ENH: Improve linking to third-party shared libraries on soname platforms

  - Reduce false positives in cases of unknown soname
  - Make library extension regular expressions match only at end of string
  - When linking to libraries in implicit dirs convert to the -l option
    only if the file name is one that can be found by the linker
    (ex. /usr/lib/libfoo.so.1 should be linked by full path)
  - Add cmSystemTools::GuessLibrarySOName to guess the soname of a
    library based on presence of a symlink
  - In cmComputeLinkInformation try to guess an soname before assuming
    that a third-party library is built without an soname
  - In cmOrderDirectories guess the soname of shared libraries in cases
    it is otherwise unknown

1 files changed, 4 insertions, 0 deletions

diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 3bf22f7..e03c24c 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -377,6 +377,10 @@ public:
                                 bool newLine, bool enabled);
 #endif
 
+  /** Try to guess the soname of a shared library.  */
+  static bool GuessLibrarySOName(std::string const& fullPath,
+                                 std::string& soname);
+
 private:
   static bool s_ForceUnixPaths;
   static bool s_RunCommandHideConsole;