VM now compiles with GCC 3.4 on Windows

vm/code_gc.cpp

@@ -303,7 +303,7 @@ cell heap_size(heap *heap)
 }
 
 /* Compute where each block is going to go, after compaction */
-	cell compute_heap_forwarding(heap *heap, std::tr1::unordered_map<heap_block *,char *> &forwarding)
+	cell compute_heap_forwarding(heap *heap, unordered_map<heap_block *,char *> &forwarding)
 {
 	heap_block *scan = first_block(heap);
 	char *address = (char *)first_block(heap);
@@ -324,7 +324,7 @@ cell heap_size(heap *heap)
 	return (cell)address - heap->seg->start;
 }
 
-	void compact_heap(heap *heap, std::tr1::unordered_map<heap_block *,char *> &forwarding)
+	void compact_heap(heap *heap, unordered_map<heap_block *,char *> &forwarding)
 {
 	heap_block *scan = first_block(heap);
 

vm/code_gc.hpp

@@ -25,8 +25,8 @@ void unmark_marked(heap *heap);
 void free_unmarked(heap *heap, heap_iterator iter);
 void heap_usage(heap *h, cell *used, cell *total_free, cell *max_free);
 cell heap_size(heap *h);
-cell compute_heap_forwarding(heap *h, std::tr1::unordered_map<heap_block *,char *> &forwarding);
-void compact_heap(heap *h, std::tr1::unordered_map<heap_block *,char *> &forwarding);
+cell compute_heap_forwarding(heap *h, unordered_map<heap_block *,char *> &forwarding);
+void compact_heap(heap *h, unordered_map<heap_block *,char *> &forwarding);
 
 inline static heap_block *next_block(heap *h, heap_block *block)
 {

vm/code_heap.cpp

@@ -119,7 +119,7 @@ PRIMITIVE(code_room)
 	dpush(tag_fixnum(max_free / 1024));
 }
 
-static std::tr1::unordered_map<heap_block *,char *> forwarding;
+static unordered_map<heap_block *,char *> forwarding;
 
 code_block *forward_xt(code_block *compiled)
 {

vm/data_heap.cpp

@@ -241,7 +241,7 @@ cell unaligned_object_size(object *pointer)
 		return callstack_size(untag_fixnum(((callstack *)pointer)->length));
 	default:
 		critical_error("Invalid header",(cell)pointer);
-		return -1; /* can't happen */
+		return 0; /* can't happen */
 	}
 }
 
@@ -283,7 +283,7 @@ cell binary_payload_start(object *pointer)
 		return sizeof(wrapper);
 	default:
 		critical_error("Invalid header",(cell)pointer);
-		return -1; /* can't happen */
+                return 0; /* can't happen */
 	}
 }
 

vm/dispatch.cpp

@@ -103,7 +103,7 @@ static cell lookup_hairy_method(cell obj, cell methods)
 			break;
 		default:
 			critical_error("Bad methods array",methods);
-			return -1;
+			return 0;
 		}
 	}
 }

vm/inline_cache.cpp

@@ -70,7 +70,7 @@ static cell determine_inline_cache_type(array *cache_entries)
 	if(!seen_hi_tag && !seen_tuple) return PIC_TAG;
 
 	critical_error("Oops",0);
-	return -1;
+	return 0;
 }
 
 static void update_pic_count(cell type)

vm/layouts.hpp

@@ -93,6 +93,9 @@ class object;
 struct header {
 	cell value;
 
+        /* Default ctor to make gcc 3.x happy */
+        header() { abort(); }
+
 	header(cell value_) : value(value_ << TAG_BITS) {}
 
 	void check_header() {

vm/master.hpp

@@ -22,7 +22,15 @@
 #include <sys/param.h>
 
 /* C++ headers */
-#include <tr1/unordered_map>
+#if __GNUC__ == 4
+        #include <tr1/unordered_map>
+        #define unordered_map std::tr1::unordered_map
+#elif __GNUC__ == 3
+        #include <boost/unordered_map.hpp>
+        #define unordered_map boost::unordered_map
+#else
+        #error Factor requires GCC 3.x or later
+#endif
 
 /* Factor headers */
 #include "layouts.hpp"

vm/math.cpp

@@ -377,7 +377,7 @@ VM_C_API fixnum to_fixnum(cell tagged)
 		return bignum_to_fixnum(untag<bignum>(tagged));
 	default:
 		type_error(FIXNUM_TYPE,tagged);
-		return -1; /* can't happen */
+		return 0; /* can't happen */
 	}
 }
 
@@ -444,7 +444,7 @@ VM_C_API s64 to_signed_8(cell obj)
 		return bignum_to_long_long(untag<bignum>(obj));
 	default:
 		type_error(BIGNUM_TYPE,obj);
-		return -1;
+		return 0;
 	}
 }
 
@@ -466,7 +466,7 @@ VM_C_API u64 to_unsigned_8(cell obj)
 		return bignum_to_ulong_long(untag<bignum>(obj));
 	default:
 		type_error(BIGNUM_TYPE,obj);
-		return -1;
+		return 0;
 	}
 }
 

vm/os-windows-nt.cpp

@@ -11,7 +11,7 @@ s64 current_micros()
 		- EPOCH_OFFSET) / 10;
 }
 
-long exception_handler(PEXCEPTION_POINTERS pe)
+FACTOR_STDCALL LONG exception_handler(PEXCEPTION_POINTERS pe)
 {
 	PEXCEPTION_RECORD e = (PEXCEPTION_RECORD)pe->ExceptionRecord;
 	CONTEXT *c = (CONTEXT*)pe->ContextRecord;
@@ -43,10 +43,10 @@ long exception_handler(PEXCEPTION_POINTERS pe)
 
 void c_to_factor_toplevel(cell quot)
 {
-	if(!AddVectoredExceptionHandler(0, exception_handler))
+	if(!AddVectoredExceptionHandler(0, (PVECTORED_EXCEPTION_HANDLER)exception_handler))
 		fatal_error("AddVectoredExceptionHandler failed", 0);
 	c_to_factor(quot);
-	RemoveVectoredExceptionHandler((void*)exception_handler);
+	RemoveVectoredExceptionHandler((void *)exception_handler);
 }
 
 void open_console()

vm/os-windows-nt.hpp

@@ -17,8 +17,10 @@ typedef char symbol_char;
 #define FACTOR_DLL L"factor.dll"
 #define FACTOR_DLL_NAME "factor.dll"
 
+#define FACTOR_STDCALL __attribute__((stdcall))
+
 void c_to_factor_toplevel(cell quot);
-long exception_handler(PEXCEPTION_POINTERS pe);
+FACTOR_STDCALL LONG exception_handler(PEXCEPTION_POINTERS pe);
 void open_console();
 
 }