Make CMAKE_LINK_LIBRARY_FILE_FLAG work like CMAKE_LINK_LIBRARY_FLAG

The `CMAKE_LINK_LIBRARY_FILE_FLAG` variable is meant for linkers that
want library file paths to be preceded by a flag.  This is used only
for OpenWatcom to add the `library` argument before library file paths.
Refactor the approach to treat `CMAKE_LINK_LIBRARY_FILE_FLAG` as a
command-line string fragment to add just before the library file path.
This has two advantages:

* `CMAKE_LINK_LIBRARY_FILE_FLAG` now works like `CMAKE_LINK_LIBRARY_FLAG`.
* `CMAKE_LINK_LIBRARY_FILE_FLAG` can now be an attached flag whose value
  is the library file path.

Technically this is a change in behavior, but this setting was created
for internal use and should be rarely used outside of CMake itself.

Fixes: #19541

1 files changed, 5 insertions, 0 deletions

diff --git a/Source/cmComputeLinkInformation.h b/Source/cmComputeLinkInformation.h
index 3be2c7f..784d3fa 100644
--- a/Source/cmComputeLinkInformation.h
+++ b/Source/cmComputeLinkInformation.h
@@ -56,6 +56,11 @@ public:
   std::string GetChrpathString() const;
   std::set<cmGeneratorTarget const*> const& GetSharedLibrariesLinked() const;
 
+  std::string const& GetLibLinkFileFlag() const
+  {
+    return this->LibLinkFileFlag;
+  }
+
   std::string const& GetRPathLinkFlag() const { return this->RPathLinkFlag; }
   std::string GetRPathLinkString() const;