THRIFT-3099 cmake build is broken on FreeBSD
diff --git a/build/cmake/DefineOptions.cmake b/build/cmake/DefineOptions.cmake
index 7d8b032..a8b40c2 100644
--- a/build/cmake/DefineOptions.cmake
+++ b/build/cmake/DefineOptions.cmake
@@ -39,7 +39,7 @@
                        "BUILD_LIBRARIES;Boost_FOUND" OFF)
 # NOTE: Currently the following options are C++ specific,
 # but in future other libraries might reuse them.
-# So they are not dependent on WIHT_CPP but setting them without WITH_CPP currently
+# So they are not dependent on WITH_CPP but setting them without WITH_CPP currently
 # has no effect.
 find_package(ZLIB QUIET)
 CMAKE_DEPENDENT_OPTION(WITH_ZLIB "Build with ZLIB support" ON
diff --git a/build/cmake/DefinePlatformSpecifc.cmake b/build/cmake/DefinePlatformSpecifc.cmake
index bafbf49..63e78f4 100644
--- a/build/cmake/DefinePlatformSpecifc.cmake
+++ b/build/cmake/DefinePlatformSpecifc.cmake
@@ -68,8 +68,14 @@
 
 endif()
 
-# GCC Specific
-if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
-  # TODO: -pedantic can not be used at the moment because of: https://issues.apache.org/jira/browse/THRIFT-2784
+# GCC and Clang.
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+  # FIXME -pedantic can not be used at the moment because of: https://issues.apache.org/jira/browse/THRIFT-2784
   #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O2 -Wall -Wextra -pedantic")
+  # FIXME enabling c++11 breaks some Linux builds on Travis by triggering a g++ bug, see
+  # https://travis-ci.org/apache/thrift/jobs/58017022
+  # on the other hand, both MacOSX and FreeBSD need c++11
+  if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin" OR ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -O2 -Wall -Wextra")
+  endif()
 endif()