STATUS "Performing Test ${VAR} - Failed")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Performing C++ SOURCE FILE Test ${VAR} failed with the following output:\n"
-        "${OUTPUT}\n"  
+        "${OUTPUT}\n"
         "Return value: ${${VAR}_EXITCODE}\n"
         "Source file was:\n${SOURCE}\n")
     ENDIF("${${VAR}_EXITCODE}" EQUAL 0)

Modules/CheckFortranFunctionExists.cmake

@@ -22,12 +22,17 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
   if(NOT DEFINED ${VARIABLE})
     message(STATUS "Looking for Fortran ${FUNCTION}")
     if(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      cmake_expand_imported_targets(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     else(CMAKE_REQUIRED_LIBRARIES)
       set(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
     endif(CMAKE_REQUIRED_LIBRARIES)
@@ -50,13 +55,13 @@ macro(CHECK_FORTRAN_FUNCTION_EXISTS FUNCTION VARIABLE)
     if(${VARIABLE})
       set(${VARIABLE} 1 CACHE INTERNAL "Have Fortran function ${FUNCTION}")
       message(STATUS "Looking for Fortran ${FUNCTION} - found")
-      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Determining if the Fortran ${FUNCTION} exists passed with the following output:\n"
         "${OUTPUT}\n\n")
     else(${VARIABLE})
       message(STATUS "Looking for Fortran ${FUNCTION} - not found")
       set(${VARIABLE} "" CACHE INTERNAL "Have Fortran function ${FUNCTION}")
-      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Determining if the Fortran ${FUNCTION} exists failed with the following output:\n"
         "${OUTPUT}\n\n")
     endif(${VARIABLE})

Modules/CheckFunctionExists.cmake

@@ -27,14 +27,19 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
   IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
-    SET(MACRO_CHECK_FUNCTION_DEFINITIONS 
+    SET(MACRO_CHECK_FUNCTION_DEFINITIONS
       "-DCHECK_FUNCTION_EXISTS=${FUNCTION} ${CMAKE_REQUIRED_FLAGS}")
     MESSAGE(STATUS "Looking for ${FUNCTION}")
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)
@@ -55,13 +60,13 @@ MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
     IF(${VARIABLE})
       SET(${VARIABLE} 1 CACHE INTERNAL "Have function ${FUNCTION}")
       MESSAGE(STATUS "Looking for ${FUNCTION} - found")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Determining if the function ${FUNCTION} exists passed with the following output:\n"
         "${OUTPUT}\n\n")
     ELSE(${VARIABLE})
       MESSAGE(STATUS "Looking for ${FUNCTION} - not found")
       SET(${VARIABLE} "" CACHE INTERNAL "Have function ${FUNCTION}")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Determining if the function ${FUNCTION} exists failed with the following output:\n"
         "${OUTPUT}\n\n")
     ENDIF(${VARIABLE})

Modules/CheckLibraryExists.cmake

@@ -26,21 +26,26 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
   IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
-    SET(MACRO_CHECK_LIBRARY_EXISTS_DEFINITION 
+    SET(MACRO_CHECK_LIBRARY_EXISTS_DEFINITION
       "-DCHECK_FUNCTION_EXISTS=${FUNCTION} ${CMAKE_REQUIRED_FLAGS}")
     MESSAGE(STATUS "Looking for ${FUNCTION} in ${LIBRARY}")
     SET(CHECK_LIBRARY_EXISTS_LIBRARIES ${LIBRARY})
     IF(CMAKE_REQUIRED_LIBRARIES)
-      SET(CHECK_LIBRARY_EXISTS_LIBRARIES 
-        ${CHECK_LIBRARY_EXISTS_LIBRARIES} ${CMAKE_REQUIRED_LIBRARIES})
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
+      SET(CHECK_LIBRARY_EXISTS_LIBRARIES
+        ${CHECK_LIBRARY_EXISTS_LIBRARIES} ${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES})
     ENDIF(CMAKE_REQUIRED_LIBRARIES)
     TRY_COMPILE(${VARIABLE}
       ${CMAKE_BINARY_DIR}
       ${CMAKE_ROOT}/Modules/CheckFunctionExists.c
       COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
-      CMAKE_FLAGS 
+      CMAKE_FLAGS
       -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_LIBRARY_EXISTS_DEFINITION}
       -DLINK_DIRECTORIES:STRING=${LOCATION}
       "-DLINK_LIBRARIES:STRING=${CHECK_LIBRARY_EXISTS_LIBRARIES}"
@@ -49,14 +54,14 @@ MACRO(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
     IF(${VARIABLE})
       MESSAGE(STATUS "Looking for ${FUNCTION} in ${LIBRARY} - found")
       SET(${VARIABLE} 1 CACHE INTERNAL "Have library ${LIBRARY}")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Determining if the function ${FUNCTION} exists in the ${LIBRARY} "
         "passed with the following output:\n"
         "${OUTPUT}\n\n")
     ELSE(${VARIABLE})
       MESSAGE(STATUS "Looking for ${FUNCTION} in ${LIBRARY} - not found")
       SET(${VARIABLE} "" CACHE INTERNAL "Have library ${LIBRARY}")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Determining if the function ${FUNCTION} exists in the ${LIBRARY} "
         "failed with the following output:\n"
         "${OUTPUT}\n\n")

