Redistributable builds

Introduction

If a binary runs on a different machine depends on a lot of factors. The following sections provide some tips to maximize portability. In general Windows binaries are more portable than *nix binaries.

CPU Architecture Optimization

Default compiler flags

/favor:blend: Optimizes for AMD and Intel architectures, see MSDN docs
/arch:sse2 on 32-bit, /arch undefined on 64-bit

Optimization CMake options

OGS_CPU_ARCHITECTURE: possible values AMD64 or INTEL64 (sets /favor:{AMD64 | INTEL64} flag)

Default compiler flags

-march=native: Optimizes for current CPU

CMake options

For redistribution

OGS_CPU_ARCHITECTURE: set to generic for good balance between optimization and portability; set to core2 for maximum portability, more info on GCC docs

For optimization

OGS_CPU_ARCHITECTURE: tot to native for best optimization for your current CPU, possible values are listed here, more info on GCC docs

See Linux-tab!

Shared vs. static libraries

Try to use static libraries as much as possible. For OGS itself use BUILD_SHARED_LIBS=OFF, which already defaults to OFF.

Package the build

Use the package-target which tries to gather all dependencies and fixes up shared library paths:

make package

This creates a zip- or tar-archive which should be redistributable.

This article was written by Lars Bilke. If you are missing something or you find an error please let us know.
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