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diff --git a/Source/cmDependsFortran.cxx b/Source/cmDependsFortran.cxx
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+/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+ file Copyright.txt or https://cmake.org/licensing for details. */
+#include "cmDependsFortran.h"
+
+#include <assert.h>
+#include <cmsys/FStream.hxx>
+#include <iostream>
+#include <map>
+#include <stdlib.h>
+#include <string.h>
+#include <utility>
+
+#include "cmFortranParser.h" /* Interface to parser object. */
+#include "cmGeneratedFileStream.h"
+#include "cmLocalGenerator.h"
+#include "cmMakefile.h"
+#include "cmOutputConverter.h"
+#include "cmStateDirectory.h"
+#include "cmStateSnapshot.h"
+#include "cmSystemTools.h"
+
+// TODO: Test compiler for the case of the mod file. Some always
+// use lower case and some always use upper case. I do not know if any
+// use the case from the source code.
+
+class cmDependsFortranInternals
+{
+public:
+ // The set of modules provided by this target.
+ std::set<std::string> TargetProvides;
+
+ // Map modules required by this target to locations.
+ typedef std::map<std::string, std::string> TargetRequiresMap;
+ TargetRequiresMap TargetRequires;
+
+ // Information about each object file.
+ typedef std::map<std::string, cmFortranSourceInfo> ObjectInfoMap;
+ ObjectInfoMap ObjectInfo;
+
+ cmFortranSourceInfo& CreateObjectInfo(const char* obj, const char* src)
+ {
+ std::map<std::string, cmFortranSourceInfo>::iterator i =
+ this->ObjectInfo.find(obj);
+ if (i == this->ObjectInfo.end()) {
+ std::map<std::string, cmFortranSourceInfo>::value_type entry(
+ obj, cmFortranSourceInfo());
+ i = this->ObjectInfo.insert(entry).first;
+ i->second.Source = src;
+ }
+ return i->second;
+ }
+};
+
+cmDependsFortran::cmDependsFortran()
+ : Internal(CM_NULLPTR)
+{
+}
+
+cmDependsFortran::cmDependsFortran(cmLocalGenerator* lg)
+ : cmDepends(lg)
+ , Internal(new cmDependsFortranInternals)
+{
+ // Configure the include file search path.
+ this->SetIncludePathFromLanguage("Fortran");
+
+ // Get the list of definitions.
+ std::vector<std::string> definitions;
+ cmMakefile* mf = this->LocalGenerator->GetMakefile();
+ if (const char* c_defines =
+ mf->GetDefinition("CMAKE_TARGET_DEFINITIONS_Fortran")) {
+ cmSystemTools::ExpandListArgument(c_defines, definitions);
+ }
+
+ // translate i.e. FOO=BAR to FOO and add it to the list of defined
+ // preprocessor symbols
+ for (std::vector<std::string>::const_iterator it = definitions.begin();
+ it != definitions.end(); ++it) {
+ std::string def = *it;
+ std::string::size_type assignment = def.find('=');
+ if (assignment != std::string::npos) {
+ def = it->substr(0, assignment);
+ }
+ this->PPDefinitions.insert(def);
+ }
+}
+
+cmDependsFortran::~cmDependsFortran()
+{
+ delete this->Internal;
+}
+
+bool cmDependsFortran::WriteDependencies(const std::set<std::string>& sources,
+ const std::string& obj,
+ std::ostream& /*makeDepends*/,
+ std::ostream& /*internalDepends*/)
+{
+ // Make sure this is a scanning instance.
+ if (sources.empty() || sources.begin()->empty()) {
+ cmSystemTools::Error("Cannot scan dependencies without a source file.");
+ return false;
+ }
+ if (obj.empty()) {
+ cmSystemTools::Error("Cannot scan dependencies without an object file.");
+ return false;
+ }
+
+ bool okay = true;
+ for (std::set<std::string>::const_iterator it = sources.begin();
+ it != sources.end(); ++it) {
+ const std::string& src = *it;
+ // Get the information object for this source.
