From 11b68518a99374503d7e20c40ee1550fbf592a01 Mon Sep 17 00:00:00 2001
From: Akinori MUSHA <knu@FreeBSD.org>
Date: Sun, 11 Mar 2001 17:39:28 +0000
Subject: Improve ruby-shebang-patch routine.  Add a #! line when the script
 doesn't have one.

---
 Mk/bsd.ruby.mk | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Mk/bsd.ruby.mk b/Mk/bsd.ruby.mk
index 32dbf2a9d4eb..5526f074a26a 100644
--- a/Mk/bsd.ruby.mk
+++ b/Mk/bsd.ruby.mk
@@ -182,7 +182,14 @@ post-patch:	ruby-shebang-patch
 ruby-shebang-patch:
 	@for f in ${RUBY_SHEBANG_FILES}; do \
 	${ECHO_MSG} "===>  Fixing the #! line of $$f"; \
-	${RUBY} -i -pe '$$. == 1 and sub /^#!\s*\S*(\benv\s+)?\bruby/, "#!${RUBY}"' $$f; \
+	${RUBY} -i -p	-e 'if $$. == 1; ' \
+			-e ' if /^#!/; ' \
+			-e '  sub /^#!\s*\S*(\benv\s+)?\bruby/, "#!${RUBY}";' \
+			-e ' else;' \
+			-e '  $$_ = "#!${RUBY}\n" + $$_;' \
+			-e ' end;' \
+			-e 'end' \
+			$$f; \
 	done
 .endif
 
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