--- ./gcc/config/i386/i386.c.orig	2004-12-12 22:00:44.000000000 +0100
+++ ./gcc/config/i386/i386.c	2005-05-04 11:33:32.732252533 +0200
@@ -1879,6 +1879,33 @@
 		}
 	    }
 	}
+#ifdef GPC
+      else if (TREE_CODE (type) == SET_TYPE)
+        {
+          if (bytes <= 4)
+            {
+              classes[0] = X86_64_INTEGERSI_CLASS;
+              return 1;
+            }
+          else if (bytes <= 8)
+            {
+	      classes[0] = X86_64_INTEGER_CLASS;
+	      return 1;
+            }
+          else if (bytes <= 12)
+            {
+	      classes[0] = X86_64_INTEGER_CLASS;
+	      classes[1] = X86_64_INTEGERSI_CLASS;
+	      return 2;
+            }
+          else
+            {
+	      classes[0] = X86_64_INTEGER_CLASS;
+	      classes[1] = X86_64_INTEGER_CLASS;
+	      return 2;
+            }
+	}
+#endif
       else
 	abort ();
 
--- ./gcc/config/s390/s390.h.orig	2003-11-06 22:53:07.000000000 +0100
+++ ./gcc/config/s390/s390.h	2005-05-04 11:18:03.189337040 +0200
@@ -158,7 +158,7 @@
    NONLOCAL needs twice Pmode to maintain both backchain and SP.  */
 #define STACK_SAVEAREA_MODE(LEVEL)      \
   (LEVEL == SAVE_FUNCTION ? VOIDmode    \
-  : LEVEL == SAVE_NONLOCAL ? (TARGET_64BIT ? TImode : DImode) : Pmode)
+  : LEVEL == SAVE_NONLOCAL ? (TARGET_64BIT ? OImode : TImode) : Pmode)
 
 /* Define target floating point format.  */
 #define TARGET_FLOAT_FORMAT \
--- ./gcc/config/s390/s390.md.orig	2005-01-28 00:38:39.000000000 +0100
+++ ./gcc/config/s390/s390.md	2005-05-04 11:09:53.984421536 +0200
@@ -6770,21 +6770,9 @@
 
 
 ;
-; setjmp/longjmp instruction pattern(s).
+; setjmp instruction pattern.
 ;
 
-(define_expand "builtin_setjmp_setup"
-  [(unspec [(match_operand 0 "register_operand" "a")] 1)]
-  ""
-  "
-{
-  rtx base = gen_rtx_MEM (Pmode, plus_constant (operands[0], 4 * GET_MODE_SIZE (Pmode)));
-  rtx basereg = gen_rtx_REG (Pmode, BASE_REGISTER);
-
-  emit_move_insn (base, basereg);
-  DONE;
-}")
-
 (define_expand "builtin_setjmp_receiver"
   [(unspec_volatile [(label_ref (match_operand 0 "" ""))] 2)]
   "flag_pic"
@@ -6799,32 +6787,6 @@
   DONE;
 }")
 
-(define_expand "builtin_longjmp"
-  [(unspec_volatile [(match_operand 0 "register_operand" "r")] 3)]
-  ""
-  "
-{
-  /* The elements of the buffer are, in order:  */
-  rtx fp = gen_rtx_MEM (Pmode, operands[0]);
-  rtx lab = gen_rtx_MEM (Pmode, plus_constant (operands[0], GET_MODE_SIZE (Pmode)));
-  rtx stack = gen_rtx_MEM (Pmode, plus_constant (operands[0], 2 * GET_MODE_SIZE (Pmode)));
-  rtx base = gen_rtx_MEM (Pmode, plus_constant (operands[0], 4 * GET_MODE_SIZE (Pmode)));
-  rtx basereg = gen_rtx_REG (Pmode, BASE_REGISTER);
-  rtx jmp = gen_rtx_REG (Pmode, 14);
-
-  emit_move_insn (jmp, lab);
-  emit_move_insn (basereg, base);
-  emit_stack_restore (SAVE_NONLOCAL, stack, NULL_RTX);
-  emit_move_insn (hard_frame_pointer_rtx, fp);
-
-  emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx));
-  emit_insn (gen_rtx_USE (VOIDmode, stack_pointer_rtx));
-  emit_insn (gen_rtx_USE (VOIDmode, basereg));
-  emit_indirect_jump (jmp);
-  DONE;
-}")
-
-
 ;; These patterns say how to save and restore the stack pointer.  We need not
 ;; save the stack pointer at function level since we are careful to
 ;; preserve the backchain.  At block level, we have to restore the backchain
@@ -6866,13 +6828,17 @@
 {
   rtx temp = gen_reg_rtx (Pmode);
 
-  /* Copy the backchain to the first word, sp to the second.  */
+  /* Copy the backchain to the first word, sp to the second and the literal pool
+     base to the third. */
+  emit_move_insn (operand_subword (operands[0], 2, 0,
+                  TARGET_64BIT ? OImode : TImode),
+                  gen_rtx_REG (Pmode, BASE_REGISTER));
   emit_move_insn (temp, gen_rtx_MEM (Pmode, operands[1]));
   emit_move_insn (operand_subword (operands[0], 0, 0,
-                 TARGET_64BIT ? TImode : DImode),
+                 TARGET_64BIT ? OImode : TImode),
                  temp);
   emit_move_insn (operand_subword (operands[0], 1, 0,
-                 TARGET_64BIT ? TImode : DImode),
+                 TARGET_64BIT ? OImode : TImode),
                  operands[1]);
   DONE;
 }")
@@ -6884,15 +6850,22 @@
   "
 {
   rtx temp = gen_reg_rtx (Pmode);
+  rtx base = gen_rtx_REG (Pmode, BASE_REGISTER);
 