+ cmFortranSourceInfo& info =
+ this->Internal->CreateObjectInfo(obj.c_str(), src.c_str());
+
+ // Create the parser object. The constructor takes info by reference,
+ // so we may look into the resulting objects later.
+ cmFortranParser parser(this->IncludePath, this->PPDefinitions, info);
+
+ // Push on the starting file.
+ cmFortranParser_FilePush(&parser, src.c_str());
+
+ // Parse the translation unit.
+ if (cmFortran_yyparse(parser.Scanner) != 0) {
+ // Failed to parse the file. Report failure to write dependencies.
+ okay = false;
+ /* clang-format off */
+ std::cerr <<
+ "warning: failed to parse dependencies from Fortran source "
+ "'" << src << "': " << parser.Error << std::endl
+ ;
+ /* clang-format on */
+ }
+ }
+ return okay;
+}
+
+bool cmDependsFortran::Finalize(std::ostream& makeDepends,
+ std::ostream& internalDepends)
+{
+ // Prepare the module search process.
+ this->LocateModules();
+
+ // Get the directory in which stamp files will be stored.
+ const char* stamp_dir = this->TargetDirectory.c_str();
+
+ // Get the directory in which module files will be created.
+ cmMakefile* mf = this->LocalGenerator->GetMakefile();
+ std::string mod_dir =
+ mf->GetSafeDefinition("CMAKE_Fortran_TARGET_MODULE_DIR");
+ if (mod_dir.empty()) {
+ mod_dir = this->LocalGenerator->GetCurrentBinaryDirectory();
+ }
+
+ // Actually write dependencies to the streams.
+ typedef cmDependsFortranInternals::ObjectInfoMap ObjectInfoMap;
+ ObjectInfoMap const& objInfo = this->Internal->ObjectInfo;
+ for (ObjectInfoMap::const_iterator i = objInfo.begin(); i != objInfo.end();
+ ++i) {
+ if (!this->WriteDependenciesReal(i->first.c_str(), i->second, mod_dir,
+ stamp_dir, makeDepends,
+ internalDepends)) {
+ return false;
+ }
+ }
+
+ // Store the list of modules provided by this target.
+ std::string fiName = this->TargetDirectory;
+ fiName += "/fortran.internal";
+ cmGeneratedFileStream fiStream(fiName.c_str());
+ fiStream << "# The fortran modules provided by this target.\n";
+ fiStream << "provides\n";
+ std::set<std::string> const& provides = this->Internal->TargetProvides;
+ for (std::set<std::string>::const_iterator i = provides.begin();
+ i != provides.end(); ++i) {
+ fiStream << " " << *i << "\n";
+ }
+
+ // Create a script to clean the modules.
+ if (!provides.empty()) {
+ std::string fcName = this->TargetDirectory;
+ fcName += "/cmake_clean_Fortran.cmake";
+ cmGeneratedFileStream fcStream(fcName.c_str());
+ fcStream << "# Remove fortran modules provided by this target.\n";
+ fcStream << "FILE(REMOVE";
+ std::string currentBinDir =
+ this->LocalGenerator->GetCurrentBinaryDirectory();
+ for (std::set<std::string>::const_iterator i = provides.begin();
+ i != provides.end(); ++i) {
+ std::string mod_upper = mod_dir;
+ mod_upper += "/";
+ mod_upper += cmSystemTools::UpperCase(*i);
+ mod_upper += ".mod";
+ std::string mod_lower = mod_dir;
+ mod_lower += "/";
+ mod_lower += *i;
+ mod_lower += ".mod";
+ std::string stamp = stamp_dir;
+ stamp += "/";
+ stamp += *i;
+ stamp += ".mod.stamp";
+ fcStream << "\n";
+ fcStream << " \""
+ << this->MaybeConvertToRelativePath(currentBinDir, mod_lower)
+ << "\"\n";
+ fcStream << " \""
+ << this->MaybeConvertToRelativePath(currentBinDir, mod_upper)
+ << "\"\n";
+ fcStream << " \""
+ << this->MaybeConvertToRelativePath(currentBinDir, stamp)
+ << "\"\n";
+ }
+ fcStream << " )\n";
+ }
+ return true;
+}
+
+void cmDependsFortran::LocateModules()
+{
+ // Collect the set of modules provided and required by all sources.
