There is too much boost include to protect, disable -Wundef on FreeBSD alltogether

[simgrid.git] / tools / cmake / Flags.cmake

diff --git a/tools/cmake/Flags.cmake b/tools/cmake/Flags.cmake
index b058f8e..e7ba000 100644 (file)
--- a/tools/cmake/Flags.cmake
+++ b/tools/cmake/Flags.cmake
@@ -77,8 +77,7 @@ if(enable_compile_warnings AND enable_debug)
 endif()
 
 # Activate the warnings on #if FOOBAR when FOOBAR has no value
-# It breaks on FreeBSD within Boost headers, so activate this only in Pure Hardcore debug mode.
- if(enable_maintainer_mode)
+if("${CMAKE_SYSTEM}" MATCHES "Linux") # Breaks on FreeBSD within Boost headers :(
   set(warnCFLAGS "${warnCFLAGS} -Wundef")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wundef")
 endif()