From 98f91566cc7d43c6b86a711fa1d196ed5876b2f3 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 11 Nov 2013 23:40:00 +0100
Subject: [PATCH] bus: export utf8 validator calls as pure functions

---
 src/systemd/_sd-common.h | 4 ++++
 src/systemd/sd-utf8.h    | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/systemd/_sd-common.h b/src/systemd/_sd-common.h
index b0c48aab9..594ff3db2 100644
--- a/src/systemd/_sd-common.h
+++ b/src/systemd/_sd-common.h
@@ -40,6 +40,10 @@
 #  define _sd_packed_ __attribute__((packed))
 #endif
 
+#ifndef _sd_pure_
+#  define _sd_pure_ __attribute__((pure))
+#endif
+
 #ifndef _SD_STRINGIFY
 #  define _SD_XSTRINGIFY(x) #x
 #  define _SD_STRINGIFY(x) _SD_XSTRINGIFY(x)
diff --git a/src/systemd/sd-utf8.h b/src/systemd/sd-utf8.h
index 4a43eb7c2..205ee4221 100644
--- a/src/systemd/sd-utf8.h
+++ b/src/systemd/sd-utf8.h
@@ -26,8 +26,8 @@
 
 _SD_BEGIN_DECLARATIONS;
 
-const char *sd_utf8_is_valid(const char *s);
-const char *sd_ascii_is_valid(const char *s);
+_sd_pure_ const char *sd_utf8_is_valid(const char *s);
+_sd_pure_ const char *sd_ascii_is_valid(const char *s);
 
 _SD_END_DECLARATIONS;
 
-- 
2.30.2