From 3708502761771e1af941dfb7f6dd44d97274accf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Sun, 5 Jul 2015 02:27:26 +0200
Subject: text: overhaul save implemenation

Try to do an atomic save using rename(2) unless

 * the file is a symbolic link
 * the file is a hard link
 * file ownership can not be preserved
 * file group can not be preserved
 * POSXI ACL can not be preserved (if enabled)
 * SELinux security context can not be preserved (if enabled)

in which case the file is overwritten in place. However a failure
to do so results in data loss.

Closes #47.
---
 config.mk | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'config.mk')

diff --git a/config.mk b/config.mk
index 9d37cc3..85ddc17 100644
--- a/config.mk
+++ b/config.mk
@@ -1,3 +1,7 @@
+# optional features
+HAVE_ACL=0
+HAVE_SELINUX=0
+
 # vis version
 # we have no tags in git, so just use revision count an hash for now
 GITREVCOUNT = "$(shell git rev-list --count master 2>/dev/null)"
@@ -18,7 +22,16 @@ LIBS = -lc -lncursesw
 
 OS = $(shell uname)
 
-ifeq (${OS},Darwin)
+ifeq (${OS},Linux)
+	ifeq (${HAVE_SELINUX},1)
+		CFLAGS += -DHAVE_SELINUX
+		LIBS += -lselinux
+	endif
+	ifeq (${HAVE_ACL},1)
+		CFLAGS += -DHAVE_ACL
+		LIBS += -lacl
+	endif
+else ifeq (${OS},Darwin)
 	LIBS = -lc -lncurses
 	CFLAGS += -D_DARWIN_C_SOURCE
 else ifeq (${OS},OpenBSD)
-- 
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