Modules/CheckPrototypeDefinition.cmake

@@ -34,8 +34,11 @@
 #  License text for the above reference.)
 #
 
+include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
 get_filename_component(__check_proto_def_dir "${CMAKE_CURRENT_LIST_FILE}" PATH)
 
+
 function(CHECK_PROTOTYPE_DEFINITION _FUNCTION _PROTOTYPE _RETURN _HEADER _VARIABLE)
 
   if ("${_VARIABLE}" MATCHES "^${_VARIABLE}$")
@@ -43,8 +46,10 @@ function(CHECK_PROTOTYPE_DEFINITION _FUNCTION _PROTOTYPE _RETURN _HEADER _VARIAB
 
     set(CHECK_PROTOTYPE_DEFINITION_FLAGS ${CMAKE_REQUIRED_FLAGS})
     if (CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      cmake_expand_imported_targets(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       set(CHECK_PROTOTYPE_DEFINITION_LIBS
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     else(CMAKE_REQUIRED_LIBRARIES)
       set(CHECK_PROTOTYPE_DEFINITION_LIBS)
     endif(CMAKE_REQUIRED_LIBRARIES)

Modules/CheckSymbolExists.cmake

@@ -35,6 +35,9 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_SYMBOL_EXISTS SYMBOL FILES VARIABLE)
   _CHECK_SYMBOL_EXISTS("${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c" "${SYMBOL}" "${FILES}" "${VARIABLE}" )
 ENDMACRO(CHECK_SYMBOL_EXISTS)
@@ -44,8 +47,10 @@ MACRO(_CHECK_SYMBOL_EXISTS SOURCEFILE SYMBOL FILES VARIABLE)
     SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
     SET(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS})
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_SYMBOL_EXISTS_LIBS
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_SYMBOL_EXISTS_LIBS)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)

Modules/CheckTypeSize.cmake

@@ -47,6 +47,7 @@
 #  License text for the above reference.)
 
 include(CheckIncludeFile)
+include("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
 
 cmake_policy(PUSH)
 cmake_minimum_required(VERSION 2.6 FATAL_ERROR)
@@ -76,6 +77,10 @@ function(__check_type_size_impl type var map builtin)
   endforeach()
 
   # Perform the check.
+
+  # this one translates potentially used imported library targets to their files on disk
+  cmake_expand_imported_targets(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
+
   set(src ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckTypeSize/${var}.c)
   set(bin ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CheckTypeSize/${var}.bin)
   configure_file(${__check_type_size_dir}/CheckTypeSize.c.in ${src} @ONLY)
@@ -84,7 +89,7 @@ function(__check_type_size_impl type var map builtin)
     CMAKE_FLAGS
       "-DCOMPILE_DEFINITIONS:STRING=${CMAKE_REQUIRED_FLAGS}"
       "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}"
-      "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}"
+      "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}"
     OUTPUT_VARIABLE output
     COPY_FILE ${bin}
     )

