--- firebird-1.5.3.4870/src/jrd/pag.cpp.org	2007-01-02 13:51:03.000000000 +0000
+++ firebird-1.5.3.4870/src/jrd/pag.cpp	2007-01-02 13:56:47.000000000 +0000
@@ -143,8 +143,11 @@
 static const int CLASS_NETBSD_I386 = 22;  // NetBSD/i386
 static const int CLASS_DARWIN_PPC = 23;   // Darwin/PowerPC
 static const int CLASS_LINUX_AMD64 = 24;  // LINUX on AMD64 systems
+static const int CLASS_FREEBSD_AMD64 = 25;// FreeBSD/amd64
+static const int CLASS_WINDOWS_AMD64 = 26;// Windows/amd64
+static const int CLASS_LINUX_PPC = 27;    // LINUX/PowerPC
 
-static const int CLASS_MAX10 = CLASS_LINUX_AMD64;
+static const int CLASS_MAX10 = CLASS_LINUX_PPC;
 
 // ARCHITECTURE COMPATIBILITY CLASSES
 
@@ -188,7 +191,10 @@
 	archIntel86, // CLASS_FREEBSD_I386
     archIntel86, // CLASS_NETBSD_I386
 	archUnknown, // CLASS_DARWIN_PPC
-	archUnknown  // CLASS_LINUX_AMD64
+	archUnknown, // CLASS_LINUX_AMD64
+	archUnknown, // CLASS_FREEBSD_AMD64
+	archUnknown, // CLASS_WINDOWS_AMD64
+	archUnknown  // CLASS_LINUX_PPC
 };
 
 #ifdef sun
@@ -256,6 +262,9 @@
 #define CLASS		CLASS_DARWIN_PPC
 #endif
 
+#ifdef PPC
+#define CLASS		CLASS_LINUX_PPC
+#endif
 
 int PAG_add_clump(
 				  SLONG page_num,