From 93071b00b5b1a4190ee590e9ed65a5072b3b7f58 Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <Todd.Miller@courtesan.com>
Date: Tue, 29 Mar 2011 15:26:25 -0400
Subject: [PATCH] If there is an existing sudoers file, only install if it
 passes a syntax check.

--HG--
branch : 1.7
---
 Makefile.in | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 450683bf0..b16338b12 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -535,7 +535,13 @@ ChangeLog:
 	    fi; \
 	fi
 
-install: install-dirs install-binaries @INSTALL_NOEXEC@ install-sudoers install-doc
+pre-install:
+	@if test -r $(DESTDIR)$(sudoersdir)/sudoers; then \
+	    echo "Checking existing sudoers file for syntax errors."; \
+	    ./visudo -c -f $(DESTDIR)$(sudoersdir)/sudoers; \
+	fi
+
+install: pre-install install-dirs install-binaries @INSTALL_NOEXEC@ install-sudoers install-doc
 
 install-dirs:
 	$(SHELL) $(srcdir)/mkinstalldirs $(DESTDIR)$(sudodir) \
-- 
2.40.0