-  /* Restore the backchain from the first word, sp from the second.  */
+  /* Restore the backchain from the first word, sp from the second and the
+     literal pool base from the third. */
   emit_move_insn (temp,
                  operand_subword (operands[1], 0, 0,
-                 TARGET_64BIT ? TImode : DImode));
+                 TARGET_64BIT ? OImode : TImode));
   emit_move_insn (operands[0],
                  operand_subword (operands[1], 1, 0,
-                 TARGET_64BIT ? TImode : DImode));
+                 TARGET_64BIT ? OImode : TImode));
   emit_move_insn (gen_rtx_MEM (Pmode, operands[0]), temp);
+  emit_move_insn (base,
+                  operand_subword (operands[1], 2, 0,
+                  TARGET_64BIT ? OImode : TImode));
+  emit_insn (gen_rtx_USE (VOIDmode, base));
+
   DONE;
 }")
 
--- ./gcc/dbxout.c.orig	2004-03-23 06:24:49.000000000 +0100
+++ ./gcc/dbxout.c	2005-05-04 11:09:53.988420289 +0200
@@ -1380,7 +1380,7 @@
 	  fputs ("@s", asmfile);
 	  CHARS (2);
 	  print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type));
-	  fputs (";-20;", asmfile);
+	  fputs (";-20", asmfile);
 	  CHARS (4);
 	}
       else
@@ -1402,7 +1402,7 @@
 	  fputs ("@s", asmfile);
 	  CHARS (2);
 	  print_wide_int (BITS_PER_UNIT * int_size_in_bytes (type));
-	  fputs (";-16;", asmfile);
+	  fputs (";-16", asmfile);
 	  CHARS (4);
 	}
       else /* Define as enumeral type (False, True) */
--- ./gcc/dwarf2out.c.orig	2004-04-13 20:36:36.000000000 +0200
+++ ./gcc/dwarf2out.c	2005-05-04 11:09:53.993418731 +0200
@@ -8527,6 +8527,9 @@
     case NON_LVALUE_EXPR:
     case VIEW_CONVERT_EXPR:
     case SAVE_EXPR:
+#ifdef GPC
+    case UNSAVE_EXPR:
+#endif
       return loc_descriptor_from_tree (TREE_OPERAND (loc, 0), addressp);
 
     case COMPONENT_REF:
@@ -8705,6 +8708,15 @@
       add_loc_descr (&ret, new_loc_descr (op, 0, 0));
       break;
 
+#ifdef GPC
+    case MIN_EXPR:
+      loc = build (COND_EXPR, TREE_TYPE (loc),
+		   build (GT_EXPR, integer_type_node,
+			  TREE_OPERAND (loc, 0), TREE_OPERAND (loc, 1)),
+		   TREE_OPERAND (loc, 1), TREE_OPERAND (loc, 0));
+      goto cond_expr;
+#endif
+
     case MAX_EXPR:
       loc = build (COND_EXPR, TREE_TYPE (loc),
 		   build (LT_EXPR, integer_type_node,
@@ -8714,6 +8726,9 @@
       /* ... fall through ...  */
 
     case COND_EXPR:
+#ifdef GPC
+    cond_expr:
+#endif
       {
 	dw_loc_descr_ref lhs
 	  = loc_descriptor_from_tree (TREE_OPERAND (loc, 1), 0);
@@ -8744,7 +8759,29 @@
       }
       break;
 
+#ifdef GPC
+    case REAL_CST:
+    case FLOAT_EXPR:
+    case FIX_TRUNC_EXPR:
+    case FIX_CEIL_EXPR:
+    case FIX_FLOOR_EXPR:
+    case FIX_ROUND_EXPR:
+    case RDIV_EXPR:
+    case STRING_CST:
+    case CONSTRUCTOR:
+      /* In Pascal it's possible for array bounds to contain floating point
+         expressions (e.g., p/test/emil11c.pas). I don't know if it's
+         possible to represent them in dwarf2, but it doesn't seem terribly
+         important since this occurs quite rarely. -- Frank */
+      return 0;
+#endif
+
     default:
+#ifdef GPC
+      /* Just for debugging in case we encounter more expression types that
+         occur in Pascal. */
+      debug_tree (loc);
+#endif
       abort ();
     }
 
--- ./gcc/expr.c.orig	2004-12-20 03:43:00.000000000 +0100
+++ ./gcc/expr.c	2005-05-04 11:09:54.000416550 +0200
@@ -19,6 +19,9 @@
 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 02111-1307, USA.  */
 
+
+/* @@ PATCHED FOR GPC @@ */
+
 #include "config.h"
 #include "system.h"
 #include "machmode.h"
@@ -5324,13 +5327,36 @@
 	  return;
 	}
 
