Merge topic 'CheckIncludeFile-required-libs'
a61ae3fb80 CheckIncludeFiles: Honor CMAKE_REQUIRED_LIBRARIES
391a5837ee cmake_policy: Add undocumented PARENT_SCOPE option to GET
3c47ac5b25 OpenWatcom: Add workaround for lack of error on missing library
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1978
diff --git a/Help/manual/cmake-policies.7.rst b/Help/manual/cmake-policies.7.rst
index 7e2255d..631f75b 100644
--- a/Help/manual/cmake-policies.7.rst
+++ b/Help/manual/cmake-policies.7.rst
@@ -57,6 +57,7 @@
.. toctree::
:maxdepth: 1
+ CMP0075: Include file check macros honor CMAKE_REQUIRED_LIBRARIES. </policy/CMP0075>
CMP0074: find_package uses PackageName_ROOT variables. </policy/CMP0074>
CMP0073: Do not produce legacy _LIB_DEPENDS cache entries. </policy/CMP0073>
diff --git a/Help/policy/CMP0075.rst b/Help/policy/CMP0075.rst
new file mode 100644
index 0000000..aa5c3f7
--- /dev/null
+++ b/Help/policy/CMP0075.rst
@@ -0,0 +1,26 @@
+CMP0075
+-------
+
+Include file check macros honor ``CMAKE_REQUIRED_LIBRARIES``.
+
+In CMake 3.12 and above, the
+
+* ``check_include_file`` macro in the :module:`CheckIncludeFile` module, the
+* ``check_include_file_cxx`` macro in the
+ :module:`CheckIncludeFileCXX` module, and the
+* ``check_include_files`` macro in the :module:`CheckIncludeFiles` module
+
+now prefer to link the check executable to the libraries listed in the
+``CMAKE_REQUIRED_LIBRARIES`` variable. This policy provides compatibility
+with projects that have not been updated to expect this behavior.
+
+The ``OLD`` behavior for this policy is to ignore ``CMAKE_REQUIRED_LIBRARIES``
+in the include file check macros. The ``NEW`` behavior of this policy is to
+honor ``CMAKE_REQUIRED_LIBRARIES`` in the include file check macros.
+
+This policy was introduced in CMake version 3.12. CMake version
+|release| warns when the policy is not set and uses ``OLD`` behavior.
+Use the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW``
+explicitly.
+
+.. include:: DEPRECATED.txt
diff --git a/Help/release/dev/CheckIncludeFile-required-libs.rst b/Help/release/dev/CheckIncludeFile-required-libs.rst
new file mode 100644
index 0000000..6fb5c40
--- /dev/null
+++ b/Help/release/dev/CheckIncludeFile-required-libs.rst
@@ -0,0 +1,14 @@
+CheckIncludeFile-required-libs
+------------------------------
+
+* The :module:`CheckIncludeFile` module ``check_include_file`` macro
+ learned to honor the ``CMAKE_REQUIRED_LIBRARIES`` variable.
+ See policy :policy:`CMP0075`.
+
+* The :module:`CheckIncludeFileCXX` module ``check_include_file_cxx`` macro
+ learned to honor the ``CMAKE_REQUIRED_LIBRARIES`` variable.
+ See policy :policy:`CMP0075`.
+
+* The :module:`CheckIncludeFiles` module ``check_include_files`` macro
+ learned to honor the ``CMAKE_REQUIRED_LIBRARIES`` variable.
+ See policy :policy:`CMP0075`.
diff --git a/Modules/CheckIncludeFile.cmake b/Modules/CheckIncludeFile.cmake
index e5554c4..24bc349 100644
--- a/Modules/CheckIncludeFile.cmake
+++ b/Modules/CheckIncludeFile.cmake
@@ -27,6 +27,8 @@
# list of macros to define (-DFOO=bar)
# ``CMAKE_REQUIRED_INCLUDES``
# list of include directories
+# ``CMAKE_REQUIRED_LIBRARIES``
+# A list of libraries to link. See policy :policy:`CMP0075`.