Modules/CheckVariableExists.cmake

@@ -1,6 +1,6 @@
 # - Check if the variable exists.
 #  CHECK_VARIABLE_EXISTS(VAR VARIABLE)
-#  
+#
 #  VAR      - the name of the variable
 #  VARIABLE - variable to store the result
 #
@@ -26,14 +26,19 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/CMakeExpandImportedTargets.cmake")
+
+
 MACRO(CHECK_VARIABLE_EXISTS VAR VARIABLE)
   IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
-    SET(MACRO_CHECK_VARIABLE_DEFINITIONS 
+    SET(MACRO_CHECK_VARIABLE_DEFINITIONS
       "-DCHECK_VARIABLE_EXISTS=${VAR} ${CMAKE_REQUIRED_FLAGS}")
     MESSAGE(STATUS "Looking for ${VAR}")
     IF(CMAKE_REQUIRED_LIBRARIES)
+      # this one translates potentially used imported library targets to their files on disk
+      CMAKE_EXPAND_IMPORTED_TARGETS(_ADJUSTED_CMAKE_REQUIRED_LIBRARIES  LIBRARIES  ${CMAKE_REQUIRED_LIBRARIES} CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}")
       SET(CHECK_VARIABLE_EXISTS_ADD_LIBRARIES
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+        "-DLINK_LIBRARIES:STRING=${_ADJUSTED_CMAKE_REQUIRED_LIBRARIES}")
     ELSE(CMAKE_REQUIRED_LIBRARIES)
       SET(CHECK_VARIABLE_EXISTS_ADD_LIBRARIES)
     ENDIF(CMAKE_REQUIRED_LIBRARIES)
@@ -47,13 +52,13 @@ MACRO(CHECK_VARIABLE_EXISTS VAR VARIABLE)
     IF(${VARIABLE})
       SET(${VARIABLE} 1 CACHE INTERNAL "Have variable ${VAR}")
       MESSAGE(STATUS "Looking for ${VAR} - found")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Determining if the variable ${VAR} exists passed with the following output:\n"
         "${OUTPUT}\n\n")
     ELSE(${VARIABLE})
       SET(${VARIABLE} "" CACHE INTERNAL "Have variable ${VAR}")
       MESSAGE(STATUS "Looking for ${VAR} - not found")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Determining if the variable ${VAR} exists failed with the following output:\n"
         "${OUTPUT}\n\n")
     ENDIF(${VARIABLE})

Source/cmBootstrapCommands.cxx

@@ -12,7 +12,7 @@
 // This file is used to compile all the commands
 // that CMake knows about at compile time.
 // This is sort of a boot strapping approach since you would
-// like to have CMake to build CMake.   
+// like to have CMake to build CMake.
 #include "cmCommands.h"
 #include "cmAddCustomCommandCommand.cxx"
 #include "cmAddCustomTargetCommand.cxx"
@@ -38,6 +38,7 @@
 #include "cmEndFunctionCommand.cxx"
 #include "cmEndIfCommand.cxx"
 #include "cmEndMacroCommand.cxx"
+#include "cmEndWhileCommand.cxx"
 #include "cmExecProgramCommand.cxx"
 #include "cmExecuteProcessCommand.cxx"
 #include "cmExternalMakefileProjectGenerator.cxx"
@@ -91,6 +92,7 @@
 #include "cmTryCompileCommand.cxx"
 #include "cmTryRunCommand.cxx"
 #include "cmUnsetCommand.cxx"
+#include "cmWhileCommand.cxx"
 
 void GetBootstrapCommands(std::list<cmCommand*>& commands)
 {
@@ -111,11 +113,12 @@ void GetBootstrapCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmDefinePropertyCommand);
   commands.push_back(new cmElseCommand);
   commands.push_back(new cmEnableLanguageCommand);
-  commands.push_back(new cmEnableTestingCommand);  
+  commands.push_back(new cmEnableTestingCommand);
   commands.push_back(new cmEndForEachCommand);
   commands.push_back(new cmEndFunctionCommand);
   commands.push_back(new cmEndIfCommand);
   commands.push_back(new cmEndMacroCommand);
+  commands.push_back(new cmEndWhileCommand);
   commands.push_back(new cmExecProgramCommand);
   commands.push_back(new cmExecuteProcessCommand);
   commands.push_back(new cmFileCommand);
@@ -164,4 +167,5 @@ void GetBootstrapCommands(std::list<cmCommand*>& commands)
   commands.push_back(new cmTryCompileCommand);
   commands.push_back(new cmTryRunCommand);
   commands.push_back(new cmUnsetCommand);
+  commands.push_back(new cmWhileCommand);
 }

