testheaders.sh: force-remove temporary files (#1487)

At high levels of build parallelism on systems using GNU coreutils,
sometimes "make check" hangs on a request to confirm
removal of a read-only file temporary file.

Force-remove temporary test files to ensure removal is noniteractive.

diff --git a/test-suite/testheaders.sh b/test-suite/testheaders.sh
index 2bb55112d3e4efd7aac8473c428f5beb9d3502ba..86edf4ea9c1da44ebd2a59cf6d5a6935bbeee58a 100755 (executable)
--- a/test-suite/testheaders.sh
+++ b/test-suite/testheaders.sh
@@ -41,7 +41,7 @@ EOF
             echo "Fail."
             exitCode=1
         fi
-        rm $t.cc $t.o
+        rm -f $t.cc $t.o
     fi
     test $exitCode -eq 0 || break
 done