+#ifndef GPC
       domain_min = convert (sizetype, TYPE_MIN_VALUE (domain));
       domain_max = convert (sizetype, TYPE_MAX_VALUE (domain));
+#else /* GPC */
+      domain_min = convert (sbitsizetype, TYPE_MIN_VALUE (domain));
+      domain_max = convert (sbitsizetype, TYPE_MAX_VALUE (domain));
+
+      /* Align the set.  */
+      if (set_alignment)
+        domain_min = size_binop (BIT_AND_EXPR, domain_min, sbitsize_int (-(int) set_alignment));
+
+#endif /* GPC */
       bitlength = size_binop (PLUS_EXPR,
-			      size_diffop (domain_max, domain_min),
+			      size_binop (MINUS_EXPR, domain_max, domain_min),
+#ifndef GPC
 			      ssize_int (1));
-
+#else /* GPC */
+			      sbitsize_int (1));
+#endif /* GPC */
+
+#ifdef GPC
+      if (TREE_INT_CST_HIGH (bitlength)) {
+        error ("set size too big for host integers");
+        return;
+      }
+#endif /* GPC */
       nbits = tree_low_cst (bitlength, 1);
+#ifdef GPC
+      bitlength = convert (sizetype, bitlength);
+#endif /* GPC */
 
       /* For "small" sets, or "medium-sized" (up to 32 bytes) sets that
 	 are "complicated" (more than one range), initialize (the
@@ -5338,7 +5364,9 @@
       if (GET_MODE (target) != BLKmode || nbits <= 2 * BITS_PER_WORD
 	  || (nbytes <= 32 && TREE_CHAIN (elt) != NULL_TREE))
 	{
+#ifndef GPC
 	  unsigned int set_word_size = TYPE_ALIGN (TREE_TYPE (exp));
+#endif /* not GPC */
 	  enum machine_mode mode = mode_for_size (set_word_size, MODE_INT, 1);
 	  char *bit_buffer = (char *) alloca (nbits);
 	  HOST_WIDE_INT word = 0;
@@ -5351,10 +5379,14 @@
 	    {
 	      if (bit_buffer[ibit])
 		{
+#ifndef GPC
 		  if (BYTES_BIG_ENDIAN)
-		    word |= (1 << (set_word_size - 1 - bit_pos));
+#else /* GPC */
+		  if (set_words_big_endian)
+#endif /* GPC */
+		    word |= ((HOST_WIDE_INT)1 << (set_word_size - 1 - bit_pos));
 		  else
-		    word |= 1 << bit_pos;
+		    word |= (HOST_WIDE_INT)1 << bit_pos;
 		}
 
 	      bit_pos++;  ibit++;
@@ -5386,6 +5418,11 @@
 	    }
 	}
       else if (!cleared)
+   /* GPC expects bits outside the range to be cleared. (fjf1010.pas)
+      Though this check might be "dead" in this GCC version since it only
+      applies to single ranges with constant bounds, and those are apparently
+      always stored as constants anyway, not initialized via `__setbits'. */
+#ifndef GPC
 	/* Don't bother clearing storage if the set is all ones.  */
 	if (TREE_CHAIN (elt) != NULL_TREE
 	    || (TREE_PURPOSE (elt) == NULL_TREE
@@ -5395,6 +5432,7 @@
 		   || (tree_low_cst (TREE_VALUE (elt), 0)
 		       - tree_low_cst (TREE_PURPOSE (elt), 0) + 1
 		       != (HOST_WIDE_INT) nbits))))
+#endif
 	  clear_storage (target, expr_size (exp));
 
       for (; elt != NULL_TREE; elt = TREE_CHAIN (elt))
@@ -5416,13 +5454,23 @@
 	      endbit = startbit;
 	    }
 
+#ifndef GPC
 	  startbit = convert (sizetype, startbit);
 	  endbit = convert (sizetype, endbit);
+#endif /* not GPC */
 	  if (! integer_zerop (domain_min))
 	    {
+#ifdef GPC
+	      startbit = convert (sbitsizetype, startbit);
+	      endbit = convert (sbitsizetype, endbit);
+#endif /* GPC */
 	      startbit = size_binop (MINUS_EXPR, startbit, domain_min);
 	      endbit = size_binop (MINUS_EXPR, endbit, domain_min);
 	    }
+#ifdef GPC
+	  startbit = convert (sizetype, startbit);
+	  endbit = convert (sizetype, endbit);
+#endif /* GPC */
 	  startbit_rtx = expand_expr (startbit, NULL_RTX, MEM,
 				      EXPAND_CONST_ADDRESS);
 	  endbit_rtx = expand_expr (endbit, NULL_RTX, MEM,
@@ -5802,8 +5850,18 @@
 	     index, then convert to sizetype and multiply by the size of the
 	     array element.  */
 	  if (low_bound != 0 && ! integer_zerop (low_bound))
+#ifdef GPC
+	    /* I think that address arithmetic should always be done on sizetype or
+	       its variants -- for Pascal signed seems to be the correct choice (and
+	       generates slightly better code). -- Waldek */
+	    index = convert (sizetype, convert (bitsizetype,
+	              size_binop (MINUS_EXPR,
+	                convert (sbitsizetype, index),
+	                convert (sbitsizetype, low_bound))));
+#else
 	    index = fold (build (MINUS_EXPR, TREE_TYPE (index),
 				 index, low_bound));
+#endif
 