# ``CMAKE_REQUIRED_QUIET``
# execute quietly without messages
#
@@ -55,14 +57,39 @@
string(APPEND CMAKE_C_FLAGS " ${ARGV2}")
endif()
+ set(_CIF_LINK_LIBRARIES "")
+ if(CMAKE_REQUIRED_LIBRARIES)
+ cmake_policy(GET CMP0075 _CIF_CMP0075
+ PARENT_SCOPE # undocumented, do not use outside of CMake
+ )
+ if("x${_CIF_CMP0075}x" STREQUAL "xNEWx")
+ set(_CIF_LINK_LIBRARIES LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
+ elseif("x${_CIF_CMP0075}x" STREQUAL "xOLDx")
+ elseif(NOT _CIF_CMP0075_WARNED)
+ set(_CIF_CMP0075_WARNED 1)
+ message(AUTHOR_WARNING
+ "Policy CMP0075 is not set: Include file check macros honor CMAKE_REQUIRED_LIBRARIES. "
+ "Run \"cmake --help-policy CMP0075\" for policy details. "
+ "Use the cmake_policy command to set the policy and suppress this warning."
+ "\n"
+ "CMAKE_REQUIRED_LIBRARIES is set to:\n"
+ " ${CMAKE_REQUIRED_LIBRARIES}\n"
+ "For compatibility with CMake 3.11 and below this check is ignoring it."
+ )
+ endif()
+ unset(_CIF_CMP0075)
+ endif()
+
try_compile(${VARIABLE}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFile.c
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ ${_CIF_LINK_LIBRARIES}
CMAKE_FLAGS
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
"${CHECK_INCLUDE_FILE_C_INCLUDE_DIRS}"
OUTPUT_VARIABLE OUTPUT)
+ unset(_CIF_LINK_LIBRARIES)
if(${ARGC} EQUAL 3)
set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_SAVE})
diff --git a/Modules/CheckIncludeFileCXX.cmake b/Modules/CheckIncludeFileCXX.cmake
index 7948bab..f13d983 100644
--- a/Modules/CheckIncludeFileCXX.cmake
+++ b/Modules/CheckIncludeFileCXX.cmake
@@ -27,6 +27,8 @@
# list of macros to define (-DFOO=bar)
# ``CMAKE_REQUIRED_INCLUDES``
# list of include directories
+# ``CMAKE_REQUIRED_LIBRARIES``
+# A list of libraries to link. See policy :policy:`CMP0075`.
# ``CMAKE_REQUIRED_QUIET``
# execute quietly without messages
#
@@ -54,14 +56,39 @@
string(APPEND CMAKE_CXX_FLAGS " ${ARGV2}")
endif()
+ set(_CIF_LINK_LIBRARIES "")
+ if(CMAKE_REQUIRED_LIBRARIES)
+ cmake_policy(GET CMP0075 _CIF_CMP0075
+ PARENT_SCOPE # undocumented, do not use outside of CMake
+ )
+ if("x${_CIF_CMP0075}x" STREQUAL "xNEWx")
+ set(_CIF_LINK_LIBRARIES LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
+ elseif("x${_CIF_CMP0075}x" STREQUAL "xOLDx")
+ elseif(NOT _CIF_CMP0075_WARNED)
+ set(_CIF_CMP0075_WARNED 1)
+ message(AUTHOR_WARNING
+ "Policy CMP0075 is not set: Include file check macros honor CMAKE_REQUIRED_LIBRARIES. "
+ "Run \"cmake --help-policy CMP0075\" for policy details. "
+ "Use the cmake_policy command to set the policy and suppress this warning."
+ "\n"
+ "CMAKE_REQUIRED_LIBRARIES is set to:\n"
+ " ${CMAKE_REQUIRED_LIBRARIES}\n"
+ "For compatibility with CMake 3.11 and below this check is ignoring it."
+ )
+ endif()
+ unset(_CIF_CMP0075)
+ endif()
+
try_compile(${VARIABLE}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFile.cxx
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ ${_CIF_LINK_LIBRARIES}
CMAKE_FLAGS
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
"${CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS}"
OUTPUT_VARIABLE OUTPUT)
+ unset(_CIF_LINK_LIBRARIES)
if(${ARGC} EQUAL 3)
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS_SAVE})
diff --git a/Modules/CheckIncludeFiles.cmake b/Modules/CheckIncludeFiles.cmake
index 59afdab..c689f05 100644
--- a/Modules/CheckIncludeFiles.cmake
+++ b/Modules/CheckIncludeFiles.cmake
@@ -33,6 +33,8 @@
# list of macros to define (-DFOO=bar)
# ``CMAKE_REQUIRED_INCLUDES``
# list of include directories
+# ``CMAKE_REQUIRED_LIBRARIES``
+# A list of libraries to link. See policy :policy:`CMP0075`.
