Commit 35e06c4c for xz

commit 35e06c4c426c6cc3866a9003e87a122eb78bccf2
Author: Lasse Collin <lasse.collin@tukaani.org>
Date:   Sat Apr 12 15:31:01 2025 +0300

    CMake: Don't check for optreset if using replacement getopt_long

    If <getopt.h> had optreset but not getopt_long, xz used optreset while
    the replacement getopt_long doesn't support optreset. I'm not aware of
    any relevant system where bug is possible. Autotools build didn't have
    this bug.

    Fixes: af66cd585902 ("CMake: Add support for replacement getopt_long (lib/getopt*).")

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32506cdd..a4a37956 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2171,8 +2171,10 @@ this many MiB of RAM if xz cannot determine the amount at runtime")
     tuklib_progname(xz)
     tuklib_mbstr(xz)

-    check_symbol_exists(optreset getopt.h HAVE_OPTRESET)
-    tuklib_add_definition_if(xz HAVE_OPTRESET)
+    if(HAVE_GETOPT_LONG)
+        check_symbol_exists(optreset getopt.h HAVE_OPTRESET)
+        tuklib_add_definition_if(xz HAVE_OPTRESET)
+    endif()

     check_symbol_exists(posix_fadvise fcntl.h HAVE_POSIX_FADVISE)
     tuklib_add_definition_if(xz HAVE_POSIX_FADVISE)