 	  /* If the index has a self-referential type, pass it to a
 	     WITH_RECORD_EXPR; if the component size is, pass our
--- ./gcc/fold-const.c.orig	2004-08-08 20:55:28.000000000 +0200
+++ ./gcc/fold-const.c	2005-05-04 11:09:54.005414992 +0200
@@ -19,6 +19,9 @@
 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 02111-1307, USA.  */
 
+
+/* @@ PATCHED FOR GPC @@ */
+
 /*@@ This file should be rewritten to use an arbitrary precision
   @@ representation for "struct tree_int_cst" and "struct tree_real_cst".
   @@ Perhaps the routines could also be used for bc/dc, and made a lib.
@@ -229,6 +232,17 @@
 	    && TYPE_IS_SIZETYPE (TREE_TYPE (t))))
     return overflow;
 
+#ifdef GPC
+  /* Sign extension for unsigned types (sizetype) seems quite wrong.
+     Though the previous comment says otherwise, but according to the
+     GCC ChangeLog entry of 2000-10-20, I suppose it was meant only
+     to allow for overflows, not to sign extension, for sizetypes.
+     The problem shows, e.g., when converting a bitsizetype to
+     sizetype where the value doesn't fit in ssizetype. -- Frank */
+  if (!TREE_UNSIGNED (TREE_TYPE (t)))
+  {
+#endif
+
   /* If the value's sign bit is set, extend the sign.  */
   if (prec != 2 * HOST_BITS_PER_WIDE_INT
       && (prec > HOST_BITS_PER_WIDE_INT
@@ -251,6 +265,10 @@
 	}
     }
 
+#ifdef GPC
+  }
+#endif
+
   /* Return nonzero if signed overflow occurred.  */
   return
     ((overflow | (low ^ TREE_INT_CST_LOW (t)) | (high ^ TREE_INT_CST_HIGH (t)))
@@ -1185,10 +1203,14 @@
     }
 
   TREE_OVERFLOW (t)
+#ifndef GPC
     = ((notrunc
 	? (!uns || is_sizetype) && overflow
 	: (force_fit_type (t, (!uns || is_sizetype) && overflow)
 	   && ! no_overflow))
+#else /* GPC */
+	  = ((notrunc ? overflow : force_fit_type (t, overflow))
+#endif /* GPC */
        | TREE_OVERFLOW (arg1)
        | TREE_OVERFLOW (arg2));
 
--- ./gcc/function.c.orig	2004-12-16 15:04:34.000000000 +0100
+++ ./gcc/function.c	2005-05-04 11:09:54.009413746 +0200
@@ -38,6 +38,8 @@
    This function changes the DECL_RTL to be a stack slot instead of a reg
    then scans all the RTL instructions so far generated to correct them.  */
 
+/* @@ PATCHED FOR GPC @@ */
+
 #include "config.h"
 #include "system.h"
 #include "rtl.h"
@@ -294,7 +296,12 @@
 static void instantiate_virtual_regs_lossage PARAMS ((rtx));
 
 /* Pointer to chain of `struct function' for containing functions.  */
+#ifndef GPC
 static GTY(()) struct function *outer_function_chain;
+#else /* GPC */
+extern GTY(()) struct function *outer_function_chain;
+struct function *outer_function_chain;
+#endif /* GPC */
 
 /* Given a function decl for a containing function,
    return the `struct function' for it.  */
@@ -5542,7 +5549,11 @@
 	     flow.c that the entire aggregate was initialized.
 	     Unions are troublesome because members may be shorter.  */
 	  && ! AGGREGATE_TYPE_P (TREE_TYPE (decl))
+#ifndef GPC
 	  && DECL_RTL (decl) != 0
+#else /* GPC */
+	  && DECL_RTL_SET_P (decl) 
+#endif /* GPC */
 	  && GET_CODE (DECL_RTL (decl)) == REG
 	  /* Global optimizations can make it difficult to determine if a
 	     particular variable has been initialized.  However, a VAR_DECL
@@ -5557,7 +5568,11 @@
 			   "`%s' might be used uninitialized in this function");
       if (extra_warnings
 	  && TREE_CODE (decl) == VAR_DECL
+#ifndef GPC
 	  && DECL_RTL (decl) != 0
+#else /* GPC */
+        && DECL_RTL_SET_P (decl)
+#endif /* GPC */
 	  && GET_CODE (DECL_RTL (decl)) == REG
 	  && regno_clobbered_at_setjmp (REGNO (DECL_RTL (decl))))
 	warning_with_decl (decl,
@@ -6908,8 +6923,13 @@
       tramp = round_trampoline_addr (XEXP (tramp, 0));
 #ifdef TRAMPOLINE_TEMPLATE
       blktramp = replace_equiv_address (initial_trampoline, tramp);
+# ifndef GPC
       emit_block_move (blktramp, initial_trampoline,
 		       GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL);
+# else
+      emit_block_move (blktramp, initial_trampoline,
+		       GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NO_LIBCALL);
+# endif
 #endif
       trampolines_created = 1;
       INITIALIZE_TRAMPOLINE (tramp, XEXP (DECL_RTL (function), 0), context);
--- ./gcc/gcc.c.orig	2004-04-01 18:55:17.000000000 +0200
+++ ./gcc/gcc.c	2005-05-04 11:33:33.013169565 +0200
@@ -733,8 +733,8 @@
 "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
  %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*}\
  %{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}%{!c:%{!S:-auxbase %b}}\
- %{g*} %{O*} %{W*&pedantic*} %{w} %{std*} %{ansi}\
- %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
+ %{g*} %{O*} %{f*&W*&pedantic*&w} %{std*} %{ansi}\
+ %{v:-version} %{pg:-p} %{p} %{undef}\
  %{Qn:-fno-ident} %{--help:--help}\
  %{--target-help:--target-help}\
  %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}}\
--- ./gcc/integrate.c.orig	2003-07-15 03:05:43.000000000 +0200
+++ ./gcc/integrate.c	2005-05-04 11:09:54.026408449 +0200
@@ -180,6 +180,11 @@
   if (current_function_calls_alloca)
     return N_("function using alloca cannot be inline");
 
