DEFEATURE: remove old IRIX code for floating-point-exceptions

src/OSspecific/POSIX/signals/sigFpe.C

@@ -41,8 +41,6 @@ License
     #endif
     #include <fenv.h>
     #include <malloc.h>
-#elif defined(sgiN32) || defined(sgiN32Gcc)
-    #include <sigfpe.h>
 #endif
 
 #ifdef darwin
@@ -201,33 +199,9 @@ void Foam::sigFpe::set(bool verbose)
 
         setHandler("SIGFPE", SIGFPE, sigHandler);
 
-        sigActive_ = true;
-
-        #elif defined(sgiN32) || defined(sgiN32Gcc)
-
-        sigfpe_[_DIVZERO].abort=1;
-        sigfpe_[_OVERFL].abort=1;
-        sigfpe_[_INVALID].abort=1;
-
-        sigfpe_[_DIVZERO].trace=1;
-        sigfpe_[_OVERFL].trace=1;
-        sigfpe_[_INVALID].trace=1;
-
-        handle_sigfpes
-        (
-            _ON,
-            _EN_DIVZERO
-          | _EN_INVALID
-          | _EN_OVERFL,
-            0,
-            _ABORT_ON_ERROR,
-            nullptr
-        );
-
         sigActive_ = true;
         #endif
 
-
         if (verbose)
         {
             Info<< "trapFpe: Floating point exception trapping ";