Check if ErrMsg is null. This fixes the "not" command.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117666 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Unix/Program.inc b/lib/System/Unix/Program.inc
index b92d080..86d9b2a 100644
--- a/lib/System/Unix/Program.inc
+++ b/lib/System/Unix/Program.inc
@@ -359,24 +359,29 @@
result = 126;
#endif
if (result == 127) {
- *ErrMsg = llvm::sys::StrError(ENOENT);
+ if (ErrMsg)
+ *ErrMsg = llvm::sys::StrError(ENOENT);
return -1;
}
if (result == 126) {
- *ErrMsg = "Program could not be executed";
+ if (ErrMsg)
+ *ErrMsg = "Program could not be executed";
return -1;
}
} else if (WIFSIGNALED(status)) {
- *ErrMsg = strsignal(WTERMSIG(status));
+ if (ErrMsg) {
+ *ErrMsg = strsignal(WTERMSIG(status));
#ifdef WCOREDUMP
- if (WCOREDUMP(status))
- *ErrMsg += " (core dumped)";
+ if (WCOREDUMP(status))
+ *ErrMsg += " (core dumped)";
#endif
+ }
return -1;
}
return result;
#else
- *ErrMsg = "Program::Wait is not implemented on this platform yet!";
+ if (ErrMsg)
+ *ErrMsg = "Program::Wait is not implemented on this platform yet!";
return -1;
#endif
}