+ typedef cmDependsFortranInternals::ObjectInfoMap ObjectInfoMap;
+ ObjectInfoMap const& objInfo = this->Internal->ObjectInfo;
+ for (ObjectInfoMap::const_iterator infoI = objInfo.begin();
+ infoI != objInfo.end(); ++infoI) {
+ cmFortranSourceInfo const& info = infoI->second;
+ // Include this module in the set provided by this target.
+ this->Internal->TargetProvides.insert(info.Provides.begin(),
+ info.Provides.end());
+
+ for (std::set<std::string>::const_iterator i = info.Requires.begin();
+ i != info.Requires.end(); ++i) {
+ this->Internal->TargetRequires[*i] = "";
+ }
+ }
+
+ // Short-circuit for simple targets.
+ if (this->Internal->TargetRequires.empty()) {
+ return;
+ }
+
+ // Match modules provided by this target to those it requires.
+ this->MatchLocalModules();
+
+ // Load information about other targets.
+ cmMakefile* mf = this->LocalGenerator->GetMakefile();
+ std::vector<std::string> infoFiles;
+ if (const char* infoFilesValue =
+ mf->GetDefinition("CMAKE_TARGET_LINKED_INFO_FILES")) {
+ cmSystemTools::ExpandListArgument(infoFilesValue, infoFiles);
+ }
+ for (std::vector<std::string>::const_iterator i = infoFiles.begin();
+ i != infoFiles.end(); ++i) {
+ std::string targetDir = cmSystemTools::GetFilenamePath(*i);
+ std::string fname = targetDir + "/fortran.internal";
+ cmsys::ifstream fin(fname.c_str());
+ if (fin) {
+ this->MatchRemoteModules(fin, targetDir.c_str());
+ }
+ }
+}
+
+void cmDependsFortran::MatchLocalModules()
+{
+ const char* stampDir = this->TargetDirectory.c_str();
+ std::set<std::string> const& provides = this->Internal->TargetProvides;
+ for (std::set<std::string>::const_iterator i = provides.begin();
+ i != provides.end(); ++i) {
+ this->ConsiderModule(i->c_str(), stampDir);
+ }
+}
+
+void cmDependsFortran::MatchRemoteModules(std::istream& fin,
+ const char* stampDir)
+{
+ std::string line;
+ bool doing_provides = false;
+ while (cmSystemTools::GetLineFromStream(fin, line)) {
+ // Ignore comments and empty lines.
+ if (line.empty() || line[0] == '#' || line[0] == '\r') {
+ continue;
+ }
+
+ if (line[0] == ' ') {
+ if (doing_provides) {
+ this->ConsiderModule(line.c_str() + 1, stampDir);
+ }
+ } else if (line == "provides") {
+ doing_provides = true;
+ } else {
+ doing_provides = false;
+ }
+ }
+}
+
+void cmDependsFortran::ConsiderModule(const char* name, const char* stampDir)
+{
+ // Locate each required module.
+ typedef cmDependsFortranInternals::TargetRequiresMap TargetRequiresMap;
+ TargetRequiresMap::iterator required =
+ this->Internal->TargetRequires.find(name);
+ if (required != this->Internal->TargetRequires.end() &&
+ required->second.empty()) {
+ // The module is provided by a CMake target. It will have a stamp file.
