Partially revert rC365414; `ln -n` is not portable

This restores the use of `rm` instead of the non-portable `ln -n`. Such
use being the status quo for the 12-month period between rC334972 and
rC365414.

llvm-svn: 367147

diff --git a/clang/test/Driver/no-canonical-prefixes.c b/clang/test/Driver/no-canonical-prefixes.c
index 85de9f1..c222dd4 100644 (file)
--- a/clang/test/Driver/no-canonical-prefixes.c
+++ b/clang/test/Driver/no-canonical-prefixes.c
@@ -4,10 +4,11 @@
 // RUN: cd %t.real
 // RUN: ln -sf %clang test-clang
 // RUN: cd ..
-// If %.fake already is a symlink to %t.real when `ln -sf %t.real %t.fake`
-// runs, then that would symlink %t.real to itself, forming a cycle.
-// The `-n` flag prevents this.
-// RUN: ln -sfn %t.real %t.fake
+// Important to remove %t.fake: If it already is a symlink to %t.real when
+// `ln -sf %t.real %t.fake` runs, then that would symlink %t.real to itself,
+// forming a cycle.
+// RUN: rm -f %t.fake
+// RUN: ln -sf %t.real %t.fake
 // RUN: cd %t.fake
 // RUN: ./test-clang -v -S %s 2>&1 | FileCheck --check-prefix=CANONICAL %s
 // RUN: ./test-clang -v -S %s -no-canonical-prefixes 2>&1 | FileCheck --check-prefix=NON-CANONICAL %s