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-rw-r--r--Source/cmTarget.cxx511
1 files changed, 295 insertions, 216 deletions
diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 7a0df74..1c2b27a 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -89,17 +89,12 @@ public:
cmTargetInternals()
{
this->PolicyWarnedCMP0022 = false;
- this->SourceFileFlagsConstructed = false;
}
cmTargetInternals(cmTargetInternals const&)
{
this->PolicyWarnedCMP0022 = false;
- this->SourceFileFlagsConstructed = false;
}
~cmTargetInternals();
- typedef cmTarget::SourceFileFlags SourceFileFlags;
- mutable std::map<cmSourceFile const*, SourceFileFlags> SourceFlagsMap;
- mutable bool SourceFileFlagsConstructed;
// The backtrace when the target was created.
cmListFileBacktrace Backtrace;
@@ -107,9 +102,17 @@ public:
// Cache link interface computation from each configuration.
struct OptionalLinkInterface: public cmTarget::LinkInterface
{
- OptionalLinkInterface(): Exists(false) {}
+ OptionalLinkInterface():
+ Exists(false), Complete(false), ExplicitLibraries(0) {}
bool Exists;
+ bool Complete;
+ const char* ExplicitLibraries;
};
+ void ComputeLinkInterface(cmTarget const* thisTarget,
+ const char* config, OptionalLinkInterface& iface,
+ cmTarget const* head,
+ const char *explicitLibraries) const;
+
typedef std::map<TargetConfigPair, OptionalLinkInterface>
LinkInterfaceMapType;
LinkInterfaceMapType LinkInterfaceMap;
@@ -538,10 +541,11 @@ bool cmTarget::IsBundleOnApple() const
}
//----------------------------------------------------------------------------
-bool cmTarget::FindSourceFiles()
+void cmTarget::GetSourceFiles(std::vector<cmSourceFile*> &files) const
{
+ assert(this->GetType() != INTERFACE_LIBRARY);
for(std::vector<cmSourceFile*>::const_iterator
- si = this->SourceFiles.begin();
+ si = this->SourceFiles.begin();
si != this->SourceFiles.end(); ++si)
{
std::string e;
@@ -553,16 +557,9 @@ bool cmTarget::FindSourceFiles()
cm->IssueMessage(cmake::FATAL_ERROR, e,
this->GetBacktrace());
}
- return false;
+ return;
}
}
- return true;
-}
-
-//----------------------------------------------------------------------------
-void cmTarget::GetSourceFiles(std::vector<cmSourceFile*> &files) const
-{
- assert(this->GetType() != INTERFACE_LIBRARY);
files = this->SourceFiles;
}
@@ -659,109 +656,6 @@ void cmTarget::ProcessSourceExpression(std::string const& expr)
}
//----------------------------------------------------------------------------
-struct cmTarget::SourceFileFlags
-cmTarget::GetTargetSourceFileFlags(const cmSourceFile* sf) const
-{
- struct SourceFileFlags flags;
- this->ConstructSourceFileFlags();
- std::map<cmSourceFile const*, SourceFileFlags>::iterator si =
- this->Internal->SourceFlagsMap.find(sf);
- if(si != this->Internal->SourceFlagsMap.end())
- {
- flags = si->second;
- }
- return flags;
-}
-
-//----------------------------------------------------------------------------
-void cmTarget::ConstructSourceFileFlags() const
-{
- if(this->Internal->SourceFileFlagsConstructed)
- {
- return;
- }
- this->Internal->SourceFileFlagsConstructed = true;
-
- // Process public headers to mark the source files.
- if(const char* files = this->GetProperty("PUBLIC_HEADER"))
- {
- std::vector<std::string> relFiles;
- cmSystemTools::ExpandListArgument(files, relFiles);
- for(std::vector<std::string>::iterator it = relFiles.begin();
- it != relFiles.end(); ++it)
- {
- if(cmSourceFile* sf = this->Makefile->GetSource(it->c_str()))
- {
- SourceFileFlags& flags = this->Internal->SourceFlagsMap[sf];
- flags.MacFolder = "Headers";
- flags.Type = cmTarget::SourceFileTypePublicHeader;
- }
- }
- }
-
- // Process private headers after public headers so that they take
- // precedence if a file is listed in both.
