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, 1 insertions, 0 deletions

diff --git a/Source/cmLinkLineComputer.cxx b/Source/cmLinkLineComputer.cxx
index 8746b35..4430f97 100644
--- a/Source/cmLinkLineComputer.cxx
+++ b/Source/cmLinkLineComputer.cxx
@@ -63,6 +63,7 @@ std::string cmLinkLineComputer::ComputeLinkLibs(cmComputeLinkInformation& cli)
       continue;
     }
     if (item.IsPath) {
+      linkLibs += cli.GetLibLinkFileFlag();
       linkLibs +=
         this->ConvertToOutputFormat(this->ConvertToLinkReference(item.Value));
     } else {