+#ifdef GPC
+  if (current_function_calls_longjmp)
+    return N_("function using longjmp cannot be inline");
+#endif
+	  
   if (current_function_calls_setjmp)
     return N_("function using setjmp cannot be inline");
 
@@ -1349,6 +1354,30 @@
     {
       rtx copy, pattern, set;
 
+#ifdef GPC
+      /* CALL_PLACEHOLDERs within inline functions seem to cause
+         trouble in Pascal (fjf709.pas). References to formal
+         parameters of the inline function might get confused. So
+         replace the CALL_PLACEHOLDER by the normal calling code
+         here, at the cost of avoiding this particular combination
+         of optimizations (inlining and tail recursion/sibling
+         calls) -- though I'm not actually sure if it should be done
+         at all; the C frontend also seems to do only inlining in a
+         similar situation, and this might be good enough already.
+
+         I don't understand all the backend does here, and I'm not
+         even sure if the real bug is in the fontend or backend, or
+         whether this is a fix or a work-around ... -- Frank */
+      if (GET_CODE (insn) == CALL_INSN
+          && GET_CODE (PATTERN (insn)) == CALL_PLACEHOLDER)
+        {
+          rtx tmp = PREV_INSN (insn);
+          replace_call_placeholder (insn, sibcall_use_normal);
+          insn = tmp;
+          continue;
+        }
+#endif
+
       map->orig_asm_operands_vector = 0;
 
       switch (GET_CODE (insn))
--- ./gcc/recog.h.orig	2002-07-23 14:08:10.000000000 +0200
+++ ./gcc/recog.h	2005-05-04 11:30:00.938784794 +0200
@@ -224,7 +224,11 @@
 
   const char *const constraint;
 
-  const ENUM_BITFIELD(machine_mode) mode : 16;
+#ifdef GPC
+  ENUM_BITFIELD(machine_mode) const mode : 16;
+#else
+  const ENUM_BITFIELD(machine_mode) const mode : 16;
+#endif
 
   const char strict_low;
 
--- ./gcc/rtl.h.orig	2004-12-04 01:36:38.000000000 +0100
+++ ./gcc/rtl.h	2005-05-04 11:29:24.701479782 +0200
@@ -229,10 +229,18 @@
 /* Define macros to access the `code' field of the rtx.  */
 
 #define GET_CODE(RTX)	    ((enum rtx_code) (RTX)->code)
+#ifdef GPC
+#define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE))
+#else
 #define PUT_CODE(RTX, CODE) ((RTX)->code = (ENUM_BITFIELD(rtx_code)) (CODE))
+#endif
 
 #define GET_MODE(RTX)	    ((enum machine_mode) (RTX)->mode)
+#ifdef GPC
+#define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE))
+#else
 #define PUT_MODE(RTX, MODE) ((RTX)->mode = (ENUM_BITFIELD(machine_mode)) (MODE))
+#endif
 
 /* RTL vector.  These appear inside RTX's when there is a need
    for a variable number of things.  The principle use is inside
@@ -1159,10 +1167,19 @@
 
 /* For a MEM rtx, the alignment in bits.  We can use the alignment of the
    mode as a default when STRICT_ALIGNMENT, but not if not.  */
+#ifdef GPC
+#define MEM_ALIGN0(MODE) (STRICT_ALIGNMENT && MODE != BLKmode \
+ ? GET_MODE_ALIGNMENT (MODE) : BITS_PER_UNIT)
+
 #define MEM_ALIGN(RTX)							\
 (MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->align				\
- : (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode			\
-    ? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT))
+ : MEM_ALIGN0 (GET_MODE (RTX)))
+#else
+#define MEM_ALIGN(RTX)							\
+(MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->align				\
+: (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode			\
+   ? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT))
+#endif
 
