OSF Solaris Linux migration

INTRODUCTION

I've been working on many aspect of porting NOMAD, DZero, CLE0 software among different platforms. Recently I worked on a port of 800+ packages from Solaris to Linux for CLEO collaboration.

ENVIRONMENT

Three platform has been officially supported:

Tru64/OSF1
SunOS 2.6 and Solaris 2.8, 9, 10
Linux, RedHat 9, RedHat Enterprise 3, 4, Scientific Linux

PROBLEM'S DISCOVERED

There were several categories solved during this transition:

compiler/preprocessor/linker bugs
STL-related bugs
OS-specific bugs
user-related bugs.

WHAT WAS DONE

The table below summirizes a platform specific compiler options applied during this transition:

Tool/OS	Tru64	Solaris	Linux
compiler	cxx/f77	CC/f77	g++/g77
version	Compaq v6.2/Digital X5.2	Sun WorkShop 6, v5.3	v3.2.2
debugger	ladebug	dbx	gdb
C++ flags	cxx -O -Wall -nopt -nocompress	CC -instances=global -KPIC -mt -O	g++ -I- -O -fPIC
Fortran flags	f77 -O -u static	f77 -O -u -KPIC -mt	f77 -I- -O -fPIC -MM -fno-automatic -fno-second-underscore -finit-local-zero

A common set of Makefile rules has been applied to every package. A particular example can be found here (please note that all rights are reserved by CLEO collaboration and Cornell University).

RESULTS

We successfully deployed over 800 packages between Tru64, Solaris and Linux platforms.