From c3616f28d33019047e8e71df8abeb0493159539e Mon Sep 17 00:00:00 2001
From: Silvio Traversaro <silvio@traversaro.it>
Date: Sun, 17 May 2020 11:42:24 +0200
Subject: [PATCH] Fix configuration with  Emscripten

In Emscripten there is no separate libm library, so there is no need to explicitly link it,
and in particular the find_library call would fail as there is not libm to find.
See https://stackoverflow.com/questions/24663915/how-can-i-link-libm-to-my-emscripten-port
---
 src/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1407080..357ed76 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -48,7 +48,7 @@ target_include_directories(ccd PUBLIC
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
   $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>)
 
-if(NOT WIN32)
+if(NOT WIN32 AND NOT (CMAKE_SYSTEM_NAME STREQUAL "Emscripten"))
   find_library(LIBM_LIBRARY NAMES m)
   if(NOT LIBM_LIBRARY)
     message(FATAL_ERROR "Could NOT find required library LibM")