closes bpo-34652: Always disable lchmod on Linux. (GH-9234)

(cherry picked from commit 40caa05fa4d1810a1a6bfc34e0ec930c351089b7)

Co-authored-by: Benjamin Peterson <benjamin@python.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/configure b/configure
index 7e39458727..1219cb9ffa 100755
--- a/configure
+++ b/configure
@@ -11354,6 +11354,17 @@ fi
 done
 
 
+# Force lchmod off for Linux. Linux disallows changing the mode of symbolic
+# links. Some libc implementations have a stub lchmod implementation that always
+# returns an error.
+if test "$MACHDEP" != linux; then
+  ac_fn_c_check_func "$LINENO" "lchmod" "ac_cv_func_lchmod"
+if test "x$ac_cv_func_lchmod" = xyes; then :
+
+fi
+
+fi
+
 ac_fn_c_check_decl "$LINENO" "dirfd" "ac_cv_have_decl_dirfd" "#include <sys/types.h>
        #include <dirent.h>
 "