Darwin regtest: turn off ada mangling test

On Darwin clang adds an underscore to mangle C functions
which interferes with this testcase which tries to fake ada
mangling in C.

diff --git a/memcheck/tests/bug445235_ada_demangle.vgtest b/memcheck/tests/bug445235_ada_demangle.vgtest
index d8d263351c44f994e3fed9922216d9c186c1c372..09f77b78ba65610fae3fc88160039b0f629d81a8 100644 (file)
--- a/memcheck/tests/bug445235_ada_demangle.vgtest
+++ b/memcheck/tests/bug445235_ada_demangle.vgtest
@@ -1,2 +1,5 @@
+# on macOS the C compiler adds more manging which fouls up
+# this test which relies on faking ada mangling in a C binary
+prereq: ! ../../tests/os_test darwin
 prog: bug445235_ada_demangle
 vgopts: -q