# ``CMAKE_REQUIRED_QUIET``
# execute quietly without messages
#
@@ -95,6 +97,29 @@
set(_description "include file ${_INCLUDE}")
endif()
+ set(_CIF_LINK_LIBRARIES "")
+ if(CMAKE_REQUIRED_LIBRARIES)
+ cmake_policy(GET CMP0075 _CIF_CMP0075
+ PARENT_SCOPE # undocumented, do not use outside of CMake
+ )
+ if("x${_CIF_CMP0075}x" STREQUAL "xNEWx")
+ set(_CIF_LINK_LIBRARIES LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
+ elseif("x${_CIF_CMP0075}x" STREQUAL "xOLDx")
+ elseif(NOT _CIF_CMP0075_WARNED)
+ set(_CIF_CMP0075_WARNED 1)
+ message(AUTHOR_WARNING
+ "Policy CMP0075 is not set: Include file check macros honor CMAKE_REQUIRED_LIBRARIES. "
+ "Run \"cmake --help-policy CMP0075\" for policy details. "
+ "Use the cmake_policy command to set the policy and suppress this warning."
+ "\n"
+ "CMAKE_REQUIRED_LIBRARIES is set to:\n"
+ " ${CMAKE_REQUIRED_LIBRARIES}\n"
+ "For compatibility with CMake 3.11 and below this check is ignoring it."
+ )
+ endif()
+ unset(_CIF_CMP0075)
+ endif()
+
if(NOT CMAKE_REQUIRED_QUIET)
message(STATUS "Looking for ${_description}")
endif()
@@ -102,10 +127,12 @@
${CMAKE_BINARY_DIR}
${src}
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ ${_CIF_LINK_LIBRARIES}
CMAKE_FLAGS
-DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
"${CHECK_INCLUDE_FILES_INCLUDE_DIRS}"
OUTPUT_VARIABLE OUTPUT)
+ unset(_CIF_LINK_LIBRARIES)
if(${VARIABLE})
if(NOT CMAKE_REQUIRED_QUIET)
message(STATUS "Looking for ${_description} - found")
diff --git a/Source/cmCMakePolicyCommand.cxx b/Source/cmCMakePolicyCommand.cxx
index 7ca1cbc..adf9ef8 100644
--- a/Source/cmCMakePolicyCommand.cxx
+++ b/Source/cmCMakePolicyCommand.cxx
@@ -95,7 +95,11 @@
bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
{
- if (args.size() != 3) {
+ bool parent_scope = false;
+ if (args.size() == 4 && args[3] == "PARENT_SCOPE") {
+ // Undocumented PARENT_SCOPE option for use within CMake.
+ parent_scope = true;
+ } else if (args.size() != 3) {
this->SetError("GET must be given exactly 2 additional arguments.");
return false;
}
@@ -115,7 +119,8 @@
}
// Lookup the policy setting.
- cmPolicies::PolicyStatus status = this->Makefile->GetPolicyStatus(pid);
+ cmPolicies::PolicyStatus status =
+ this->Makefile->GetPolicyStatus(pid, parent_scope);
switch (status) {
case cmPolicies::OLD:
// Report that the policy is set to OLD.
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index f9eb90f..cf277d5 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -1893,6 +1893,13 @@
retVal = 1;
}
+ // The OpenWatcom tools do not return an error code when a link
+ // library is not found!
