From 2ee389044bc6ff1a8b066eb70f41cc8ec883f5fa Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Sun, 23 Dec 2007 16:28:09 -0800
Subject: [PATCH] Check for libm before including it

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5f107e5d..d7093fa5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,7 +41,6 @@ CHECK_TYPE_SIZE("void*" SIZEOF_VOIDP)
 
 # Add definitions, compiler switches, etc.
 INCLUDE_DIRECTORIES(OpenAL32/Include include "${OpenAL_BINARY_DIR}")
-SET(EXTRA_LIBS m ${EXTRA_LIBS})
 
 IF("${MSVC}")
     # ???
@@ -94,6 +93,9 @@ ELSEIF(NODEBUG)
 ENDIF()
 
 CHECK_LIBRARY_EXISTS(m  sqrtf  "" HAVE_SQRTF)
+IF("${HAVE_SQRTF}")
+    SET(EXTRA_LIBS m ${EXTRA_LIBS})
+ENDIF()
 CHECK_FUNCTION_EXISTS(strtof HAVE_STRTOF)
 
 CHECK_FUNCTION_EXISTS(strcasecmp HAVE_STRCASECMP)