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ENH: Make find_* command search order more intuitive. 

- The CMAKE_PREFIX_PATH and similar variables have both
    environment and CMake cache versions.
  - Previously the environment value was checked before the
    cache value.
  - Now the cache value is favored because it is more specific.
This commit is contained in:
Brad King 2008-06-09 15:22:09 -04:00
parent fdb17d604c
commit d50785e26e
2 changed files with 15 additions and 18 deletions
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17
Source/cmFindBase.cxx
View File

@ -66,18 +66,15 @@ cmFindBase::cmFindBase()
"If NO_DEFAULT_PATH is specified, then no additional paths are "
"added to the search. "
"If NO_DEFAULT_PATH is not specified, the search process is as follows:\n"
"1. Search cmake specific environment variables. This "
"can be skipped if NO_CMAKE_ENVIRONMENT_PATH is passed.\n"
""
"1. Search paths specified in cmake-specific cache variables. "
"These are intended to be used on the command line with a -DVAR=value. "
"This can be skipped if NO_CMAKE_PATH is passed.\n"
" <prefix>/XXX_SUBDIR for each <prefix> in CMAKE_PREFIX_PATH\n"
" CMAKE_XXX_PATH\n"
" CMAKE_XXX_MAC_PATH\n"
"2. Search cmake variables with the same names as "
"the cmake specific environment variables. These "
"are intended to be used on the command line with a "
"-DVAR=value. This can be skipped if NO_CMAKE_PATH "
"is passed.\n"
""
"2. Search paths specified in cmake-specific environment variables. "
"These are intended to be set in the user's shell configuration. "
"This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is passed.\n"
" <prefix>/XXX_SUBDIR for each <prefix> in CMAKE_PREFIX_PATH\n"
" CMAKE_XXX_PATH\n"
" CMAKE_XXX_MAC_PATH\n"
@ -282,8 +279,8 @@ bool cmFindBase::ParseArguments(std::vector<std::string> const& argsIn)
void cmFindBase::ExpandPaths()
{
this->AddCMakeEnvironmentPath();
this->AddCMakeVariablePath();
this->AddCMakeEnvironmentPath();
this->AddUserHintsPath();
this->AddSystemEnvironmentPath();
this->AddCMakeSystemVariablePath();

16
Source/cmFindPackageCommand.cxx
View File

@ -239,16 +239,16 @@ cmFindPackageCommand::cmFindPackageCommand()
"CMAKE_FIND_APPBUNDLE determine the order of preference "
"as specified below.\n"
"The set of installation prefixes is constructed using the following "
"steps. If NO_DEFAULT_PATH is specified steps 1-5 are skipped.\n"
"1. Search cmake specific environment variables. This "
"can be skipped if NO_CMAKE_ENVIRONMENT_PATH is passed.\n"
"steps. If NO_DEFAULT_PATH is specified all NO_* options are enabled.\n"
"1. Search paths specified in cmake-specific cache variables. "
"These are intended to be used on the command line with a -DVAR=value. "
"This can be skipped if NO_CMAKE_PATH is passed.\n"
" CMAKE_PREFIX_PATH\n"
" CMAKE_FRAMEWORK_PATH\n"
" CMAKE_APPBUNDLE_PATH\n"
"2. Search cmake variables with the same names as the cmake specific "
"environment variables. These are intended to be used on the command "
"line with a -DVAR=value. This can be skipped if NO_CMAKE_PATH "
"is passed.\n"
"2. Search paths specified in cmake-specific environment variables. "
"These are intended to be set in the user's shell configuration. "
"This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is passed.\n"
" CMAKE_PREFIX_PATH\n"
" CMAKE_FRAMEWORK_PATH\n"
" CMAKE_APPBUNDLE_PATH\n"
@ -960,8 +960,8 @@ void cmFindPackageCommand::AppendSuccessInformation()
//----------------------------------------------------------------------------
void cmFindPackageCommand::ComputePrefixes()
{
this->AddPrefixesCMakeEnvironment();
this->AddPrefixesCMakeVariable();
this->AddPrefixesCMakeEnvironment();
this->AddPrefixesUserHints();
this->AddPrefixesSystemEnvironment();
this->AddPrefixesBuilds();