+ std::string stampFile = stampDir;
+ stampFile += "/";
+ stampFile += name;
+ stampFile += ".mod.stamp";
+ required->second = stampFile;
+ }
+}
+
+bool cmDependsFortran::WriteDependenciesReal(const char* obj,
+ cmFortranSourceInfo const& info,
+ std::string const& mod_dir,
+ const char* stamp_dir,
+ std::ostream& makeDepends,
+ std::ostream& internalDepends)
+{
+ typedef cmDependsFortranInternals::TargetRequiresMap TargetRequiresMap;
+
+ // Get the source file for this object.
+ const char* src = info.Source.c_str();
+
+ // Write the include dependencies to the output stream.
+ std::string binDir = this->LocalGenerator->GetBinaryDirectory();
+ std::string obj_i = this->MaybeConvertToRelativePath(binDir, obj);
+ std::string obj_m = cmSystemTools::ConvertToOutputPath(obj_i.c_str());
+ internalDepends << obj_i << std::endl;
+ internalDepends << " " << src << std::endl;
+ for (std::set<std::string>::const_iterator i = info.Includes.begin();
+ i != info.Includes.end(); ++i) {
+ makeDepends << obj_m << ": "
+ << cmSystemTools::ConvertToOutputPath(
+ this->MaybeConvertToRelativePath(binDir, *i).c_str())
+ << std::endl;
+ internalDepends << " " << *i << std::endl;
+ }
+ makeDepends << std::endl;
+
+ // Write module requirements to the output stream.
+ for (std::set<std::string>::const_iterator i = info.Requires.begin();
+ i != info.Requires.end(); ++i) {
+ // Require only modules not provided in the same source.
+ if (std::set<std::string>::const_iterator(info.Provides.find(*i)) !=
+ info.Provides.end()) {
+ continue;
+ }
+
+ // If the module is provided in this target special handling is
+ // needed.
+ if (this->Internal->TargetProvides.find(*i) !=
+ this->Internal->TargetProvides.end()) {
+ // The module is provided by a different source in the same
+ // target. Add the proxy dependency to make sure the other
+ // source builds first.
+ std::string proxy = stamp_dir;
+ proxy += "/";
+ proxy += *i;
+ proxy += ".mod.proxy";
+ proxy = cmSystemTools::ConvertToOutputPath(
+ this->MaybeConvertToRelativePath(binDir, proxy).c_str());
+
+ // since we require some things add them to our list of requirements
+ makeDepends << obj_m << ".requires: " << proxy << std::endl;
+ }
+
+ // The object file should depend on timestamped files for the
+ // modules it uses.
+ TargetRequiresMap::const_iterator required =
+ this->Internal->TargetRequires.find(*i);
+ if (required == this->Internal->TargetRequires.end()) {
+ abort();
+ }
+ if (!required->second.empty()) {
+ // This module is known. Depend on its timestamp file.
+ std::string stampFile = cmSystemTools::ConvertToOutputPath(
+ this->MaybeConvertToRelativePath(binDir, required->second).c_str());
+ makeDepends << obj_m << ": " << stampFile << "\n";
+ } else {
+ // This module is not known to CMake. Try to locate it where
+ // the compiler will and depend on that.
+ std::string module;
+ if (this->FindModule(*i, module)) {
+ module = cmSystemTools::ConvertToOutputPath(
+ this->MaybeConvertToRelativePath(binDir, module).c_str());
+ makeDepends << obj_m << ": " << module << "\n";
+ }
+ }
+ }
+
+ // Write provided modules to the output stream.
+ for (std::set<std::string>::const_iterator i = info.Provides.begin();
+ i != info.Provides.end(); ++i) {
+ std::string proxy = stamp_dir;
+ proxy += "/";
+ proxy += *i;
+ proxy += ".mod.proxy";
+ proxy = cmSystemTools::ConvertToOutputPath(
+ this->MaybeConvertToRelativePath(binDir, proxy).c_str());
+ makeDepends << proxy << ": " << obj_m << ".provides" << std::endl;
+ }
+
+ // If any modules are provided then they must be converted to stamp files.
