Check for sigaction.

From-SVN: r42790

libjava/configure.in

@@ -409,7 +409,7 @@ else
    AC_CHECK_FUNCS(iconv nl_langinfo setlocale)
    AC_CHECK_FUNCS(inet_aton inet_addr, break)
    AC_CHECK_FUNCS(inet_pton uname inet_ntoa)
-   AC_CHECK_FUNCS(backtrace fork execvp pipe)
+   AC_CHECK_FUNCS(backtrace fork execvp pipe sigaction)
    AC_CHECK_HEADERS(execinfo.h unistd.h dlfcn.h) 
    AC_CHECK_LIB(dl, dladdr, [
      AC_DEFINE(HAVE_DLADDR)])

libjava/include/config.h.in

@@ -269,6 +269,9 @@
 /* Define if you have the setlocale function.  */
 #undef HAVE_SETLOCALE
 
+/* Define if you have the sigaction function.  */
+#undef HAVE_SIGACTION
+
 /* Define if you have the sleep function.  */
 #undef HAVE_SLEEP
 

libjava/prims.cc

@@ -877,14 +877,16 @@ _Jv_CreateJavaVM (void* /*vm_args*/)
 #ifdef USE_WIN32_SIGNALLING
   // Install exception handler
   SetUnhandledExceptionFilter (win32_exception_handler);
-#else
+#elif defined(HAVE_SIGACTION)
   // We only want this on POSIX systems.
   struct sigaction act;
   act.sa_handler = SIG_IGN;
   sigemptyset (&act.sa_mask);
   act.sa_flags = 0;
   sigaction (SIGPIPE, &act, NULL);
-#endif /* USE_WIN32_SIGNALLING */
+#else
+  signal (SIGPIPE, SIG_IGN);
+#endif
 
   _Jv_JNI_Init ();