 /* Copy the attributes that apply to memory locations from RHS to LHS.  */
 #define MEM_COPY_ATTRIBUTES(LHS, RHS)				\
--- ./gcc/stmt.c.orig	2004-03-03 01:34:43.000000000 +0100
+++ ./gcc/stmt.c	2005-05-04 11:09:54.033406268 +0200
@@ -3557,6 +3557,16 @@
 static void
 expand_nl_goto_receiver ()
 {
+#ifdef GPC
+  /* Clobber the FP when we get here, so we have to make sure it's
+     marked as used by this function.  */
+  emit_insn (gen_rtx_USE (VOIDmode, hard_frame_pointer_rtx));
+
+  /* Mark the static chain as clobbered here so life information
+     doesn't get messed up for it.  */
+  emit_insn (gen_rtx_CLOBBER (VOIDmode, static_chain_rtx));
+#endif
+
 #ifdef HAVE_nonlocal_goto
   if (! HAVE_nonlocal_goto)
 #endif
@@ -3605,6 +3615,14 @@
   if (HAVE_nonlocal_goto_receiver)
     emit_insn (gen_nonlocal_goto_receiver ());
 #endif
+#ifdef GPC
+    /* @@@ This is a kludge.  Not all machine descriptions define a blockage
+     insn, but we must not allow the code we just generated to be reordered
+     by scheduling.  Specifically, the update of the frame pointer must
+     happen immediately, not later.  So emit an ASM_INPUT to act as blockage
+     insn.  */
+  emit_insn (gen_rtx_ASM_INPUT (VOIDmode, ""));
+#endif
 }
 
 /* Make handlers for nonlocal gotos taking place in the function calls in
--- ./gcc/stor-layout.c.orig	2003-10-14 20:43:04.000000000 +0200
+++ ./gcc/stor-layout.c	2005-05-04 11:09:54.035405645 +0200
@@ -20,6 +20,8 @@
 02111-1307, USA.  */
 
 
+/* @@ PATCHED FOR GPC 20050320 @@ */
+
 #include "config.h"
 #include "system.h"
 #include "tree.h"
@@ -57,6 +59,19 @@
    called only by a front end.  */
 static int reference_types_internal = 0;
 
+#ifdef GPC
+/* The word size of a bitstring or (power-)set value, in bits.
+   Must be non-zero.
+   May be overridden by front-ends.  */
+unsigned int set_word_size = BITS_PER_UNIT;
+
+/* If non-zero, bits in (power-)sets start with the highest bit.
+   May be overridden by front-ends.
+   In order to be backward-compatible, the Chill frontend should
+   initialize this to BYTES_BIG_ENDIAN.  */
+unsigned int set_words_big_endian = 0;
+
+#endif /* GPC */
 static void finalize_record_size	PARAMS ((record_layout_info));
 static void finalize_type_size		PARAMS ((tree));
 static void place_union_field		PARAMS ((record_layout_info, tree));
@@ -1690,7 +1705,11 @@
 
 		if (maxvalue - minvalue == 1
 		    && (maxvalue == 1 || maxvalue == 0))
+#ifndef GPC
 		  element_size = integer_one_node;
+#else /* GPC */
+		  element_size = bitsize_int(1);
+#endif /* GPC */
 	      }
 
 	    TYPE_SIZE (type) = size_binop (MULT_EXPR, element_size,
@@ -1802,6 +1821,7 @@
 	abort ();
       else
 	{
+#ifndef GPC
 #ifndef SET_WORD_SIZE
 #define SET_WORD_SIZE BITS_PER_WORD
 #endif
@@ -1820,9 +1840,45 @@
 
 	  TYPE_SIZE (type) = bitsize_int (rounded_size);
 	  TYPE_SIZE_UNIT (type) = size_int (rounded_size / BITS_PER_UNIT);
+#else /* GPC */
+	  int alignment = set_alignment ? set_alignment : set_word_size;
+	  tree lower_bound = convert (sbitsizetype, 
+			TYPE_MIN_VALUE (TYPE_DOMAIN (type))); 
+	  tree upper_bound = convert (sbitsizetype,
+			TYPE_MAX_VALUE (TYPE_DOMAIN (type))); 
+	  tree size_in_bits, rounded_size;
+	  if (set_alignment) 
+	    lower_bound = round_down (lower_bound, alignment);
+	  size_in_bits = size_binop (PLUS_EXPR,
+				size_binop (MINUS_EXPR,
+					upper_bound,
+					lower_bound),
+				sbitsize_int(1));
+	  rounded_size = round_up (size_in_bits, alignment);
+				
+	  if ( TREE_INT_CST_HIGH (rounded_size) 
+		|| TREE_INT_CST_LOW (rounded_size) > (unsigned) alignment) 
+	    {
+		TYPE_MODE (type) = BLKmode;
+	    }
+	  else 
+	    {
+		TYPE_MODE (type) = mode_for_size (alignment, MODE_INT, 1);
+	    } 
+
+	  TYPE_SIZE (type) = convert (bitsizetype, rounded_size);
+	  TYPE_SIZE_UNIT (type) = convert (sizetype, 
+				size_binop ( CEIL_DIV_EXPR,
+					rounded_size, 
+					sbitsize_int (BITS_PER_UNIT)));
+#endif /* GPC */
 	  TYPE_ALIGN (type) = alignment;
 	  TYPE_USER_ALIGN (type) = 0;
+#ifndef GPC
 	  TYPE_PRECISION (type) = size_in_bits;
+#else /* GPC */
+	  TYPE_PRECISION (type) = TREE_INT_CST_LOW (size_in_bits);
+#endif /* GPC */
 	}
       break;
 