- if(const char* files = this->GetProperty("PRIVATE_HEADER"))
- {
- std::vector<std::string> relFiles;
- cmSystemTools::ExpandListArgument(files, relFiles);
- for(std::vector<std::string>::iterator it = relFiles.begin();
- it != relFiles.end(); ++it)
- {
- if(cmSourceFile* sf = this->Makefile->GetSource(it->c_str()))
- {
- SourceFileFlags& flags = this->Internal->SourceFlagsMap[sf];
- flags.MacFolder = "PrivateHeaders";
- flags.Type = cmTarget::SourceFileTypePrivateHeader;
- }
- }
- }
-
- // Mark sources listed as resources.
- if(const char* files = this->GetProperty("RESOURCE"))
- {
- std::vector<std::string> relFiles;
- cmSystemTools::ExpandListArgument(files, relFiles);
- for(std::vector<std::string>::iterator it = relFiles.begin();
- it != relFiles.end(); ++it)
- {
- if(cmSourceFile* sf = this->Makefile->GetSource(it->c_str()))
- {
- SourceFileFlags& flags = this->Internal->SourceFlagsMap[sf];
- flags.MacFolder = "Resources";
- flags.Type = cmTarget::SourceFileTypeResource;
- }
- }
- }
-
- // Handle the MACOSX_PACKAGE_LOCATION property on source files that
- // were not listed in one of the other lists.
- std::vector<cmSourceFile*> sources;
- this->GetSourceFiles(sources);
- for(std::vector<cmSourceFile*>::const_iterator si = sources.begin();
- si != sources.end(); ++si)
- {
- cmSourceFile* sf = *si;
- if(const char* location = sf->GetProperty("MACOSX_PACKAGE_LOCATION"))
- {
- SourceFileFlags& flags = this->Internal->SourceFlagsMap[sf];
- if(flags.Type == cmTarget::SourceFileTypeNormal)
- {
- flags.MacFolder = location;
- if(strcmp(location, "Resources") == 0)
- {
- flags.Type = cmTarget::SourceFileTypeResource;
- }
- else
- {
- flags.Type = cmTarget::SourceFileTypeMacContent;
- }
- }
- }
- }
-}
-
-//----------------------------------------------------------------------------
void cmTarget::MergeLinkLibraries( cmMakefile& mf,
const char *selfname,
const LinkLibraryVectorType& libs )
@@ -4633,12 +4527,13 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget const* tgt,
assert((impliedByUse ^ explicitlySet)
|| (!impliedByUse && !explicitlySet));
- cmComputeLinkInformation *info = tgt->GetLinkInformation(config);
- if(!info)
+ std::vector<cmTarget*> deps;
+ tgt->GetTransitiveTargetClosure(config, tgt, deps);
+
+ if(deps.empty())
{
return propContent;
}
- const cmComputeLinkInformation::ItemVector &deps = info->GetItems();
bool propInitialized = explicitlySet;
std::string report = " * Target \"";
@@ -4658,7 +4553,7 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget const* tgt,
report += "\" property not set.\n";
}
- for(cmComputeLinkInformation::ItemVector::const_iterator li =
+ for(std::vector<cmTarget*>::const_iterator li =
deps.begin();
li != deps.end(); ++li)
{
@@ -4668,23 +4563,20 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget const* tgt,
// target itself has a POSITION_INDEPENDENT_CODE which disagrees
// with a dependency.