+ if (!info.Provides.empty()) {
+ // Create a target to copy the module after the object file
+ // changes.
+ makeDepends << obj_m << ".provides.build:\n";
+ for (std::set<std::string>::const_iterator i = info.Provides.begin();
+ i != info.Provides.end(); ++i) {
+ // Include this module in the set provided by this target.
+ this->Internal->TargetProvides.insert(*i);
+
+ // Always use lower case for the mod stamp file name. The
+ // cmake_copy_f90_mod will call back to this class, which will
+ // try various cases for the real mod file name.
+ std::string m = cmSystemTools::LowerCase(*i);
+ std::string modFile = mod_dir;
+ modFile += "/";
+ modFile += *i;
+ modFile = this->LocalGenerator->ConvertToOutputFormat(
+ this->MaybeConvertToRelativePath(binDir, modFile),
+ cmOutputConverter::SHELL);
+ std::string stampFile = stamp_dir;
+ stampFile += "/";
+ stampFile += m;
+ stampFile += ".mod.stamp";
+ stampFile = this->LocalGenerator->ConvertToOutputFormat(
+ this->MaybeConvertToRelativePath(binDir, stampFile),
+ cmOutputConverter::SHELL);
+ makeDepends << "\t$(CMAKE_COMMAND) -E cmake_copy_f90_mod " << modFile
+ << " " << stampFile;
+ cmMakefile* mf = this->LocalGenerator->GetMakefile();
+ const char* cid = mf->GetDefinition("CMAKE_Fortran_COMPILER_ID");
+ if (cid && *cid) {
+ makeDepends << " " << cid;
+ }
+ makeDepends << "\n";
+ }
+ // After copying the modules update the timestamp file so that
+ // copying will not be done again until the source rebuilds.
+ makeDepends << "\t$(CMAKE_COMMAND) -E touch " << obj_m
+ << ".provides.build\n";
+
+ // Make sure the module timestamp rule is evaluated by the time
+ // the target finishes building.
+ std::string driver = this->TargetDirectory;
+ driver += "/build";
+ driver = cmSystemTools::ConvertToOutputPath(
+ this->MaybeConvertToRelativePath(binDir, driver).c_str());
+ makeDepends << driver << ": " << obj_m << ".provides.build\n";
+ }
+
+ return true;
+}
+
+bool cmDependsFortran::FindModule(std::string const& name, std::string& module)
+{
+ // Construct possible names for the module file.
+ std::string mod_upper = cmSystemTools::UpperCase(name);
+ std::string mod_lower = name;
+ mod_upper += ".mod";
+ mod_lower += ".mod";
+
+ // Search the include path for the module.
+ std::string fullName;
+ for (std::vector<std::string>::const_iterator i = this->IncludePath.begin();
+ i != this->IncludePath.end(); ++i) {
+ // Try the lower-case name.
+ fullName = *i;
+ fullName += "/";
+ fullName += mod_lower;
+ if (cmSystemTools::FileExists(fullName.c_str(), true)) {
+ module = fullName;
+ return true;
+ }
+
+ // Try the upper-case name.
+ fullName = *i;
+ fullName += "/";
+ fullName += mod_upper;
+ if (cmSystemTools::FileExists(fullName.c_str(), true)) {
+ module = fullName;
+ return true;
+ }
+ }
+ return false;
+}
+
+bool cmDependsFortran::CopyModule(const std::vector<std::string>& args)
+{
+ // Implements
+ //
+ // $(CMAKE_COMMAND) -E cmake_copy_f90_mod input.mod output.mod.stamp
+ // [compiler-id]
+ //
+ // Note that the case of the .mod file depends on the compiler. In
+ // the future this copy could also account for the fact that some
+ // compilers include a timestamp in the .mod file so it changes even
+ // when the interface described in the module does not.
