Let gf2x use --libdir and make SAGE_FAT_BINARY work.
Replace symlink in a more portable way.
Make generic build of gf2x smarter.
More fixes for gf2x generic build.
Support SSE2 on x86_64 for gf2x.
Simplify generic build of gf2x.
Properly autoreconfed patches.
Document new gf2x patch.
Prevent autotools to regenerate files.
Simplify gf2x patches
Make the SSE2 stuff work if the compiler does not support SSE2.
Improve sse2/pclmul detection and enabling
Merge remote-tracking branch 'trac/develop' into ticket/15316
Update git branch for gf2x SSE2 and Cygwin fixes.
Disable openmp in binary builds
Make sage-bdist executable
Always use out ATLAS
Trac 17375: Maxima should not need a working C compiler to run
Trac #17375: Maxima should not need a working C compiler to run

It turns out that after the upgrade to Maxima 5.34.1 (#16908), a working
C compiler is needed to run Maxima on ECL, which is of course
inacceptable.  The problem is caused by the compilation of four regular
expressions on startup.

As a workaround until this is fixed upstream, we revert the Maxima
commit introducing this compilation.

Initial report and diagnosis: https://groups.google.com/forum/#!topic
/sage-support/wj4ObDhv_xE

Upstream report: http://sourceforge.net/p/maxima/bugs/2845/

URL: http://trac.sagemath.org/17375
Reported by: pbruin
Ticket author(s): Peter Bruin
Reviewer(s): Karl-Dieter Crisman
Trac #17349: R fails with version `GOMP_4.0' not found

Compiling R with gcc 4.9.2 can fail because of OpenMP library version
mismatch. This is on the "snapperkob" build bot:
{{{
/home/buildbot/build/sage/snapperkob/sage_git/build/local/var/tmp/sage/b
uild/r-3.1.1.p0/src/bin/exec/R: /usr/lib/x86_64-linux-gnu/libgomp.so.1:
version `GOMP_4.0' not found (required by /home/buildbot/build/sage/snap
perkob/sage_git/build/local/var/tmp/sage/build/r-3.1.1.p0/src/lib/libR.s
o)
make[6]: *** [all] Error 1
make[6]: Leaving directory `/home/buildbot/build/sage/snapperkob/sage_gi
t/build/local/var/tmp/sage/build/r-3.1.1.p0/src/src/library/tools'
make[5]: *** [R] Error 1
make[5]: Leaving directory `/home/buildbot/build/sage/snapperkob/sage_gi
t/build/local/var/tmp/sage/build/r-3.1.1.p0/src/src/library'
make[4]: *** [R] Error 1
make[4]: Leaving directory `/home/buildbot/build/sage/snapperkob/sage_gi
t/build/local/var/tmp/sage/build/r-3.1.1.p0/src/src'
make[3]: *** [R] Error 1
make[3]: Leaving directory `/home/buildbot/build/sage/snapperkob/sage_gi
t/build/local/var/tmp/sage/build/r-3.1.1.p0/src'
Error building R.
}}}

URL: http://trac.sagemath.org/17349
Reported by: vbraun
Ticket author(s): Volker Braun
Reviewer(s): François Bissey