2011-07-09  Tobias Burnus  <burnus@net-b.de>

	PR fortran/49690
	* intrinsic.c (add_functions): Use BT_VOID for 2nd argument of SIGNAL.

2011-07-09  Tobias Burnus  <burnus@net-b.de>

	PR fortran/49690
	* gfortran.dg/intrinsic_signal.f90: New.

diff --git a/gcc/fortran/intrinsic.c b/gcc/fortran/intrinsic.c
index a72da91..5946ddd 100644
--- a/gcc/fortran/intrinsic.c
+++ b/gcc/fortran/intrinsic.c
@@ -2594,7 +2594,7 @@ add_functions (void)
 
   add_sym_2 ("signal", GFC_ISYM_SIGNAL, CLASS_IMPURE, ACTUAL_NO, BT_INTEGER,
 	     di, GFC_STD_GNU, gfc_check_signal, NULL, gfc_resolve_signal,
-	     num, BT_INTEGER, di, REQUIRED, han, BT_UNKNOWN, 0, REQUIRED);
+	     num, BT_INTEGER, di, REQUIRED, han, BT_VOID, 0, REQUIRED);
 
   make_generic ("signal", GFC_ISYM_SIGNAL, GFC_STD_GNU);
 
--- /dev/null	2011-07-09 08:27:50.727884038 +0200
+++ gcc/gcc/testsuite/gfortran.dg/intrinsic_signal.f90	2011-07-09 20:19:35.000000000 +0200
@@ -0,0 +1,21 @@
+! { dg-do compile }
+!
+! PR fortran/49690
+!
+! Reduced test case, based on the one of Debian bug #631204
+!
+
+subroutine ctrlc_ast
+   common /xinterrupt/ interrupted
+   logical interrupted
+   interrupted = .true.
+end subroutine ctrlc_ast  
+
+subroutine set_ctrl_c(ctrlc_ast)
+   external ctrlc_ast
+   intrinsic signal
+   integer old_handle
+   common /xinterrupt/ interrupted
+   logical interrupted
+   old_handler = signal(2, ctrlc_ast)    
+end subroutine set_ctrl_c