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Merge topic 'outdir-CMAKE_USER_MAKE_RULES_OVERRIDE' 

5792d3a Always place try_compile executables predictably (#11724)
a5300f1 Clarify CMAKE_USER_MAKE_RULES_OVERRIDE documentation (#11724)
This commit is contained in:
Brad King 2011-01-26 15:24:44 -05:00 committed by CMake Topic Stage
parent 7e6a004659 5792d3a38a
commit 7f37eac6dd
2 changed files with 31 additions and 14 deletions
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4
Source/cmCoreTryCompile.cxx
View File

@ -283,6 +283,10 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
cmakeFlags.push_back(flag);
}
/* Put the executable at a known location (for COPY_FILE). */
fprintf(fout, "SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
this->BinaryDirectory.c_str());
/* Create the actual executable. */
fprintf(fout, "ADD_EXECUTABLE(cmTryCompileExec \"%s\")\n",source.c_str());
fprintf(fout,
"TARGET_LINK_LIBRARIES(cmTryCompileExec ${LINK_LIBRARIES})\n");

41
Source/cmDocumentVariables.cxx
View File

@ -696,13 +696,29 @@ void cmDocumentVariables::DefineVariables(cmake* cm)
cm->DefineProperty
("CMAKE_USER_MAKE_RULES_OVERRIDE", cmProperty::VARIABLE,
"Specify a file that can change the build rule variables.",
"If this variable is set, it should to point to a "
"CMakeLists.txt file that will be read in by CMake "
"after all the system settings have been set, but "
"before they have been used. This would allow you "
"to override any variables that need to be changed "
"for some special project. ",false,
"Specify a CMake file that overrides platform information.",
"CMake loads the specified file while enabling support for each "
"language from either the project() or enable_language() commands. "
"It is loaded after CMake's builtin compiler and platform information "
"modules have been loaded but before the information is used. "
"The file may set platform information variables to override CMake's "
"defaults."
"\n"
"This feature is intended for use only in overriding information "
"variables that must be set before CMake builds its first test "
"project to check that the compiler for a language works. "
"It should not be used to load a file in cases that a normal include() "
"will work. "
"Use it only as a last resort for behavior that cannot be achieved "
"any other way. "
"For example, one may set CMAKE_C_FLAGS_INIT to change the default "
"value used to initialize CMAKE_C_FLAGS before it is cached. "
"The override file should NOT be used to set anything that could "
"be set after languages are enabled, such as variables like "
"CMAKE_RUNTIME_OUTPUT_DIRECTORY that affect the placement of binaries. "
"Information set in the file will be used for try_compile and try_run "
"builds too."
,false,
"Variables That Change Behavior");
cm->DefineProperty
@ -1138,13 +1154,10 @@ void cmDocumentVariables::DefineVariables(cmake* cm)
cm->DefineProperty
("CMAKE_USER_MAKE_RULES_OVERRIDE_<LANG>", cmProperty::VARIABLE,
"Specify a file that can change the build rule variables.",
"If this variable is set, it should to point to a "
"CMakeLists.txt file that will be read in by CMake "
"after all the system settings have been set, but "
"before they have been used. This would allow you "
"to override any variables that need to be changed "
"for some language. ",false,
"Specify a CMake file that overrides platform information for <LANG>.",
"This is a language-specific version of "
"CMAKE_USER_MAKE_RULES_OVERRIDE loaded only when enabling "
"language <LANG>.",false,
"Variables for Languages");
cm->DefineProperty