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BUG: Linking to modules is for 2.2 compat only 

The compatibility check to allow linking to modules should test for
CMake 2.2, not the unreleased 2.3.  See issue #7500.  Furthermore, the
message should be more clear about fixing the code instead of setting
CMAKE_BACKWARDS_COMPATIBILITY unless one is just trying to build an
existing project.
This commit is contained in:
Brad King 2008-08-19 10:28:22 -04:00
parent 5264834868
commit 8ee5c92015
1 changed files with 11 additions and 8 deletions
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19
Source/cmMakefile.cxx
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@ -1222,24 +1222,27 @@ void cmMakefile::AddLinkLibraryForTarget(const char *target,
if(tgt)
{
// CMake versions below 2.4 allowed linking to modules.
bool allowModules = this->NeedBackwardsCompatibility(2,3);
bool allowModules = this->NeedBackwardsCompatibility(2,2);
// if it is not a static or shared library then you can not link to it
if(!((tgt->GetType() == cmTarget::STATIC_LIBRARY) ||
(tgt->GetType() == cmTarget::SHARED_LIBRARY) ||
tgt->IsExecutableWithExports()))
{
cmOStringStream e;
e << "Attempt to add link target " << lib << " of type: "
e << "Target \"" << lib << "\" of type "
<< cmTarget::TargetTypeNames[static_cast<int>(tgt->GetType())]
<< "\nto target " << target
<< ". One can only link to STATIC or SHARED libraries, or "
<< " may not be linked into another target. "
<< "One may link only to STATIC or SHARED libraries, or "
<< "to executables with the ENABLE_EXPORTS property set.";
// in older versions of cmake linking to modules was allowed
if( tgt->GetType() == cmTarget::MODULE_LIBRARY )
{
e <<
"\nTo allow linking of modules set "
"CMAKE_BACKWARDS_COMPATIBILITY to 2.2 or lower\n";
e << "\n"
<< "If you are developing a new project, re-organize it to avoid "
<< "linking to modules. "
<< "If you are just trying to build an existing project, "
<< "set CMAKE_BACKWARDS_COMPATIBILITY to 2.2 or lower to allow "
<< "linking to modules.";
}
// if no modules are allowed then this is always an error
if(!allowModules ||
@ -1247,7 +1250,7 @@ void cmMakefile::AddLinkLibraryForTarget(const char *target,
// still an error
(allowModules && tgt->GetType() != cmTarget::MODULE_LIBRARY))
{
cmSystemTools::Error(e.str().c_str());
this->IssueMessage(cmake::FATAL_ERROR, e.str().c_str());
}
}
}