- if (!li->Target)
- {
- continue;
- }
+ cmTarget const* theTarget = *li;
- const bool ifaceIsSet = li->Target->GetProperties()
+ const bool ifaceIsSet = theTarget->GetProperties()
.find("INTERFACE_" + p)
- != li->Target->GetProperties().end();
+ != theTarget->GetProperties().end();
PropertyType ifacePropContent =
- getTypedProperty<PropertyType>(li->Target,
+ getTypedProperty<PropertyType>(theTarget,
("INTERFACE_" + p).c_str(), 0);
std::string reportEntry;
if (ifaceIsSet)
{
reportEntry += " * Target \"";
- reportEntry += li->Target->GetName();
+ reportEntry += theTarget->GetName();
reportEntry += "\" property value \"";
reportEntry += valueAsString<PropertyType>(ifacePropContent);
reportEntry += "\" ";
@@ -4705,7 +4597,7 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget const* tgt,
e << "Property " << p << " on target \""
<< tgt->GetName() << "\" does\nnot match the "
"INTERFACE_" << p << " property requirement\nof "
- "dependency \"" << li->Target->GetName() << "\".\n";
+ "dependency \"" << theTarget->GetName() << "\".\n";
cmSystemTools::Error(e.str().c_str());
break;
}
@@ -4739,7 +4631,7 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget const* tgt,
<< tgt->GetName() << "\" is\nimplied to be " << defaultValue
<< " because it was used to determine the link libraries\n"
"already. The INTERFACE_" << p << " property on\ndependency \""
- << li->Target->GetName() << "\" is in conflict.\n";
+ << theTarget->GetName() << "\" is in conflict.\n";
cmSystemTools::Error(e.str().c_str());
break;
}
@@ -4770,7 +4662,7 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget const* tgt,
{
cmOStringStream e;
e << "The INTERFACE_" << p << " property of \""
- << li->Target->GetName() << "\" does\nnot agree with the value "
+ << theTarget->GetName() << "\" does\nnot agree with the value "
"of " << p << " already determined\nfor \""
<< tgt->GetName() << "\".\n";
cmSystemTools::Error(e.str().c_str());
@@ -4851,23 +4743,19 @@ bool isLinkDependentProperty(cmTarget const* tgt, const std::string &p,
const char *interfaceProperty,
const char *config)
{
- cmComputeLinkInformation *info = tgt->GetLinkInformation(config);
- if(!info)
+ std::vector<cmTarget*> deps;
+ tgt->GetTransitiveTargetClosure(config, tgt, deps);
+
+ if(deps.empty())
{
return false;
}
- const cmComputeLinkInformation::ItemVector &deps = info->GetItems();
-
- for(cmComputeLinkInformation::ItemVector::const_iterator li =
+ for(std::vector<cmTarget*>::const_iterator li =
deps.begin();
li != deps.end(); ++li)
{
- if (!li->Target)
- {
- continue;
- }
- const char *prop = li->Target->GetProperty(interfaceProperty);
+ const char *prop = (*li)->GetProperty(interfaceProperty);
if (!prop)
{
continue;
@@ -5419,24 +5307,124 @@ cmTarget::LinkInterface const* cmTarget::GetLinkInterface(const char* config,
{
// Compute the link interface for this configuration.
cmTargetInternals::OptionalLinkInterface iface;
- iface.Exists = this->ComputeLinkInterface(config, iface, head);
+ iface.ExplicitLibraries =
+ this->ComputeLinkInterfaceLibraries(config, iface, head, iface.Exists);
+ if (iface.Exists)
+ {
+ this->Internal->ComputeLinkInterface(this, config, iface,
+ head, iface.ExplicitLibraries);
+ }
+
+ // Store the information for this configuration.
+ cmTargetInternals::LinkInterfaceMapType::value_type entry(key, iface);
+ i = this->Internal->LinkInterfaceMap.insert(entry).first;
+ }
+ else if(!i->second.Complete && i->second.Exists)
+ {
+ this->Internal->ComputeLinkInterface(this, config, i->second, head,
+ i->second.ExplicitLibraries);
+ }
+
+ return i->second.Exists ? &i->second : 0;
+}
+
+//----------------------------------------------------------------------------
+cmTarget::LinkInterface const*
+cmTarget::GetLinkInterfaceLibraries(const char* config,
+ cmTarget const* head) const
+{
+ // Imported targets have their own link interface.
+ if(this->IsImported())
+ {
+ if(cmTarget::ImportInfo const* info = this->GetImportInfo(config, head))
+ {
+ return &info->LinkInterface;
+ }
+ return 0;
+ }
+
+ // Link interfaces are not supported for executables that do not
+ // export symbols.
+ if(this->GetType() == cmTarget::EXECUTABLE &&
+ !this->IsExecutableWithExports())
+ {
+ return 0;
+ }
+
+ // Lookup any existing link interface for this configuration.
+ TargetConfigPair key(head, cmSystemTools::UpperCase(config? config : ""));
+
+ cmTargetInternals::LinkInterfaceMapType::iterator
+ i = this->Internal->LinkInterfaceMap.find(key);
+ if(i == this->Internal->LinkInterfaceMap.end())
+ {
+ // Compute the link interface for this configuration.
