[FFmpeg-devel] [PATCH] mipsen require compilation with -DPIC since gcc-4.3

[Reinhard Tartler]

M?ns Rullg?rd <mans at mansr.com> writes:

> Mentioning this in the original email would have spared us this
> discussion.  Do you have a reference for that?

Quoting from http://gcc.gnu.org/gcc-4.3/changes.html

MIPS
Changes to existing configurations

    [...]
    * GNU/Linux configurations now generate -mno-shared code unless
      overridden by -fpic, -fPIC, -fpie or -fPIE.
    [...]

You can verify Thiemo as Linux/MIPS gcc upstream developer by checking
your gcc changelog.

Btw, MIPS has only very recently added non-PIC executable
support. c.f. http://www.linux-mips.org/archives/linux-mips/2008-06/msg00280.html

In short, there is no performance penalty with adding this switch at
all. GCC 4.3 brings some performance when linking ffmpeg statically, but
breaks when compiled at shared libs now.  ths told me in private query
that the fact that it did not fail was sheer luck. The fact that it ld
doesn't fail can be considered as a bug.

What else references do you need for this single one-liner?!


-- 
Gruesse/greetings,
Reinhard Tartler, KeyID 945348A4