[En-Nut-Discussion] GCC optimizations

[Harald Kipp]

Coleman Brumley wrote:
> Would the gcc built for Linux work any differently?  

Two gcc builds for Linux will provide two different results, unless they use

1. The same GCC version
2. The same binutils version
3. The same runtime library version (typically newlib)
4. The same patches

Item 4 is a critical one. Several times I built a toolchain from source
packages, but didn't apply all the required patches. It still worked
find for me, but may have failed with other code, other compile options
or other linker options.

If all four items are the same, there _should_ be no difference between
toolchains built under Windows, Linux or OS X. In very rare cases the
different APIs provided by the OS may have an impact on the target
binary. But that should be considered a bug, or, more trendy, an issue.

Harald