+ if (this->CMakeInstance->GetState()->UseWatcomWMake() && retVal == 0 &&
+ output.find("W1008: cannot open") != std::string::npos) {
+ retVal = 1;
+ }
+
return retVal;
}
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 9aeeb5c..490d516 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -4089,10 +4089,10 @@
return this->DefineFlagsOrig.c_str();
}
-cmPolicies::PolicyStatus cmMakefile::GetPolicyStatus(
- cmPolicies::PolicyID id) const
+cmPolicies::PolicyStatus cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id,
+ bool parent_scope) const
{
- return this->StateSnapshot.GetPolicy(id);
+ return this->StateSnapshot.GetPolicy(id, parent_scope);
}
bool cmMakefile::PolicyOptionalWarningEnabled(std::string const& var)
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index d2626cd..8589deb 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -284,7 +284,8 @@
*/
bool SetPolicy(cmPolicies::PolicyID id, cmPolicies::PolicyStatus status);
bool SetPolicy(const char* id, cmPolicies::PolicyStatus status);
- cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id) const;
+ cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id,
+ bool parent_scope = false) const;
bool SetPolicyVersion(std::string const& version_min,
std::string const& version_max);
void RecordPolicies(cmPolicies::PolicyMap& pm);
diff --git a/Source/cmPolicies.h b/Source/cmPolicies.h
index a21c778..9b9ef60 100644
--- a/Source/cmPolicies.h
+++ b/Source/cmPolicies.h
@@ -219,7 +219,10 @@
"Do not produce legacy _LIB_DEPENDS cache entries.", 3, 12, 0, \
cmPolicies::WARN) \
SELECT(POLICY, CMP0074, "find_package uses PackageName_ROOT variables.", 3, \
- 12, 0, cmPolicies::WARN)
+ 12, 0, cmPolicies::WARN) \
+ SELECT(POLICY, CMP0075, \
+ "Include file check macros honor CMAKE_REQUIRED_LIBRARIES.", 3, 12, \
+ 0, cmPolicies::WARN)
#define CM_SELECT_ID(F, A1, A2, A3, A4, A5, A6) F(A1)
#define CM_FOR_EACH_POLICY_ID(POLICY) \
diff --git a/Source/cmStateSnapshot.cxx b/Source/cmStateSnapshot.cxx
index 0d97c33..0229a77 100644
--- a/Source/cmStateSnapshot.cxx
+++ b/Source/cmStateSnapshot.cxx
@@ -160,8 +160,8 @@
}
}
-cmPolicies::PolicyStatus cmStateSnapshot::GetPolicy(
- cmPolicies::PolicyID id) const
+cmPolicies::PolicyStatus cmStateSnapshot::GetPolicy(cmPolicies::PolicyID id,
+ bool parent_scope) const
{
cmPolicies::PolicyStatus status = cmPolicies::GetPolicyStatus(id);
@@ -180,6 +180,10 @@
cmLinkedTree<cmStateDetail::PolicyStackEntry>::iterator root =
dir->DirectoryEnd->PolicyRoot;
for (; leaf != root; ++leaf) {
+ if (parent_scope) {
+ parent_scope = false;
+ continue;
+ }
if (leaf->IsDefined(id)) {
status = leaf->Get(id);
return status;
diff --git a/Source/cmStateSnapshot.h b/Source/cmStateSnapshot.h
index 94d6274..af5653b 100644
--- a/Source/cmStateSnapshot.h
+++ b/Source/cmStateSnapshot.h
@@ -43,7 +43,8 @@
cmStateEnums::SnapshotType GetType() const;
void SetPolicy(cmPolicies::PolicyID id, cmPolicies::PolicyStatus status);
- cmPolicies::PolicyStatus GetPolicy(cmPolicies::PolicyID id) const;
+ cmPolicies::PolicyStatus GetPolicy(cmPolicies::PolicyID id,
+ bool parent_scope = false) const;
bool HasDefinedPolicyCMP0011();
void PushPolicy(cmPolicies::PolicyMap const& entry, bool weak);
bool PopPolicy();
diff --git a/Tests/PolicyScope/CMakeLists.txt b/Tests/PolicyScope/CMakeLists.txt
index 413195a..353842b 100644
--- a/Tests/PolicyScope/CMakeLists.txt
+++ b/Tests/PolicyScope/CMakeLists.txt
@@ -52,6 +52,10 @@
# CMP0002 should be changed when this function is invoked
cmake_policy(GET CMP0002 cmp)
check(CMP0002 "OLD" "${cmp}")
+
+ # The undocumented PARENT_SCOPE option sees the caller's setting.
+ cmake_policy(GET CMP0002 cmp PARENT_SCOPE)
+ check(CMP0002 "NEW" "${cmp}")
endfunction()
# Unset CMP0002
@@ -61,6 +65,10 @@
cmake_policy(GET CMP0002 cmp)
check(CMP0002 "" "${cmp}")
+ # The undocumented PARENT_SCOPE option sees the caller's setting.