+ cmTargetInternals::OptionalLinkInterface iface;
+ iface.ExplicitLibraries = this->ComputeLinkInterfaceLibraries(config,
+ iface,
+ head,
+ iface.Exists);
// Store the information for this configuration.
cmTargetInternals::LinkInterfaceMapType::value_type entry(key, iface);
i = this->Internal->LinkInterfaceMap.insert(entry).first;
}
- return i->second.Exists? &i->second : 0;
+ return i->second.Exists ? &i->second : 0;
+}
+
+//----------------------------------------------------------------------------
+void processILibs(const char* config,
+ cmTarget const* headTarget,
+ std::string const& name,
+ std::vector<cmTarget*>& tgts, std::set<cmTarget*>& emitted)
+{
+ if (cmTarget* tgt = headTarget->GetMakefile()
+ ->FindTargetToUse(name.c_str()))
+ {
+ if (emitted.insert(tgt).second)
+ {
+ tgts.push_back(tgt);
+ std::vector<std::string> ilibs;
+ cmTarget::LinkInterface const* iface =
+ tgt->GetLinkInterfaceLibraries(config, headTarget);
+ if (iface)
+ {
+ for(std::vector<std::string>::const_iterator
+ it = iface->Libraries.begin();
+ it != iface->Libraries.end(); ++it)
+ {
+ processILibs(config, headTarget, *it, tgts, emitted);
+ }
+ }
+ }
+ }
+}
+
+//----------------------------------------------------------------------------
+void cmTarget::GetTransitiveTargetClosure(const char* config,
+ cmTarget const* headTarget,
+ std::vector<cmTarget*> &tgts) const
+{
+ std::set<cmTarget*> emitted;
+
+ cmTarget::LinkImplementation const* impl
+ = this->GetLinkImplementationLibraries(config, headTarget);
+
+ for(std::vector<std::string>::const_iterator it = impl->Libraries.begin();
+ it != impl->Libraries.end(); ++it)
+ {
+ processILibs(config, headTarget, *it, tgts, emitted);
+ }
}
//----------------------------------------------------------------------------
-void cmTarget::GetTransitivePropertyLinkLibraries(
- const char* config,
+void cmTarget::GetTransitivePropertyTargets(const char* config,
cmTarget const* headTarget,
- std::vector<std::string> &libs) const
+ std::vector<cmTarget*> &tgts) const
{
- cmTarget::LinkInterface const* iface = this->GetLinkInterface(config,
- headTarget);
+ cmTarget::LinkInterface const* iface
+ = this->GetLinkInterfaceLibraries(config, headTarget);
if (!iface)
{
return;
@@ -5445,7 +5433,15 @@ void cmTarget::GetTransitivePropertyLinkLibraries(
|| this->GetPolicyStatusCMP0022() == cmPolicies::WARN
|| this->GetPolicyStatusCMP0022() == cmPolicies::OLD)
{
- libs = iface->Libraries;
+ for(std::vector<std::string>::const_iterator it = iface->Libraries.begin();
+ it != iface->Libraries.end(); ++it)
+ {
+ if (cmTarget* tgt = headTarget->GetMakefile()
+ ->FindTargetToUse(it->c_str()))
+ {
+ tgts.push_back(tgt);
+ }
+ }
return;
}
@@ -5463,17 +5459,30 @@ void cmTarget::GetTransitivePropertyLinkLibraries(
cmGeneratorExpressionDAGChecker dagChecker(lfbt, this->GetName(),
linkIfaceProp, 0, 0);
dagChecker.SetTransitivePropertiesOnly();
+ std::vector<std::string> libs;
cmSystemTools::ExpandListArgument(ge.Parse(interfaceLibs)->Evaluate(
this->Makefile,
config,
false,
headTarget,
this, &dagChecker), libs);
+
+ for(std::vector<std::string>::const_iterator it = libs.begin();
+ it != libs.end(); ++it)
+ {
+ if (cmTarget* tgt = headTarget->GetMakefile()
+ ->FindTargetToUse(it->c_str()))
+ {
+ tgts.push_back(tgt);
+ }
+ }
}
//----------------------------------------------------------------------------
-bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
- cmTarget const* headTarget) const
+const char* cmTarget::ComputeLinkInterfaceLibraries(const char* config,
+ LinkInterface& iface,
+ cmTarget const* headTarget,
+ bool &exists) const
{
// Construct the property name suffix for this configuration.
std::string suffix = "_";
@@ -5549,8 +5558,10 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
(this->GetType() == cmTarget::EXECUTABLE ||
(this->GetType() == cmTarget::MODULE_LIBRARY)))
{
- return false;
+ exists = false;
+ return 0;
}
+ exists = true;
if(explicitLibraries)
{
@@ -5565,52 +5576,6 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
false,
headTarget,
this, &dagChecker), iface.Libraries);
-
- if(this->GetType() == cmTarget::SHARED_LIBRARY
- || this->GetType() == cmTarget::STATIC_LIBRARY
- || this->GetType() == cmTarget::INTERFACE_LIBRARY)
- {
- // Shared libraries may have runtime implementation dependencies
- // on other shared libraries that are not in the interface.
