From 96e4aabe0b9a46ea9da4955a10c774a8e58fe677 Mon Sep 17 00:00:00 2001
From: Mikkel Kamstrup Erlandsen
Date: Wed, 10 Oct 2018 12:43:06 +0200
Subject: build: check if clock_gettime() requires -lrt on old GNU systems

---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 46a725e..d0c8201 100644
--- a/configure.ac
+++ b/configure.ac
@@ -92,6 +92,9 @@ AC_TYPE_UINT16_T
 AC_TYPE_UINT32_T
 AC_TYPE_UINT8_T
 
+# Check if clock_gettime requires -lrt (old GNU systems)
+AC_SEARCH_LIBS([clock_gettime],[rt posix4])
+
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_FUNC_REALLOC
-- 
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