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-rw-r--r--lib/Support/CommandLine.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp
index 15fd19591a..df321653e6 100644
--- a/lib/Support/CommandLine.cpp
+++ b/lib/Support/CommandLine.cpp
@@ -972,5 +972,11 @@ VersOp("version", cl::desc("display the version"),
// Utility function for printing the help message.
void cl::PrintHelpMessage() {
+ // This looks weird, but it actually prints the help message. The
+ // NormalPrinter variable is a HelpPrinter and the help gets printed when
+ // its operator= is invoked. That's because the "normal" usages of the
+ // help printer is to be assigned true/false depending on whether the
+ // --help option was given or not. Since we're circumventing that we have
+ // to make it look like --help was given, so we assign true.
NormalPrinter = true;
}