Index: lib/sanitizer_common/tests/CMakeLists.txt
===================================================================
--- lib/sanitizer_common/tests/CMakeLists.txt
+++ lib/sanitizer_common/tests/CMakeLists.txt
@@ -68,9 +68,10 @@
 append_if(COMPILER_RT_HAS_LIBSTDCXX -lstdc++ SANITIZER_TEST_LINK_FLAGS_COMMON)
 append_if(COMPILER_RT_HAS_LIBDL -ldl SANITIZER_TEST_LINK_FLAGS_COMMON)
 append_if(COMPILER_RT_HAS_LIBPTHREAD -lpthread SANITIZER_TEST_LINK_FLAGS_COMMON)
-# x86_64 FreeBSD 9.2 additionally requires libc++ to build the tests.
+# x86_64 FreeBSD 9.2 additionally requires libc++ to build the tests. Also,
+# 'libm' shall be specified explicitly to build i386 tests.
 if(CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE")
-  list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON "-lc++")
+  list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON "-lc++ -lm")
 endif()
 
 include_directories(..)