__cpp_lib_syncbuf (and the corresponding feature) is only available for
CXX11 string API.
libstdc++-v3/ChangeLog:
* testsuite/27_io/headers/iosfwd/synopsis.cc: Test __cpp_lib_syncbuf
value only if _GLIBCXX_USE_CXX11_ABI.
---
Pushed to trunk. Tested on x86_64-linux.
libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
b/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
index 81b158b8128..ddbb6411619 100644
--- a/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
+++ b/libstdc++-v3/testsuite/27_io/headers/iosfwd/synopsis.cc
@@ -11,7 +11,7 @@
# error "Feature-test macro __cpp_lib_spanstrean has wrong value in <iosfwd>"
#endif
-#if __cplusplus >= 202002L && __cpp_lib_syncbuf != 201803L
+#if __cplusplus >= 202002L && _GLIBCXX_USE_CXX11_ABI && __cpp_lib_syncbuf !=
201803L
# error "Feature-test macro __cpp_lib_syncbuf has wrong value in <iosfwd>"
#endif
--
2.55.0
