Fix authgen.sh to not clobber autogen.lastrun when using --help

Fix also works for -h and -?

1 files changed, 8 insertions, 0 deletions

diff --git a/autogen.sh b/autogen.sh
index 2935619b3f80..78a6f6734bc5 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -86,6 +86,14 @@ sub invalid_distro($$)
     closedir ($dirh);
 }
 
+# Handle help arguments first, so we don't clobber autogen.lastrun
+for my $arg (@ARGV) {
+    if ($arg =~ /^(--help|-h|-\?)$/) {
+        system ("./configure --help");
+        exit;
+    }
+}
+
 my @cmdline_args = ();
 if (!@ARGV) {
     my $lastrun = "autogen.lastrun";