Source/cmCommands.cxx

@@ -14,7 +14,6 @@
 #include "cmAuxSourceDirectoryCommand.cxx"
 #include "cmBuildNameCommand.cxx"
 #include "cmElseIfCommand.cxx"
-#include "cmEndWhileCommand.cxx"
 #include "cmExportCommand.cxx"
 #include "cmExportLibraryDependencies.cxx"
 #include "cmFLTKWrapUICommand.cxx"
@@ -34,7 +33,6 @@
 #include "cmVariableRequiresCommand.cxx"
 #include "cmVariableWatchCommand.cxx"
 
-#include "cmWhileCommand.cxx"
 #include "cmWriteFileCommand.cxx"
 
 // This one must be last because it includes windows.h and
@@ -53,7 +51,6 @@ void GetPredefinedCommands(std::list<cmCommand*>&
   commands.push_back(new cmAuxSourceDirectoryCommand);
   commands.push_back(new cmBuildNameCommand);
   commands.push_back(new cmElseIfCommand);
-  commands.push_back(new cmEndWhileCommand);
   commands.push_back(new cmExportCommand);
   commands.push_back(new cmExportLibraryDependenciesCommand);
   commands.push_back(new cmFLTKWrapUICommand);
@@ -73,7 +70,6 @@ void GetPredefinedCommands(std::list<cmCommand*>&
   commands.push_back(new cmUtilitySourceCommand);
   commands.push_back(new cmVariableRequiresCommand);
   commands.push_back(new cmVariableWatchCommand);
-  commands.push_back(new cmWhileCommand);
   commands.push_back(new cmWriteFileCommand);
 #endif
 }

Source/cmWhileCommand.cxx

@@ -25,7 +25,7 @@ IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
   else if (!cmSystemTools::Strucmp(lff.Name.c_str(),"endwhile"))
     {
     // if this is the endwhile for this while loop then execute
-    if (!this->Depth) 
+    if (!this->Depth)
       {
       // Remove the function blocker for this scope or bail.
       cmsys::auto_ptr<cmFunctionBlocker>
@@ -33,16 +33,16 @@ IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
       if(!fb.get()) { return false; }
 
       std::string errorString;
-    
+
       std::vector<std::string> expandedArguments;
       mf.ExpandArguments(this->Args, expandedArguments);
       cmake::MessageType messageType;
-      bool isTrue = 
+      bool isTrue =
         cmIfCommand::IsTrue(expandedArguments,errorString,
                             &mf, messageType);
 
       while (isTrue)
-        {      
+        {
         if (errorString.size())
           {
           std::string err = "had incorrect arguments: ";
@@ -86,7 +86,7 @@ IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
           }
         expandedArguments.clear();
         mf.ExpandArguments(this->Args, expandedArguments);
-        isTrue = 
+        isTrue =
           cmIfCommand::IsTrue(expandedArguments,errorString,
                               &mf, messageType);
         }
@@ -101,7 +101,7 @@ IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
 
   // record the command
   this->Functions.push_back(lff);
-  
+
   // always return true
   return true;
 }
@@ -123,7 +123,7 @@ ShouldRemove(const cmListFileFunction& lff, cmMakefile& )
 }
 
 bool cmWhileCommand
-::InvokeInitialPass(const std::vector<cmListFileArgument>& args, 
+::InvokeInitialPass(const std::vector<cmListFileArgument>& args,
                     cmExecutionStatus &)
 {
   if(args.size() < 1)
@@ -131,12 +131,12 @@ bool cmWhileCommand
     this->SetError("called with incorrect number of arguments");
     return false;
     }
-  
+
   // create a function blocker
   cmWhileFunctionBlocker *f = new cmWhileFunctionBlocker();
   f->Args = args;
   this->Makefile->AddFunctionBlocker(f);
-  
+
   return true;
 }
 