- std::set<cmStdString> emitted;
- for(std::vector<std::string>::const_iterator
- li = iface.Libraries.begin(); li != iface.Libraries.end(); ++li)
- {
- emitted.insert(*li);
- }
- if (this->GetType() != cmTarget::INTERFACE_LIBRARY)
- {
- LinkImplementation const* impl = this->GetLinkImplementation(config,
- headTarget);
- for(std::vector<std::string>::const_iterator
- li = impl->Libraries.begin(); li != impl->Libraries.end(); ++li)
- {
- if(emitted.insert(*li).second)
- {
- if(cmTarget* tgt = this->Makefile->FindTargetToUse(*li))
- {
- // This is a runtime dependency on another shared library.
- if(tgt->GetType() == cmTarget::SHARED_LIBRARY)
- {
- iface.SharedDeps.push_back(*li);
- }
- }
- else
- {
- // TODO: Recognize shared library file names. Perhaps this
- // should be moved to cmComputeLinkInformation, but that creates
- // a chicken-and-egg problem since this list is needed for its
- // construction.
- }
- }
- }
- if(this->LinkLanguagePropagatesToDependents())
- {
- // Targets using this archive need its language runtime libraries.
- iface.Languages = impl->Languages;
- }
- }
- }
}
else if (this->PolicyStatusCMP0022 == cmPolicies::WARN
|| this->PolicyStatusCMP0022 == cmPolicies::OLD)
@@ -5620,17 +5585,9 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
// to the link implementation.
{
// The link implementation is the default link interface.
- LinkImplementation const* impl = this->GetLinkImplementation(config,
- headTarget);
- iface.ImplementationIsInterface = true;
+ LinkImplementation const* impl =
+ this->GetLinkImplementationLibraries(config, headTarget);
iface.Libraries = impl->Libraries;
- iface.WrongConfigLibraries = impl->WrongConfigLibraries;
- if(this->LinkLanguagePropagatesToDependents())
- {
- // Targets using this archive need its language runtime libraries.
- iface.Languages = impl->Languages;
- }
-
if(this->PolicyStatusCMP0022 == cmPolicies::WARN &&
!this->Internal->PolicyWarnedCMP0022)
{
@@ -5695,25 +5652,107 @@ bool cmTarget::ComputeLinkInterface(const char* config, LinkInterface& iface,
}
}
}
+ return explicitLibraries;
+}
- if(this->GetType() == cmTarget::STATIC_LIBRARY)
+//----------------------------------------------------------------------------
+void cmTargetInternals::ComputeLinkInterface(cmTarget const* thisTarget,
+ const char* config,
+ OptionalLinkInterface& iface,
+ cmTarget const* headTarget,
+ const char* explicitLibraries) const
+{
+ if(explicitLibraries)
+ {
+ if(thisTarget->GetType() == cmTarget::SHARED_LIBRARY
+ || thisTarget->GetType() == cmTarget::STATIC_LIBRARY
+ || thisTarget->GetType() == cmTarget::INTERFACE_LIBRARY)
+ {
+ // Shared libraries may have runtime implementation dependencies
+ // on other shared libraries that are not in the interface.
+ std::set<cmStdString> emitted;
+ for(std::vector<std::string>::const_iterator
+ li = iface.Libraries.begin(); li != iface.Libraries.end(); ++li)
+ {
+ emitted.insert(*li);
+ }
+ if (thisTarget->GetType() != cmTarget::INTERFACE_LIBRARY)
+ {
+ cmTarget::LinkImplementation const* impl =
+ thisTarget->GetLinkImplementation(config, headTarget);
+ for(std::vector<std::string>::const_iterator
+ li = impl->Libraries.begin(); li != impl->Libraries.end(); ++li)
+ {
+ if(emitted.insert(*li).second)
+ {
+ if(cmTarget* tgt = thisTarget->Makefile->FindTargetToUse(*li))
+ {
+ // This is a runtime dependency on another shared library.