+
+ std::string mod = args[2];
+ std::string stamp = args[3];
+ std::string compilerId;
+ if (args.size() >= 5) {
+ compilerId = args[4];
+ }
+ std::string mod_dir = cmSystemTools::GetFilenamePath(mod);
+ if (!mod_dir.empty()) {
+ mod_dir += "/";
+ }
+ std::string mod_upper = mod_dir;
+ mod_upper += cmSystemTools::UpperCase(cmSystemTools::GetFilenameName(mod));
+ std::string mod_lower = mod_dir;
+ mod_lower += cmSystemTools::LowerCase(cmSystemTools::GetFilenameName(mod));
+ mod += ".mod";
+ mod_upper += ".mod";
+ mod_lower += ".mod";
+ if (cmSystemTools::FileExists(mod_upper.c_str(), true)) {
+ if (cmDependsFortran::ModulesDiffer(mod_upper.c_str(), stamp.c_str(),
+ compilerId.c_str())) {
+ if (!cmSystemTools::CopyFileAlways(mod_upper, stamp)) {
+ std::cerr << "Error copying Fortran module from \"" << mod_upper
+ << "\" to \"" << stamp << "\".\n";
+ return false;
+ }
+ }
+ return true;
+ }
+ if (cmSystemTools::FileExists(mod_lower.c_str(), true)) {
+ if (cmDependsFortran::ModulesDiffer(mod_lower.c_str(), stamp.c_str(),
+ compilerId.c_str())) {
+ if (!cmSystemTools::CopyFileAlways(mod_lower, stamp)) {
+ std::cerr << "Error copying Fortran module from \"" << mod_lower
+ << "\" to \"" << stamp << "\".\n";
+ return false;
+ }
+ }
+ return true;
+ }
+
+ std::cerr << "Error copying Fortran module \"" << args[2] << "\". Tried \""
+ << mod_upper << "\" and \"" << mod_lower << "\".\n";
+ return false;
+}
+
+// Helper function to look for a short sequence in a stream. If this
+// is later used for longer sequences it should be re-written using an
+// efficient string search algorithm such as Boyer-Moore.
+static bool cmFortranStreamContainsSequence(std::istream& ifs, const char* seq,
+ int len)
+{
+ assert(len > 0);
+
+ int cur = 0;
+ while (cur < len) {
+ // Get the next character.
+ int token = ifs.get();
+ if (!ifs) {
+ return false;
+ }
+
+ // Check the character.
+ if (token == static_cast<int>(seq[cur])) {
+ ++cur;
+ } else {
+ // Assume the sequence has no repeating subsequence.
+ cur = 0;
+ }
+ }
+
+ // The entire sequence was matched.
+ return true;
+}
+
+// Helper function to compare the remaining content in two streams.
+static bool cmFortranStreamsDiffer(std::istream& ifs1, std::istream& ifs2)
+{
+ // Compare the remaining content.
+ for (;;) {
+ int ifs1_c = ifs1.get();
+ int ifs2_c = ifs2.get();
+ if (!ifs1 && !ifs2) {
+ // We have reached the end of both streams simultaneously.
+ // The streams are identical.
+ return false;
+ }
+
+ if (!ifs1 || !ifs2 || ifs1_c != ifs2_c) {
+ // We have reached the end of one stream before the other or
+ // found differing content. The streams are different.
+ break;
+ }
+ }
+
+ return true;
+}
+
+bool cmDependsFortran::ModulesDiffer(const char* modFile,
+ const char* stampFile,
+ const char* compilerId)
+{
+ /*
+ gnu >= 4.9:
+ A mod file is an ascii file compressed with gzip.
+ Compiling twice produces identical modules.
+
+ gnu < 4.9:
+ A mod file is an ascii file.
+ <bar.mod>
+ FORTRAN module created from /path/to/foo.f90 on Sun Dec 30 22:47:58 2007
+ If you edit this, you'll get what you deserve.