Tests/ExportImport/Import/A/CMakeLists.txt

@@ -137,3 +137,14 @@ add_library(imp_lib1 STATIC imp_lib1.c)
 target_link_libraries(imp_lib1 exp_testLib2)
 add_library(imp_lib1b STATIC imp_lib1.c)
 target_link_libraries(imp_lib1b bld_testLib2)
+
+#-----------------------------------------------------------------------------
+# Test that handling imported targets, including transitive dependencies,
+# works in CheckFunctionExists (...and hopefully all other try_compile() checks
+include(CheckFunctionExists)
+unset(HAVE_TESTLIB1_FUNCTION CACHE)
+set(CMAKE_REQUIRED_LIBRARIES exp_testLib2)
+check_function_exists(testLib1 HAVE_TESTLIB1_FUNCTION)
+if (NOT HAVE_TESTLIB1_FUNCTION)
+  message(SEND_ERROR "Using imported target testLib2 in check_function_exists() failed !")
+endif()

Utilities/cmcurl/CMakeLists.txt

@@ -33,12 +33,7 @@ INCLUDE (CheckIncludeFile)
 INCLUDE (CheckIncludeFiles)
 INCLUDE (CheckLibraryExists)
 INCLUDE (CheckSymbolExists)
-IF(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.4
-    AND CMake_SOURCE_DIR)
-  INCLUDE (${CMake_SOURCE_DIR}/Modules/CheckTypeSize.cmake)
-ELSE()
-  INCLUDE (CheckTypeSize)
-ENDIF()
+INCLUDE (CheckTypeSize)
 
