Refactor internal resource location APIs and initialization

Rename cmSystemTools::FindExecutableDirectory to FindCMakeResources.
Teach it to compute the locations of cmake, ctest, cpack, ccmake, and
cmake-gui executables, and the location of CMAKE_ROOT.  Provide this
information from static cmSystemTools::Get<resource>() methods.
Refactor code that needs these locations to use the new APIs.

Teach FindCMakeResources to use the OS X system API to lookup the
executable location.  When running from the CMake build tree itself,
leave a file in the tree that FindCMakeResources can use to read the
location of the source tree.  This avoids the need to compile the source
tree location into a binary that may be installed and used without the
source tree.

Teach the QtDialog on OS X to create a "cmake-gui" symlink in the build
tree next to "cmake" and the other tools, as is already done in the
install tree for the application bundle.  This ensures a consistent set
of executables are available in one directory.

2 files changed, 3 insertions, 4 deletions

diff --git a/Source/CursesDialog/ccmake.cxx b/Source/CursesDialog/ccmake.cxx
index fdfe331..ce50845 100644
--- a/Source/CursesDialog/ccmake.cxx
+++ b/Source/CursesDialog/ccmake.cxx
@@ -80,14 +80,13 @@ void CMakeErrorHandler(const char* message, const char* title, bool&, void* clie
 
 int main(int argc, char** argv)
 {
-  cmSystemTools::FindExecutableDirectory(argv[0]);
+  cmSystemTools::FindCMakeResources(argv[0]);
   cmDocumentation doc;
   doc.addCMakeStandardDocSections();
   if(doc.CheckOptions(argc, argv))
     {
     cmake hcm;
     hcm.AddCMakePaths();
-    doc.SetCMakeRoot(hcm.GetCacheDefinition("CMAKE_ROOT"));
     std::vector<cmDocumentationEntry> generators;
     hcm.GetGeneratorDocumentation(generators);
     doc.SetName("ccmake");
diff --git a/Source/CursesDialog/cmCursesMainForm.cxx b/Source/CursesDialog/cmCursesMainForm.cxx
index 4fee0bb..d94cd37 100644
--- a/Source/CursesDialog/cmCursesMainForm.cxx
+++ b/Source/CursesDialog/cmCursesMainForm.cxx
@@ -43,14 +43,14 @@ cmCursesMainForm::cmCursesMainForm(std::vector<std::string> const& args,
   this->HelpMessage.push_back("");
   this->HelpMessage.push_back(s_ConstHelpMessage);
   this->CMakeInstance = new cmake;
-  this->CMakeInstance->SetCMakeEditCommand("ccmake");
+  this->CMakeInstance->SetCMakeEditCommand(
+    cmSystemTools::GetCMakeCursesCommand());
 
   // create the arguments for the cmake object
   std::string whereCMake = cmSystemTools::GetProgramPath(this->Args[0].c_str());
   whereCMake += "/cmake";
   this->Args[0] = whereCMake;
   this->CMakeInstance->SetArgs(this->Args);
-  this->CMakeInstance->SetCMakeCommand(whereCMake.c_str());
   this->SearchString = "";
   this->OldSearchString = "";
   this->SearchMode = false;