Index: CMakeLists.txt
--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -61,7 +61,8 @@ if (WITH_THREADS)
 endif (WITH_THREADS)
 
 check_include_file (dlfcn.h HAVE_DLFCN_H)
-check_include_file (execinfo.h HAVE_EXECINFO_H)
+# needs library; could be changed to use FindBacktrace
+# check_include_file (execinfo.h HAVE_EXECINFO_H)
 check_include_file (glob.h HAVE_GLOB_H)
 check_include_file (inttypes.h HAVE_INTTYPES_H)
 check_include_file (libunwind.h HAVE_LIBUNWIND_H)
