also die on warning in C++

[simgrid.git] / buildtools / Cmake / Flags.cmake

diff --git a/buildtools/Cmake/Flags.cmake b/buildtools/Cmake/Flags.cmake
index 9c37da3..4ecae06 100644 (file)
--- a/buildtools/Cmake/Flags.cmake
+++ b/buildtools/Cmake/Flags.cmake
@@ -2,7 +2,7 @@ set(warnCFLAGS "")
 set(optCFLAGS "")
 
 if(NOT __VISUALC__ AND NOT __BORLANDC__)
-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}-g3")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}-std=gnu99 -g3")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}-g3")
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
 else()
@@ -19,6 +19,8 @@ if(enable_compile_warnings)
     endif()
   endif()
 
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Werror")
+
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -Wall") # FIXME: Q&D hack
 
   set(CMAKE_JAVA_COMPILE_FLAGS "-Xlint")
@@ -85,6 +87,11 @@ if(NOT $ENV{CFLAGS} STREQUAL "")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} $ENV{CFLAGS}")
 endif()
 
+if(NOT $ENV{CXXFLAGS} STREQUAL "")
+  message(STATUS "Add CXXFLAGS: \"$ENV{CXXFLAGS}\" to CMAKE_CXX_FLAGS")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{CXXFLAGS}")
+endif()
+
 if(NOT $ENV{LDFLAGS} STREQUAL "")
   message(STATUS "Add LDFLAGS: \"$ENV{LDFLAGS}\" to CMAKE_C_LINK_FLAGS")
   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} $ENV{LDFLAGS}")