cmDepends: Update types to always use a Makefile generator

We only use these classes with a `cmLocalUnixMakefileGenerator3`.
Construct using that type instead of just `cmLocalGenerator` so
that the Makefile-specific methods are available.

Source/cmDepends.cxx

@@ -9,12 +9,12 @@
 #include "cmFileTime.h"
 #include "cmFileTimeCache.h"
 #include "cmGeneratedFileStream.h"
-#include "cmLocalGenerator.h"
+#include "cmLocalUnixMakefileGenerator3.h"
 #include "cmMakefile.h"
 #include "cmStringAlgorithms.h"
 #include "cmSystemTools.h"
 
-cmDepends::cmDepends(cmLocalGenerator* lg, std::string targetDir)
+cmDepends::cmDepends(cmLocalUnixMakefileGenerator3* lg, std::string targetDir)
   : LocalGenerator(lg)
   , TargetDirectory(std::move(targetDir))
 {

Source/cmDepends.h

@@ -12,7 +12,7 @@
 #include <vector>
 
 class cmFileTimeCache;
-class cmLocalGenerator;
+class cmLocalUnixMakefileGenerator3;
 
 /** \class cmDepends
  * \brief Dependency scanner superclass.
@@ -29,7 +29,8 @@ public:
 public:
   /** Instances need to know the build directory name and the relative
       path from the build directory to the target file.  */
-  cmDepends(cmLocalGenerator* lg = nullptr, std::string targetDir = "");
+  cmDepends(cmLocalUnixMakefileGenerator3* lg = nullptr,
+            std::string targetDir = "");
 
   cmDepends(cmDepends const&) = delete;
   cmDepends& operator=(cmDepends const&) = delete;
@@ -38,7 +39,10 @@ public:
       scanning dependencies.  This is not a full local generator; it
       has been setup to do relative path conversions for the current
       directory.  */
-  void SetLocalGenerator(cmLocalGenerator* lg) { this->LocalGenerator = lg; }
+  void SetLocalGenerator(cmLocalUnixMakefileGenerator3* lg)
+  {
+    this->LocalGenerator = lg;
+  }
 
   /** Set the specific language to be scanned.  */
   void SetLanguage(const std::string& lang) { this->Language = lang; }
@@ -92,7 +96,7 @@ protected:
                         std::ostream& internalDepends);
 
   // The local generator.
-  cmLocalGenerator* LocalGenerator;
+  cmLocalUnixMakefileGenerator3* LocalGenerator;
 
   // Flag for verbose output.
   bool Verbose = false;

Source/cmDependsC.cxx

@@ -7,7 +7,7 @@
 #include "cmsys/FStream.hxx"
 
 #include "cmFileTime.h"
-#include "cmLocalGenerator.h"
+#include "cmLocalUnixMakefileGenerator3.h"
 #include "cmMakefile.h"
 #include "cmStringAlgorithms.h"
 #include "cmSystemTools.h"
@@ -22,8 +22,9 @@
 
 cmDependsC::cmDependsC() = default;
 
-cmDependsC::cmDependsC(cmLocalGenerator* lg, const std::string& targetDir,
+cmDependsC::cmDependsC(cmLocalUnixMakefileGenerator3* lg,
-                       const std::string& lang, const DependencyMap* validDeps)
+                       const std::string& targetDir, const std::string& lang,
+                       const DependencyMap* validDeps)
   : cmDepends(lg, targetDir)
   , ValidDeps(validDeps)
 {

Source/cmDependsC.h

@@ -16,7 +16,7 @@
 
 #include "cmDepends.h"
 
-class cmLocalGenerator;
+class cmLocalUnixMakefileGenerator3;
 
 /** \class cmDependsC
  * \brief Dependency scanner for C and C++ object files.
@@ -27,7 +27,7 @@ public:
   /** Checking instances need to know the build directory name and the
       relative path from the build directory to the target file.  */
   cmDependsC();
-  cmDependsC(cmLocalGenerator* lg, const std::string& targetDir,
+  cmDependsC(cmLocalUnixMakefileGenerator3* lg, const std::string& targetDir,
              const std::string& lang, const DependencyMap* validDeps);
 
   /** Virtual destructor to cleanup subclasses properly.  */

Source/cmDependsFortran.cxx

@@ -12,7 +12,7 @@
 
 #include "cmFortranParser.h" /* Interface to parser object.  */
 #include "cmGeneratedFileStream.h"
-#include "cmLocalGenerator.h"
+#include "cmLocalUnixMakefileGenerator3.h"
 #include "cmMakefile.h"
 #include "cmOutputConverter.h"
 #include "cmStateDirectory.h"
@@ -72,7 +72,7 @@ public:
 
 cmDependsFortran::cmDependsFortran() = default;
 
-cmDependsFortran::cmDependsFortran(cmLocalGenerator* lg)
+cmDependsFortran::cmDependsFortran(cmLocalUnixMakefileGenerator3* lg)
   : cmDepends(lg)
   , Internal(new cmDependsFortranInternals)
 {

Source/cmDependsFortran.h

@@ -15,7 +15,7 @@
 
 class cmDependsFortranInternals;
 class cmFortranSourceInfo;
-class cmLocalGenerator;
+class cmLocalUnixMakefileGenerator3;
 
 /** \class cmDependsFortran
  * \brief Dependency scanner for Fortran object files.
@@ -31,7 +31,7 @@ public:
       path from the build directory to the target file, the source
       file from which to start scanning, the include file search
       path, and the target directory.  */
-  cmDependsFortran(cmLocalGenerator* lg);
+  cmDependsFortran(cmLocalUnixMakefileGenerator3* lg);
 
   /** Virtual destructor to cleanup subclasses properly.  */
   ~cmDependsFortran() override;