X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3ef6ce6e499e5400eea06facd1896d1b5e94fde9..31f8d2188a6cfd24c58c7503728bc1317be2f073:/tools/cmake/GCCFlags.cmake

diff --git a/tools/cmake/GCCFlags.cmake b/tools/cmake/GCCFlags.cmake
index 31c50d7cf4..1b29b677bc 100644
--- a/tools/cmake/GCCFlags.cmake
+++ b/tools/cmake/GCCFlags.cmake
@@ -13,7 +13,6 @@ set(warnCFLAGS "")
 set(optCFLAGS "")
 
 
-
 if(enable_compile_warnings)
   set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror ")
   if(CMAKE_COMPILER_IS_GNUCC)
@@ -32,6 +31,13 @@ if(enable_compile_warnings)
   set(CMAKE_JAVA_COMPILE_FLAGS "-Xlint")
 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)
+  set(warnCFLAGS "${warnCFLAGS} -Wundef")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wundef")
+endif()
+
 # Se the optimisation flags
 # NOTE, we should CMAKE_BUILD_TYPE for this
 if(enable_compile_optimizations)