--- ./gcc/system.h.orig	2004-01-12 23:54:20.000000000 +0100
+++ ./gcc/system.h	2005-05-04 11:27:28.840666343 +0200
@@ -502,7 +502,11 @@
    FIXME: provide a complete autoconf test for buggy enum bitfields.  */
 
 #if (GCC_VERSION > 2000)
+#ifdef GPC
+#define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
+#else
 #define ENUM_BITFIELD(TYPE) enum TYPE
+#endif
 #else
 #define ENUM_BITFIELD(TYPE) unsigned int
 #endif
--- ./gcc/tree.c.orig	2004-01-29 19:58:13.000000000 +0100
+++ ./gcc/tree.c	2005-05-04 11:09:54.040404087 +0200
@@ -19,6 +19,8 @@
 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 02111-1307, USA.  */
 
+/* @@ PATCHED FOR GPC @@ */
+
 /* This file contains the low level primitives for operating on tree nodes,
    including allocation, list operations, interning of identifiers,
    construction of data type nodes and statement nodes,
@@ -3605,6 +3607,9 @@
   TYPE_SIZE_UNIT (itype) = TYPE_SIZE_UNIT (type);
   TYPE_ALIGN (itype) = TYPE_ALIGN (type);
   TYPE_USER_ALIGN (itype) = TYPE_USER_ALIGN (type);
+#ifdef GPC
+  TREE_UNSIGNED (itype) = TREE_UNSIGNED (type);
+#endif
 
   if (host_integerp (lowval, 0) && highval != 0 && host_integerp (highval, 0))
     return type_hash_canon (tree_low_cst (highval, 0)
@@ -4547,6 +4552,14 @@
     = tree_low_cst (TYPE_MIN_VALUE (TYPE_DOMAIN (TREE_TYPE (init))), 0);
   tree non_const_bits = NULL_TREE;
 
+#ifdef GPC
+  /* Align the set.  */
+  if (set_alignment)
+    /* Note: `domain_min -= domain_min % set_alignment' would be wrong for negative
+       numbers (rounding towards 0, while we have to round towards -inf). */
+    domain_min &= -(int) set_alignment;
+#endif /* GPC */
+
   for (i = 0; i < bit_size; i++)
     buffer[i] = 0;
 
@@ -4568,7 +4581,10 @@
 
 	  if (lo_index < 0 || lo_index >= bit_size
 	      || hi_index < 0 || hi_index >= bit_size)
-	    abort ();
+	    {
+	      error ("invalid set initializer");
+	      return NULL_TREE;
+	    }
 	  for (; lo_index <= hi_index; lo_index++)
 	    buffer[lo_index] = 1;
 	}
@@ -4579,7 +4595,7 @@
 	    = tree_low_cst (TREE_VALUE (vals), 0) - domain_min;
 	  if (index < 0 || index >= bit_size)
 	    {
-	      error ("invalid initializer for bit string");
+	      error ("invalid set initializer");
 	      return NULL_TREE;
 	    }
 	  buffer[index] = 1;
@@ -4600,9 +4616,14 @@
      int wd_size;
 {
   int i;
+#ifdef GPC
+  int bit_size = wd_size * BITS_PER_UNIT;
+  unsigned int bit_pos = 0;
+#else /* not GPC */
   int set_word_size = BITS_PER_UNIT;
   int bit_size = wd_size * set_word_size;
   int bit_pos = 0;
+#endif /* not GPC */
   unsigned char *bytep = buffer;
   char *bit_buffer = (char *) alloca (bit_size);
   tree non_const_bits = get_set_constructor_bits (init, bit_buffer, bit_size);
@@ -4612,6 +4633,24 @@
 
   for (i = 0; i < bit_size; i++)
     {
+#ifdef GPC
+      if (bit_buffer[i])
+	{
+          int k = bit_pos / BITS_PER_UNIT;
+          if (WORDS_BIG_ENDIAN)
+            k = set_word_size / BITS_PER_UNIT - 1 - k;
+	  if (set_words_big_endian)
+	    bytep[k] |= (1 << (BITS_PER_UNIT - 1 - bit_pos % BITS_PER_UNIT));
+	  else
+	    bytep[k] |= (1 << (bit_pos % BITS_PER_UNIT));
+	}
+      bit_pos++;
+      if (bit_pos >= set_word_size)
+	{
+          bit_pos = 0;
+          bytep += set_word_size / BITS_PER_UNIT;
+        }
+#else /* not GPC */
       if (bit_buffer[i])
 	{
 	  if (BYTES_BIG_ENDIAN)
@@ -4622,6 +4661,7 @@
       bit_pos++;
       if (bit_pos >= set_word_size)
 	bit_pos = 0, bytep++;
+#endif /* not GPC */
     }
   return non_const_bits;
 }
@@ -4908,6 +4948,12 @@
 	    && ! REAL_VALUE_MINUS_ZERO (TREE_REAL_CST (TREE_IMAGPART (init))));
     case CONSTRUCTOR:
       {
+#ifdef GPC
+        /* A set constructor `[0]' is not the same as `[]'. */
+        if (TREE_CODE (TREE_TYPE (init)) == SET_TYPE && TREE_OPERAND (init, 1))
+          return false;
+#endif
+
 	if (AGGREGATE_TYPE_P (TREE_TYPE (init)))
 	  {
 	    tree aggr_init = TREE_OPERAND (init, 1);
--- ./gcc/tree.def.orig	2002-10-24 20:01:37.000000000 +0200
+++ ./gcc/tree.def	2005-05-04 11:09:54.041403776 +0200
@@ -21,6 +21,8 @@
 02111-1307, USA.  */
 
