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-rw-r--r--gcc/ada/libgnarl/s-inmaop__posix.adb1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/ada/libgnarl/s-inmaop__posix.adb b/gcc/ada/libgnarl/s-inmaop__posix.adb
index 3171399..e4d07ee 100644
--- a/gcc/ada/libgnarl/s-inmaop__posix.adb
+++ b/gcc/ada/libgnarl/s-inmaop__posix.adb
@@ -135,6 +135,7 @@ package body System.Interrupt_Management.Operations is
begin
Result := sigwait (Mask, Sig'Access);
+ pragma Assert (Result = 0);
if Result /= 0 then
return 0;