GCC/Linux version of NLMISC_BREAKPOINT

--HG--
branch : feature-crashreport

code/nel/include/nel/misc/debug.h

@@ -351,7 +351,9 @@ void	setCrashAlreadyReported(bool state);
 
 // removed because we always check assert (even in release mode) #if defined (NL_OS_WINDOWS) && defined (NL_DEBUG)
 #if defined(NL_OS_WINDOWS)
-#define NLMISC_BREAKPOINT __debugbreak();
+#define NLMISC_BREAKPOINT __debugbreak()
+#elif defined(NL_OS_UNIX) && defined(NL_COMP_GCC)
+#define NLMISC_BREAKPOINT __builtin_trap()
 #else
 #define NLMISC_BREAKPOINT abort()
 #endif