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Improve unused warning logic 

Only warn when changing the definition of an initialized variable.
This commit is contained in:
Ben Boeckel 2010-09-15 11:41:27 -04:00
parent e01e40cb87
commit e49a935c20
1 changed files with 4 additions and 4 deletions
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8
Source/cmMakefile.cxx
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@ -1649,12 +1649,12 @@ void cmMakefile::AddDefinition(const char* name, const char* value)
#endif
this->Internal->VarStack.top().Set(name, value);
this->Internal->VarInitStack.top().insert(name);
if (this->Internal->VarUsageStack.size() > 1)
if ((this->Internal->VarUsageStack.size() > 1) && this->VariableInitialized(name))
{
this->CheckForUnused("changing definition", name);
this->Internal->VarUsageStack.top().erase(name);
}
this->Internal->VarInitStack.top().insert(name);
#ifdef CMAKE_BUILD_WITH_CMAKE
cmVariableWatch* vv = this->GetVariableWatch();
@ -1719,12 +1719,12 @@ void cmMakefile::AddCacheDefinition(const char* name, const char* value,
void cmMakefile::AddDefinition(const char* name, bool value)
{
this->Internal->VarStack.top().Set(name, value? "ON" : "OFF");
this->Internal->VarInitStack.top().insert(name);
if (this->Internal->VarUsageStack.size() > 1)
if ((this->Internal->VarUsageStack.size() > 1) && this->VariableInitialized(name))
{
this->CheckForUnused("changing definition", name);
this->Internal->VarUsageStack.top().erase(name);
}
this->Internal->VarInitStack.top().insert(name);
#ifdef CMAKE_BUILD_WITH_CMAKE
cmVariableWatch* vv = this->GetVariableWatch();
if ( vv )