+ ...
+ </bar.mod>
+ As you can see the first line contains the date.
+
+ intel:
+ A mod file is a binary file.
+ However, looking into both generated bar.mod files with a hex editor
+ shows that they differ only before a sequence linefeed-zero (0x0A 0x00)
+ which is located some bytes in front of the absoulte path to the source
+ file.
+
+ sun:
+ A mod file is a binary file. Compiling twice produces identical modules.
+
+ others:
+ TODO ...
+ */
+
+ /* Compilers which do _not_ produce different mod content when the same
+ * source is compiled twice
+ * -SunPro
+ */
+ if (strcmp(compilerId, "SunPro") == 0) {
+ return cmSystemTools::FilesDiffer(modFile, stampFile);
+ }
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+ cmsys::ifstream finModFile(modFile, std::ios::in | std::ios::binary);
+ cmsys::ifstream finStampFile(stampFile, std::ios::in | std::ios::binary);
+#else
+ cmsys::ifstream finModFile(modFile);
+ cmsys::ifstream finStampFile(stampFile);
+#endif
+ if (!finModFile || !finStampFile) {
+ // At least one of the files does not exist. The modules differ.
+ return true;
+ }
+
+ /* Compilers which _do_ produce different mod content when the same
+ * source is compiled twice
+ * -GNU
+ * -Intel
+ *
+ * Eat the stream content until all recompile only related changes
+ * are left behind.
+ */
+ if (strcmp(compilerId, "GNU") == 0) {
+ // GNU Fortran 4.9 and later compress .mod files with gzip
+ // but also do not include a date so we can fall through to
+ // compare them without skipping any prefix.
+ unsigned char hdr[2];
+ bool okay = !finModFile.read(reinterpret_cast<char*>(hdr), 2).fail();
+ finModFile.seekg(0);
+ if (!okay || hdr[0] != 0x1f || hdr[1] != 0x8b) {
+ const char seq[1] = { '\n' };
+ const int seqlen = 1;
+
+ if (!cmFortranStreamContainsSequence(finModFile, seq, seqlen)) {
+ // The module is of unexpected format. Assume it is different.
+ std::cerr << compilerId << " fortran module " << modFile
+ << " has unexpected format." << std::endl;
+ return true;
+ }
+
+ if (!cmFortranStreamContainsSequence(finStampFile, seq, seqlen)) {
+ // The stamp must differ if the sequence is not contained.
+ return true;
+ }
+ }
+ } else if (strcmp(compilerId, "Intel") == 0) {
+ const char seq[2] = { '\n', '\0' };
+ const int seqlen = 2;
+
+ // Skip the leading byte which appears to be a version number.
+ // We do not need to check for an error because the sequence search
+ // below will fail in that case.
+ finModFile.get();
+ finStampFile.get();
+
+ if (!cmFortranStreamContainsSequence(finModFile, seq, seqlen)) {
+ // The module is of unexpected format. Assume it is different.
+ std::cerr << compilerId << " fortran module " << modFile
+ << " has unexpected format." << std::endl;
+ return true;
+ }
+
+ if (!cmFortranStreamContainsSequence(finStampFile, seq, seqlen)) {
+ // The stamp must differ if the sequence is not contained.
+ return true;
+ }
+ }
+
+ // Compare the remaining content. If no compiler id matched above,
+ // including the case none was given, this will compare the whole
+ // content.
+ return cmFortranStreamsDiffer(finModFile, finStampFile);
+}
+
+std::string cmDependsFortran::MaybeConvertToRelativePath(
+ std::string const& base, std::string const& path)
+{
+ if (!cmOutputConverter::ContainedInDirectory(
+ base, path, this->LocalGenerator->GetStateSnapshot().GetDirectory())) {
+ return path;
+ }
+ return cmOutputConverter::ForceToRelativePath(base, path);
+}