+ cmake_policy(GET CMP0002 cmp PARENT_SCOPE)
+ check(CMP0002 "NEW" "${cmp}")
+
# Setting the policy should work here and also in the caller.
cmake_policy(SET CMP0002 OLD)
cmake_policy(GET CMP0002 cmp)
diff --git a/Tests/RunCMake/CheckModules/CMP0075-stderr.txt b/Tests/RunCMake/CheckModules/CMP0075-stderr.txt
new file mode 100644
index 0000000..960fe94
--- /dev/null
+++ b/Tests/RunCMake/CheckModules/CMP0075-stderr.txt
@@ -0,0 +1,50 @@
+^CMake Warning \(dev\) at [^
+]*/Modules/CheckIncludeFile.cmake:[0-9]+ \(message\):
+ Policy CMP0075 is not set: Include file check macros honor
+ CMAKE_REQUIRED_LIBRARIES. Run "cmake --help-policy CMP0075" for policy
+ details. Use the cmake_policy command to set the policy and suppress this
+ warning.
+
+ CMAKE_REQUIRED_LIBRARIES is set to:
+
+ does_not_exist
+
+ For compatibility with CMake 3.11 and below this check is ignoring it.
+Call Stack \(most recent call first\):
+ CMP0075.cmake:11 \(check_include_file\)
+ CMakeLists.txt:[0-9]+ \(include\)
+This warning is for project developers. Use -Wno-dev to suppress it.
++
+CMake Warning \(dev\) at [^
+]*/Modules/CheckIncludeFileCXX.cmake:[0-9]+ \(message\):
+ Policy CMP0075 is not set: Include file check macros honor
+ CMAKE_REQUIRED_LIBRARIES. Run "cmake --help-policy CMP0075" for policy
+ details. Use the cmake_policy command to set the policy and suppress this
+ warning.
+
+ CMAKE_REQUIRED_LIBRARIES is set to:
+
+ does_not_exist
+
+ For compatibility with CMake 3.11 and below this check is ignoring it.
+Call Stack \(most recent call first\):
+ CMP0075.cmake:26 \(check_include_file_cxx\)
+ CMakeLists.txt:[0-9]+ \(include\)
+This warning is for project developers. Use -Wno-dev to suppress it.
++
+CMake Warning \(dev\) at [^
+]*/Modules/CheckIncludeFiles.cmake:[0-9]+ \(message\):
+ Policy CMP0075 is not set: Include file check macros honor
+ CMAKE_REQUIRED_LIBRARIES. Run "cmake --help-policy CMP0075" for policy
+ details. Use the cmake_policy command to set the policy and suppress this
+ warning.
+
+ CMAKE_REQUIRED_LIBRARIES is set to:
+
+ does_not_exist
+
+ For compatibility with CMake 3.11 and below this check is ignoring it.
+Call Stack \(most recent call first\):
+ CMP0075.cmake:41 \(check_include_files\)
+ CMakeLists.txt:[0-9]+ \(include\)
+This warning is for project developers. Use -Wno-dev to suppress it.$
diff --git a/Tests/RunCMake/CheckModules/CMP0075.cmake b/Tests/RunCMake/CheckModules/CMP0075.cmake
new file mode 100644
index 0000000..4a3b720
--- /dev/null
+++ b/Tests/RunCMake/CheckModules/CMP0075.cmake
@@ -0,0 +1,124 @@
+enable_language(C)
+enable_language(CXX)
+include(CheckIncludeFile)
+include(CheckIncludeFileCXX)
+include(CheckIncludeFiles)
+
+set(CMAKE_REQUIRED_LIBRARIES does_not_exist)
+
+#============================================================================
+
+check_include_file("stddef.h" HAVE_STDDEF_H_1)
+if(NOT HAVE_STDDEF_H_1)
+ message(SEND_ERROR "HAVE_STDDEF_H_1 failed but should have passed.")
+endif()
+if(NOT _CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDDEF_H_1 did not warn but should have")
+endif()
+check_include_file("stddef.h" HAVE_STDDEF_H_2) # second does not warn
+if(NOT HAVE_STDDEF_H_2)
+ message(SEND_ERROR "HAVE_STDDEF_H_2 failed but should have passed.")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#----------------------------------------------------------------------------
+
+check_include_file_cxx("stddef.h" HAVE_STDDEF_H_CXX_1)
+if(NOT HAVE_STDDEF_H_CXX_1)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_1 failed but should have passed.")