  
+/* @@ PATCHED FOR GPC @@ */
+
 /* The third argument can be:
    'x' for an exceptional code (fits no category).
    't' for a type object code.
@@ -508,7 +510,8 @@
    some field in an object of the type contains a value that is used in
    the computation of another field's offset or size and/or the size of
    the type.  The positions and/or sizes of fields can vary from object
-   to object of the same type.
+   to object of the same type or even for one and the same object within
+   its scope.
 
    Record types with discriminants in Ada or schema types in Pascal are
    examples of such types.  This mechanism is also used to create "fat
@@ -532,7 +535,16 @@
    For example, if your type FOO is a RECORD_TYPE with a field BAR,
    and you need the value of <variable>.BAR to calculate TYPE_SIZE
    (FOO), just substitute <variable> above with a PLACEHOLDER_EXPR
-   what contains both the expression we wish to
+   whose TREE_TYPE is FOO.  Then construct your COMPONENT_REF with
+   the PLACEHOLDER_EXPR as the first operand (which has the correct
+   type).  Later, when the size is needed in the program, the back-end
+   will find this PLACEHOLDER_EXPR and generate code to calculate the
+   actual size at run-time.  In the following, we describe how this
+   calculation is done.
+
+   When we wish to evaluate a size or offset, we check whether it
+   contains a PLACEHOLDER_EXPR.  If it does, we construct a
+   WITH_RECORD_EXPR that contains both the expression we wish to
    evaluate and an expression within which the object may be found.
    The latter expression is the object itself in the simple case of an
    Ada record with discriminant, but it can be the array in the case of
--- ./gcc/tree.h.orig	2004-01-03 06:14:23.000000000 +0100
+++ ./gcc/tree.h	2005-05-04 11:26:48.925524637 +0200
@@ -22,6 +22,9 @@
 #ifndef GCC_TREE_H
 #define GCC_TREE_H
 
+
+/* @@ PATCHED FOR GPC @@ */
+
 #include "machmode.h"
 #include "version.h"
 #include "location.h"
@@ -281,8 +284,13 @@
 /* The tree-code says what kind of node it is.
    Codes are defined in tree.def.  */
 #define TREE_CODE(NODE) ((enum tree_code) (NODE)->common.code)
+#ifndef GPC
 #define TREE_SET_CODE(NODE, VALUE) \
 ((NODE)->common.code = (ENUM_BITFIELD (tree_code)) (VALUE))
+#else
+#define TREE_SET_CODE(NODE, VALUE) \
+((NODE)->common.code = (VALUE))
+#endif
 
 /* When checking is enabled, errors will be generated if a tree node
    is accessed incorrectly. The macros abort with a fatal error.  */
@@ -2586,6 +2594,14 @@
 
 /* If nonzero, the alignment of a bitstring or (power-)set value, in bits.  */
 extern unsigned int set_alignment;
+#ifdef GPC
+
+/* The word size of a bitstring or (power-)set value, in bits.  */
+extern unsigned int set_word_size;
+
+/* If non-zero, bits in (power-)sets start with the highest bit.  */
+extern unsigned int set_words_big_endian;
+#endif /* GPC */
 
 /* Concatenate two lists (chains of TREE_LIST nodes) X and Y
    by making the last node in X point to Y.
--- ./gcc/varasm.c.orig	2004-04-15 04:05:05.000000000 +0200
+++ ./gcc/varasm.c	2005-05-04 11:24:30.421841269 +0200
@@ -2602,6 +2602,9 @@
     case NOP_EXPR:
     case CONVERT_EXPR:
     case NON_LVALUE_EXPR:
+#ifdef GPC
+    case VIEW_CONVERT_EXPR:
+#endif
       return build1 (TREE_CODE (exp), TREE_TYPE (exp),
 		     copy_constant (TREE_OPERAND (exp, 0)));
 
@@ -3866,7 +3869,11 @@
 	}
 
       /* Allow conversions to union types if the value inside is okay.  */
-      if (TREE_CODE (TREE_TYPE (value)) == UNION_TYPE)
+      if (TREE_CODE (TREE_TYPE (value)) == UNION_TYPE
+#ifdef GPC
+	  || TREE_CODE (TREE_TYPE (value)) == ARRAY_TYPE
+#endif
+         )
 	return initializer_constant_valid_p (TREE_OPERAND (value, 0),
 					     endtype);
       break;
--- ./gcc/version.c.orig	2005-05-03 12:56:18.000000000 +0200
+++ ./gcc/version.c	2005-05-04 11:33:32.905201453 +0200
@@ -15,4 +15,8 @@
    forward us bugs reported to you, if you determine that they are
    not bugs in your modifications.)  */
 
+#ifdef GPC
+const char bug_report_url[] = "<URL:http://www.gnu-pascal.de/todo.html>";
+#else
 const char bug_report_url[] = "<URL:http://gcc.gnu.org/bugs.html>";
+#endif