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diff --git a/Source/cmDependsFortran.h b/Source/cmDependsFortran.h
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+++ b/Source/cmDependsFortran.h
@@ -0,0 +1,86 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmFortran_h
+#define cmFortran_h
+
+#include <cmConfigure.h>
+#include <iosfwd>
+#include <set>
+#include <string>
+#include <vector>
+
+#include "cmDepends.h"
+
+class cmDependsFortranInternals;
+class cmFortranSourceInfo;
+class cmLocalGenerator;
+
+/** \class cmDependsFortran
+ * \brief Dependency scanner for Fortran object files.
+ */
+class cmDependsFortran : public cmDepends
+{
+public:
+  /** Checking instances need to know the build directory name and the
+      relative path from the build directory to the target file.  */
+  cmDependsFortran();
+
+  /** Scanning need to know the build directory name, the relative
+      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);
+
+  /** Virtual destructor to cleanup subclasses properly.  */
+  ~cmDependsFortran() CM_OVERRIDE;
+
+  /** Callback from build system after a .mod file has been generated
+      by a Fortran90 compiler to copy the .mod file to the
+      corresponding stamp file.  */
+  static bool CopyModule(const std::vector<std::string>& args);
+
+  /** Determine if a mod file and the corresponding mod.stamp file
+      are representing  different module information. */
+  static bool ModulesDiffer(const char* modFile, const char* stampFile,
+                            const char* compilerId);
+
+protected:
+  // Finalize the dependency information for the target.
+  bool Finalize(std::ostream& makeDepends,
+                std::ostream& internalDepends) CM_OVERRIDE;
+
+  // Find all the modules required by the target.
+  void LocateModules();
+  void MatchLocalModules();
+  void MatchRemoteModules(std::istream& fin, const char* stampDir);
+  void ConsiderModule(const char* name, const char* stampDir);
+  bool FindModule(std::string const& name, std::string& module);
+
+  // Implement writing/checking methods required by superclass.
+  bool WriteDependencies(const std::set<std::string>& sources,
+                         const std::string& file, std::ostream& makeDepends,
+                         std::ostream& internalDepends) CM_OVERRIDE;
+
+  // Actually write the depenencies to the streams.
+  bool WriteDependenciesReal(const char* obj, cmFortranSourceInfo const& info,
+                             std::string const& mod_dir, const char* stamp_dir,
+                             std::ostream& makeDepends,
+                             std::ostream& internalDepends);
+
+  // The source file from which to start scanning.
+  std::string SourceFile;
+
+  std::set<std::string> PPDefinitions;
+
+  // Internal implementation details.
+  cmDependsFortranInternals* Internal;
+
+private:
+  cmDependsFortran(cmDependsFortran const&); // Purposely not implemented.
+  void operator=(cmDependsFortran const&);   // Purposely not implemented.
+
+  std::string MaybeConvertToRelativePath(std::string const& base,
+                                         std::string const& path);
+};
+
+#endif