From 29457fac9f624e4066704cec520f55675633259a Mon Sep 17 00:00:00 2001
From: "Christopher J. Morrone" <morrone2@llnl.gov>
Date: Wed, 2 Nov 2011 17:49:43 -0700
Subject: [PATCH] Use autoconf to link against the math library.

---
 configure.ac    | 2 ++
 src/Makefile.am | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index ac8665f..18dc892 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,8 @@ AC_TYPE_SIZE_T
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([getpagesize gettimeofday memset mkdir pow putenv realpath regcomp sqrt strcasecmp strchr strerror strncasecmp strstr uname])
+AC_SEARCH_LIBS([sqrt], [m], [],
+        [AC_MSG_ERROR([Math library not found])])
 
 # Check for system capabilities
 AC_SYS_LARGEFILE
diff --git a/src/Makefile.am b/src/Makefile.am
index 6a2e70e..cbad09a 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -2,7 +2,7 @@ bin_PROGRAMS = ior
 
 ior_SOURCES = ior.c utilities.c parse_options.c
 ior_SOURCES += ior.h aiori.h iordef.h defaults.h
-ior_LDADD = -lm
+ior_LDADD =
 
 if USE_POSIX_AIORI
 ior_SOURCES += aiori-POSIX.c