ENH: Cleanup builtin chrpath support

  - Move computation of extended build-tree rpath
    to cmComputeLinkInformation
  - Only enable the extended build-tree rpath if
    the target will be installed
  - Generalize the interface of file(CHRPATH)
  - When changing the rpath on installation only
    replace the part generated by CMake because
    the native tools (ex SunCC on Linux) might have
    added their own part to the rpath

1 files changed, 12 insertions, 0 deletions

diff --git a/Source/cmComputeLinkInformation.cxx b/Source/cmComputeLinkInformation.cxx
index 554d8de..a3f8bab 100644
--- a/Source/cmComputeLinkInformation.cxx
+++ b/Source/cmComputeLinkInformation.cxx
@@ -1463,6 +1463,18 @@ std::string cmComputeLinkInformation::GetRPathString(bool for_install)
     // Add this path.
     rpath += *ri;
     }
+
+  // If the rpath will be replaced at install time make sure it is
+  // long enough now.
+  if(!for_install && this->RuntimeUseChrpath)
+    {
+    std::string::size_type minLength = this->GetChrpathString().length();
+    while(rpath.length() < minLength)
+      {
+      rpath += this->GetRuntimeSep();
+      }
+    }
+
   return rpath;
 }