steps for porting on powerpc64

sudo apt-get install autoconf libtool g++-4.1 libreadline5-dev valgrind bison

checkout latest release version  (almost stable)
cvs -d:pserver:anonymous@firebird.cvs.sourceforge.net:/cvsroot/firebird login
cvs -z3 -d:pserver:anonymous@firebird.cvs.sourceforge.net:/cvsroot/firebird co -r B2_0_Release firebird2

implementation error (ppc is not defined)
../src/jrd/inf.cpp: In function 'int INF_database_info(const SCHAR*, SSHORT, SCHAR*, SSHORT)':
../src/jrd/inf.cpp:406: error: 'IMPLEMENTATION' was not declared in this scope


patch the src/jrd/common.h

--- src/jrd/common.h    2004-12-01 07:49:10.076214624 -0800
+++ src/jrd/common.h_ppc        2004-12-01 07:46:23.809196816 -0800
@@ -129,6 +129,11 @@
 #define IMPLEMENTATION  isc_info_db_impl_linux_amd64 /* 66  next higher unique number, See you later  */
 #endif

+#ifdef PPC64
+#define IMPLEMENTATION  isc_info_db_impl_linux_ppc64 /* 68 next higher unique number, See you later  */
+#endif
+
+
 #ifdef i386
 #define I386
 #define IMPLEMENTATION  isc_info_db_impl_i386 /* 60  next higher unique number, See you later  */


in src/jrd/inf_pub.h search for isc_info_db_impl_freebsd_amd64 and add 


        isc_info_db_impl_freebsd_amd64 = 67,
        isc_info_db_impl_linux_ppc64 = 68,


in src/jrd/pag.cpp search for CLASS_FREEBSD_AMD64 

and add new class

static const int CLASS_LINUX_PPC64 = 26;// LINUX  on PPC64

change CLASS_MAX to 

static const int CLASS_MAX = CLASS_LINUX_PPC64


add ArchitectureType in archMatrix (in our case BigEndian)

archBigEndian // CLASS_LINUX_PPC64

Define the const SSHORT CLASS after the AMD64 one 


#if defined LINUX && defined AMD64
const SSHORT CLASS              = CLASS_LINUX_AMD64;
#endif

in src/jrd/utl.cpp
search for  "Firebird/FreeBSD/amd64",   /* 67 */
and add 
 "Firebird/linux PPC64",     /* 68 */


in src/remote/xdr.cpp search for 
#elif defined(sparc) || defined(PowerPC)
and replace and add PPC64 define check 

#elif defined(sparc) || defined(PowerPC) || defined(PPC64)

change in the 
 gen/make.platform 
and add DEV_FLAGS=-DPPC64

it should look like this
DEV_FLAGS=-ggdb -DLINUX -pipe -MMD -p -fPIC -Wall -Wno-switch -DPPC64

.:(firebird):..:(databases):..:(sql):.