 SET(libCurl_SRCS
   #  amigaos.c - does not build on AmigaOS
@@ -139,7 +134,7 @@ ENDIF(WIN32)
 # does, it appends library to the list.
 SET(CURL_LIBS "")
 MACRO(CHECK_LIBRARY_EXISTS_CONCAT LIBRARY SYMBOL VARIABLE)
-  CHECK_LIBRARY_EXISTS("${LIBRARY};${CURL_LIBS}" ${SYMBOL} "" 
+  CHECK_LIBRARY_EXISTS("${LIBRARY};${CURL_LIBS}" ${SYMBOL} ""
     ${VARIABLE})
   IF(${VARIABLE})
     SET(CURL_LIBS ${CURL_LIBS} ${LIBRARY})
@@ -180,7 +175,7 @@ IF(CMAKE_USE_OPENSSL)
   SET(USE_SSLEAY TRUE)
   SET(USE_OPENSSL TRUE)
   IF(WIN32)
-    FIND_PATH(SSLINCLUDE openssl/crypto.h 
+    FIND_PATH(SSLINCLUDE openssl/crypto.h
       PATHS c:/hoffman/Tools/openssl_w32vc6-0.9.8g/inc32)
     INCLUDE_DIRECTORIES(${SSLINCLUDE})
     FIND_LIBRARY(LIBEAY NAMES libeay32)
@@ -226,7 +221,7 @@ IF(HAVE_FEATURES_H)
     getenv.c
     hash.c
     http.c
-    if2ip.c 
+    if2ip.c
     mprintf.c
     multi.c
     sendf.c
@@ -292,9 +287,9 @@ ENDIF(NOT CURL_SPECIAL_LIBZ)
 CHECK_INCLUDE_FILE_CONCAT("sys/socket.h"     HAVE_SYS_SOCKET_H)
 CHECK_INCLUDE_FILE_CONCAT("netinet/in.h"     HAVE_NETINET_IN_H)
 CHECK_INCLUDE_FILE_CONCAT("net/if.h"         HAVE_NET_IF_H)
-CHECK_INCLUDE_FILE_CONCAT("netinet/if_ether.h" 
+CHECK_INCLUDE_FILE_CONCAT("netinet/if_ether.h"
   HAVE_NETINET_IF_ETHER_H)
-CHECK_INCLUDE_FILE_CONCAT("netinet/tcp.h" 
+CHECK_INCLUDE_FILE_CONCAT("netinet/tcp.h"
   HAVE_NETINET_TCP_H)
 CHECK_INCLUDE_FILE_CONCAT("sys/select.h"    HAVE_SYS_SELECT_H)
 CHECK_INCLUDE_FILE_CONCAT("utime.h"         HAVE_UTIME_H)
@@ -426,7 +421,7 @@ IF(CMAKE_USE_OPENSSL)
   CHECK_SYMBOL_EXISTS(RAND_status   "${CURL_INCLUDES}" HAVE_RAND_STATUS)
   CHECK_SYMBOL_EXISTS(RAND_screen   "${CURL_INCLUDES}" HAVE_RAND_SCREEN)
   CHECK_SYMBOL_EXISTS(RAND_egd      "${CURL_INCLUDES}" HAVE_RAND_EGD)
-  CHECK_SYMBOL_EXISTS(CRYPTO_cleanup_all_ex_data "${CURL_INCLUDES}" 
+  CHECK_SYMBOL_EXISTS(CRYPTO_cleanup_all_ex_data "${CURL_INCLUDES}"
     HAVE_CRYPTO_CLEANUP_ALL_EX_DATA)
 ENDIF(CMAKE_USE_OPENSSL)
 CHECK_SYMBOL_EXISTS(gmtime_r      "${CURL_INCLUDES}" HAVE_GMTIME_R)
@@ -490,7 +485,7 @@ ENDIF(NOT HAVE_SIGSETJMP)
 # For other curl specific tests, use this macro.
 MACRO(CURL_INTERNAL_TEST CURL_TEST)
   IF("${CURL_TEST}" MATCHES "^${CURL_TEST}$")
-    SET(MACRO_CHECK_FUNCTION_DEFINITIONS 
+    SET(MACRO_CHECK_FUNCTION_DEFINITIONS
       "-D${CURL_TEST} ${CMAKE_REQUIRED_FLAGS}")
     IF(CMAKE_REQUIRED_LIBRARIES)
       SET(CURL_TEST_ADD_LIBRARIES
@@ -507,18 +502,18 @@ MACRO(CURL_INTERNAL_TEST CURL_TEST)
     IF(${CURL_TEST})
       SET(${CURL_TEST} 1 CACHE INTERNAL "Curl test ${FUNCTION}")
       MESSAGE(STATUS "Performing Curl Test ${CURL_TEST} - Success")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Performing Curl Test ${CURL_TEST} passed with the following output:\n"
         "${OUTPUT}\n")
     ELSE(${CURL_TEST})
       MESSAGE(STATUS "Performing Curl Test ${CURL_TEST} - Failed")
       SET(${CURL_TEST} "" CACHE INTERNAL "Curl test ${FUNCTION}")
-      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
+      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
         "Performing Curl Test ${CURL_TEST} failed with the following output:\n"
         "${OUTPUT}\n")
     ENDIF(${CURL_TEST})
   ENDIF("${CURL_TEST}" MATCHES "^${CURL_TEST}$")
-ENDMACRO(CURL_INTERNAL_TEST) 
+ENDMACRO(CURL_INTERNAL_TEST)
 
 # Do curl specific tests
 #OPTION(CURL_HAVE_DISABLED_NONBLOCKING "Disable non-blocking socket detection" OFF)
@@ -532,7 +527,7 @@ IF(NOT CURL_HAVE_DISABLED_NONBLOCKING)
     HAVE_SO_NONBLOCK
     )
 ENDIF(NOT CURL_HAVE_DISABLED_NONBLOCKING)
-FOREACH(CURL_TEST 
+FOREACH(CURL_TEST
     ${CURL_NONBLOCKING_TESTS}
     TIME_WITH_SYS_TIME
     HAVE_O_NONBLOCKHAVE_GETHOSTBYADDR_R_5
@@ -632,12 +627,12 @@ SET(CMAKE_REQUIRED_FLAGS)
 
 # Check for nonblocking
 SET(HAVE_DISABLED_NONBLOCKING 1)
-IF(HAVE_FIONBIO OR 
+IF(HAVE_FIONBIO OR
     HAVE_IOCTLSOCKET OR
     HAVE_IOCTLSOCKET_CASE OR
     HAVE_O_NONBLOCK)
   SET(HAVE_DISABLED_NONBLOCKING)
-ENDIF(HAVE_FIONBIO OR 
+ENDIF(HAVE_FIONBIO OR
   HAVE_IOCTLSOCKET OR
   HAVE_IOCTLSOCKET_CASE OR
   HAVE_O_NONBLOCK)