From ac2f2f092dfbe2599baba119daf8cd036a2ec043 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Sun, 3 May 2015 19:34:18 +0200
Subject: Add libfec check to configure.ac

---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/configure.ac b/configure.ac
index c7d2380..2e420cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,6 +56,12 @@ AC_PROG_INSTALL
 AC_CHECK_LIB([pthread], [pthread_create], [], AC_MSG_ERROR([libpthread is required]))
 AX_BOOST_BASE([1.41.0], [], AC_MSG_ERROR([BOOST 1.41 or later is required]))
 
+# we need to check for libm before checking for fec
+AC_CHECK_LIB([m], [sin])
+AC_SEARCH_LIBS([init_rs_char], [fec], [], [
+  AC_MSG_ERROR([unable to find libfec])
+])
+
 # Checks for header files.
 AC_MSG_CHECKING([for OS type])
 AC_PREPROC_IFELSE(
-- 
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