Fix building Asan and common sanitizers tests on FreeBSD 9.2

[kutuzov.viktor.84]

Summary

We need to add the "-lc++" option explicitly to the LINKFLAGS for some of the Asan and common sanitizers tests (e.g., the -with-calls ones) on FreeBSD 9.2. It looks like it's fixed for upcoming versions of FreeBSD: http://lists.freebsd.org/pipermail/svn-src-stable-9/2012-May/001855.html .

[samsonov]

LGTM

[kutuzov.viktor.84]

Committed as rL207408.

lib/asan/tests/CMakeLists.txt

set(ASAN_UNITTEST_INSTRUMENTED_CFLAGS
   -fsanitize=address
   "-fsanitize-blacklist=${ASAN_BLACKLIST_FILE}"
   -mllvm -asan-stack=1
   -mllvm -asan-globals=1
 )
 
 # Unit tests require libstdc++.
 set(ASAN_UNITTEST_COMMON_LINKFLAGS -lstdc++)
+# x86_64 FreeBSD 9.2 additionally requires libc++ to build the tests.
+if(CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE")
+  list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS "-lc++")
+endif()
+
 # Unit tests on Mac depend on Foundation.
 if(APPLE)
   list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS -framework Foundation)
 endif()
 if(ANDROID)
   list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS -pie)
 endif()
 

lib/sanitizer_common/tests/CMakeLists.txt

set(SANITIZER_TEST_CFLAGS_COMMON
   -O2 -g -fno-rtti
   -Werror=sign-compare
   -Wno-non-virtual-dtor)
 
 set(SANITIZER_TEST_LINK_FLAGS_COMMON
   -lstdc++)
 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.
+if(CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE")
+  list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON "-lc++")
+endif()
 
 include_directories(..)
 include_directories(../..)
 
 # Adds static library which contains sanitizer_common object file
 # (universal binary on Mac and arch-specific object files on Linux).
 macro(add_sanitizer_common_lib library)
   add_library(${library} STATIC ${ARGN})