+ if(tgt->GetType() == cmTarget::SHARED_LIBRARY)
+ {
+ iface.SharedDeps.push_back(*li);
+ }
+ }
+ else
+ {
+ // TODO: Recognize shared library file names. Perhaps this
+ // should be moved to cmComputeLinkInformation, but that creates
+ // a chicken-and-egg problem since this list is needed for its
+ // construction.
+ }
+ }
+ }
+ if(thisTarget->LinkLanguagePropagatesToDependents())
+ {
+ // Targets using this archive need its language runtime libraries.
+ iface.Languages = impl->Languages;
+ }
+ }
+ }
+ }
+ else if (thisTarget->PolicyStatusCMP0022 == cmPolicies::WARN
+ || thisTarget->PolicyStatusCMP0022 == cmPolicies::OLD)
+ {
+ // The link implementation is the default link interface.
+ cmTarget::LinkImplementation const*
+ impl = thisTarget->GetLinkImplementation(config, headTarget);
+ iface.ImplementationIsInterface = true;
+ iface.WrongConfigLibraries = impl->WrongConfigLibraries;
+ if(thisTarget->LinkLanguagePropagatesToDependents())
+ {
+ // Targets using this archive need its language runtime libraries.
+ iface.Languages = impl->Languages;
+ }
+ }
+
+ if(thisTarget->GetType() == cmTarget::STATIC_LIBRARY)
{
+ // Construct the property name suffix for this configuration.
+ std::string suffix = "_";
+ if(config && *config)
+ {
+ suffix += cmSystemTools::UpperCase(config);
+ }
+ else
+ {
+ suffix += "NOCONFIG";
+ }
+
// How many repetitions are needed if this library has cyclic
// dependencies?
std::string propName = "LINK_INTERFACE_MULTIPLICITY";
propName += suffix;
- if(const char* config_reps = this->GetProperty(propName.c_str()))
+ if(const char* config_reps = thisTarget->GetProperty(propName.c_str()))
{
sscanf(config_reps, "%u", &iface.Multiplicity);
}
else if(const char* reps =
- this->GetProperty("LINK_INTERFACE_MULTIPLICITY"))
+ thisTarget->GetProperty("LINK_INTERFACE_MULTIPLICITY"))
{
sscanf(reps, "%u", &iface.Multiplicity);
}
}
-
- return true;
+ iface.Complete = true;
}
//----------------------------------------------------------------------------
@@ -5736,6 +5775,41 @@ cmTarget::GetLinkImplementation(const char* config, cmTarget const* head) const
// Compute the link implementation for this configuration.
LinkImplementation impl;
this->ComputeLinkImplementation(config, impl, head);
+ this->ComputeLinkImplementationLanguages(impl);
+
+ // Store the information for this configuration.
+ cmTargetInternals::LinkImplMapType::value_type entry(key, impl);
+ i = this->Internal->LinkImplMap.insert(entry).first;
+ }
+ else if (i->second.Languages.empty())
+ {
+ this->ComputeLinkImplementationLanguages(i->second);
+ }
+
+ return &i->second;
+}
+
+//----------------------------------------------------------------------------
+cmTarget::LinkImplementation const*
+cmTarget::GetLinkImplementationLibraries(const char* config,
+ cmTarget const* head) const
+{
+ // There is no link implementation for imported targets.
+ if(this->IsImported())
+ {
+ return 0;
+ }
+
+ // Lookup any existing link implementation for this configuration.
+ TargetConfigPair key(head, cmSystemTools::UpperCase(config? config : ""));
+
+ cmTargetInternals::LinkImplMapType::iterator
+ i = this->Internal->LinkImplMap.find(key);
+ if(i == this->Internal->LinkImplMap.end())
+ {
+ // Compute the link implementation for this configuration.
+ LinkImplementation impl;
+ this->ComputeLinkImplementation(config, impl, head);
// Store the information for this configuration.
cmTargetInternals::LinkImplMapType::value_type entry(key, impl);
@@ -5818,7 +5892,12 @@ void cmTarget::ComputeLinkImplementation(const char* config,
impl.WrongConfigLibraries.push_back(item);
}
}
+}
+//----------------------------------------------------------------------------
+void
+cmTarget::ComputeLinkImplementationLanguages(LinkImplementation& impl) const
+{
// This target needs runtime libraries for its source languages.
std::set<cmStdString> languages;
// Get languages used in our source files.