From ad1f4567523c986a9a49dc104aac730b06cbdfa2 Mon Sep 17 00:00:00 2001
From: Emmanuel Benoît <tseeker@nocternity.net>
Date: Wed, 21 Jan 2015 16:18:17 +0100
Subject: Build files: remove extraneous dependency

* configure.ac: use LT_LIBM to check for the maths library
* src/accelerometer/Makefile.am: use $(LIBM) instead of -lm in the link
flags

This causes all executables (except accelerometer) and libraries to be
linked without libm, which they do not need.
---
 configure.ac                  | 2 +-
 src/accelerometer/Makefile.am | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index dbca833f6..4f0e54979 100644
--- a/configure.ac
+++ b/configure.ac
@@ -99,7 +99,7 @@ AC_CHECK_FUNCS(
         [AC_MSG_ERROR([*** POSIX function not found])]
 )
 AC_SEARCH_LIBS([clock_gettime], [rt], [], [AC_MSG_ERROR([*** POSIX librt not found])])
-AC_SEARCH_LIBS([sqrt], [m], [], [AC_MSG_ERROR([*** POSIX libm not found])])
+LT_LIB_M
 
 # ------------------------------------------------------------------------------
 
diff --git a/src/accelerometer/Makefile.am b/src/accelerometer/Makefile.am
index 983cf003d..3d6484263 100644
--- a/src/accelerometer/Makefile.am
+++ b/src/accelerometer/Makefile.am
@@ -13,4 +13,4 @@ accelerometer_SOURCES = \
 accelerometer_LDADD = \
 	$(top_builddir)/src/libudev/libudev-private.la \
 	$(top_builddir)/src/udev/libudev-core.la \
-	-lm
+	$(LIBM)
-- 
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