libstdc++: Avoid illegal argument to verbose in dg-test callback

If extra_tool_flags starts with a dash, an error like 'ERROR: verbose:
illegal argument: -march=native -O2 -std=c++17' is printed. This is
easily fixed by inserting a double dash before the variable.

2020-04-20  Matthias Kretz  <kretz@kde.org>

	* testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index fde5ac1bf376e5515914b5c5bed4b69db17c01ed..b30b1d096e8b673a3b751d5ca65c94049d1eed88 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,7 @@
+2020-04-20  Matthias Kretz  <kretz@kde.org>
+
+       * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
+
 2020-04-19  Jonathan Wakely  <jwakely@redhat.com>
 
        * include/bits/stl_queue.h (queue): Define operator<=> for C++20.

diff --git a/libstdc++-v3/testsuite/lib/libstdc++.exp b/libstdc++-v3/testsuite/lib/libstdc++.exp
index 10a7e74846456c4614b72514af7ae2f538d8cc5f..7f4532c55b22fa33bb16facaefc23b86b00af561 100644 (file)
--- a/libstdc++-v3/testsuite/lib/libstdc++.exp
+++ b/libstdc++-v3/testsuite/lib/libstdc++.exp
@@ -408,7 +408,7 @@ proc libstdc++-dg-test { prog do_what extra_tool_flags } {
     set options ""
     if { $extra_tool_flags != "" } {
        verbose -log "extra_tool_flags are:"
-       verbose -log $extra_tool_flags
+       verbose -log -- $extra_tool_flags
        if { [string first "-x c" $extra_tool_flags ] != -1 } {
            verbose -log "compiling and executing as C, not C++"
            set edit_tool_flags $extra_tool_flags