+endif()
+if(NOT _CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_1 did not warn but should have")
+endif()
+check_include_file_cxx("stddef.h" HAVE_STDDEF_H_CXX_2) # second does not warn
+if(NOT HAVE_STDDEF_H_CXX_2)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_2 failed but should have passed.")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#----------------------------------------------------------------------------
+
+check_include_files("stddef.h;stdlib.h" HAVE_STDLIB_H_1)
+if(NOT HAVE_STDLIB_H_1)
+ message(SEND_ERROR "HAVE_STDLIB_H_1 failed but should have passed.")
+endif()
+if(NOT _CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDLIB_H_1 did not warn but should have")
+endif()
+check_include_files("stddef.h;stdlib.h" HAVE_STDLIB_H_2) # second does not warn
+if(NOT HAVE_STDLIB_H_2)
+ message(SEND_ERROR "HAVE_STDLIB_H_2 failed but should have passed.")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#============================================================================
+cmake_policy(SET CMP0075 OLD)
+# These should not warn.
+# These should pass the checks due to ignoring 'does_not_exist'.
+
+check_include_file("stddef.h" HAVE_STDDEF_H_3)
+if(NOT HAVE_STDDEF_H_3)
+ message(SEND_ERROR "HAVE_STDDEF_H_3 failed but should have passed.")
+endif()
+if(_CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDDEF_H_3 warned but should not have")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#----------------------------------------------------------------------------
+
+check_include_file_cxx("stddef.h" HAVE_STDDEF_H_CXX_3)
+if(NOT HAVE_STDDEF_H_CXX_3)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_3 failed but should have passed.")
+endif()
+if(_CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_3 warned but should not have")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#----------------------------------------------------------------------------
+
+check_include_files("stddef.h;stdlib.h" HAVE_STDLIB_H_3)
+if(NOT HAVE_STDLIB_H_3)
+ message(SEND_ERROR "HAVE_STDLIB_H_3 failed but should have passed.")
+endif()
+if(_CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDLIB_H_3 warned but should not have")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#============================================================================
+cmake_policy(SET CMP0075 NEW)
+# These should not warn.
+# These should fail the checks due to requiring 'does_not_exist'.
+
+check_include_file("stddef.h" HAVE_STDDEF_H_4)
+if(HAVE_STDDEF_H_4)
+ message(SEND_ERROR "HAVE_STDDEF_H_4 passed but should have failed.")
+endif()
+if(_CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDDEF_H_4 warned but should not have")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#----------------------------------------------------------------------------
+
+check_include_file_cxx("stddef.h" HAVE_STDDEF_H_CXX_4)
+if(HAVE_STDDEF_H_CXX_4)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_4 passed but should have failed.")
+endif()
+if(_CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDDEF_H_CXX_4 warned but should not have")
+endif()
+unset(_CIF_CMP0075_WARNED)
+
+#----------------------------------------------------------------------------
+
+check_include_files("stddef.h;stdlib.h" HAVE_STDLIB_H_4)
+if(HAVE_STDLIB_H_4)
+ message(SEND_ERROR "HAVE_STDLIB_H_4 passed but should have failed.")
+endif()
+if(_CIF_CMP0075_WARNED)
+ message(SEND_ERROR "HAVE_STDLIB_H_4 warned but should not have")
+endif()
+unset(_CIF_CMP0075_WARNED)
diff --git a/Tests/RunCMake/CheckModules/RunCMakeTest.cmake b/Tests/RunCMake/CheckModules/RunCMakeTest.cmake
index c5aaa64..8a046e1 100644
--- a/Tests/RunCMake/CheckModules/RunCMakeTest.cmake
+++ b/Tests/RunCMake/CheckModules/RunCMakeTest.cmake
@@ -1,5 +1,7 @@
include(RunCMake)
+run_cmake(CMP0075)
+
run_cmake(CheckStructHasMemberOk)
run_cmake(CheckStructHasMemberUnknownLanguage)
run_cmake(CheckStructHasMemberMissingLanguage)
