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-rw-r--r--Source/cmLocalGenerator.cxx23
-rw-r--r--Source/cmLocalGenerator.h1
2 files changed, 22 insertions, 2 deletions
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index d5260a9..b2132f1 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -136,6 +136,7 @@ void cmLocalGenerator::Configure()
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
}
}
+ this->ObjectMaxPathViolations.clear();
}
this->Configured = true;
@@ -2536,8 +2537,26 @@ cmLocalGenerator
}
#if defined(CM_LG_ENCODE_OBJECT_NAMES)
- cmLocalGeneratorCheckObjectName(ssin, dir_max.size(),
- this->ObjectPathMax);
+ if(!cmLocalGeneratorCheckObjectName(ssin, dir_max.size(),
+ this->ObjectPathMax))
+ {
+ // Warn if this is the first time the path has been seen.
+ if(this->ObjectMaxPathViolations.insert(dir_max).second)
+ {
+ cmOStringStream m;
+ m << "The object file directory\n"
+ << " " << dir_max << "\n"
+ << "has " << dir_max.size() << " characters. "
+ << "The maximum full path to an object file is "
+ << this->ObjectPathMax << " characters "
+ << "(see CMAKE_OBJECT_PATH_MAX). "
+ << "Object file\n"
+ << " " << ssin << "\n"
+ << "cannot be safely placed under this directory. "
+ << "The build may not work correctly.";
+ this->Makefile->IssueMessage(cmake::WARNING, m.str());
+ }
+ }
#else
(void)dir_max;
#endif
diff --git a/Source/cmLocalGenerator.h b/Source/cmLocalGenerator.h
index 0f4c1e9..5f962ad 100644
--- a/Source/cmLocalGenerator.h
+++ b/Source/cmLocalGenerator.h
@@ -370,6 +370,7 @@ protected:
std::map<cmStdString, cmStdString> LanguageToIncludeFlags;
std::map<cmStdString, cmStdString> UniqueObjectNamesMap;
std::string::size_type ObjectPathMax;
+ std::set<cmStdString> ObjectMaxPathViolations;
bool WindowsShell;
bool WindowsVSIDE;
bool WatcomWMake;