Commit 18769dd6 for xz

commit 18769dd6927f16562008aee01ab1466c3035110e
Author: Lasse Collin <lasse.collin@tukaani.org>
Date:   Sat Aug 15 18:55:25 2026 +0300

    CMake: Don't put test binaries in a subdirectory

    This can matter on Windows:

     - MSVC puts the binaries into subdirectories based on build type
       (like "Debug" or "Release"), and then the test executables won't
       find liblzma.dll because it's not in the working directory from
       which the tests are run.

     - With mingw-w64, liblzma.dll was in the working directory so the test
       executables worked. However, the if the system happened to have
       liblzma.dll in, for example, the Windows directory, then the DLL
       search order might pick that instead.

    Putting the shared library and test executables in the same directory
    avoids these problems.

    Reported-by: Frank <mail@franku.nl>
    Fixes: https://github.com/tukaani-project/xz/pull/239

diff --git a/tests/tests.cmake b/tests/tests.cmake
index eff63d86..e60d1a2d 100644
--- a/tests/tests.cmake
+++ b/tests/tests.cmake
@@ -87,14 +87,12 @@ if(BUILD_TESTING)

         target_link_libraries("${TEST}" PRIVATE liblzma tests_w32res)

-        # Put the test programs into their own subdirectory so they don't
-        # pollute the top-level dir which might contain xz and xzdec.
-        set_target_properties("${TEST}" PROPERTIES
-            RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/tests_bin"
-        )
-
+        # We used to put the test executables into their own subdirectory,
+        # but it can create problems on Windows when BUILD_SHARED_LIBS=ON.
+        # The executables and liblzma.dll should be in the same directory to
+        # ensure that the correct liblzma.dll file is always found and used.
         add_test(NAME "${TEST}"
-                 COMMAND "${CMAKE_CURRENT_BINARY_DIR}/tests_bin/${TEST}"
+                 COMMAND "${CMAKE_CURRENT_BINARY_DIR}/${TEST}"
         )

         # Set srcdir environment variable so that the tests find their