configure.ac: Turn off the stack protector for the preloader.

[Mike McCormack]

---
As discussed in bug 6550, Ubuntu switches on -fstack-protector by 
default, and the stack protector code assumes glibc has initialized %gs, 
which is not the case for binaries not linked against glibc.

wine-preloader crashes on these platforms.  This code detects whether we 
can use -fno-stack-protector to turn off the stack protector, and if so 
compiles wine-preloader with that flag.

After applying this patch, you need to run autoconf.

Mike


see: http://bugs.winehq.org/show_bug.cgi?id=6550

  configure.ac       |   14 ++++++++++++++
  loader/Makefile.in |    3 ++-
  2 files changed, 16 insertions(+), 1 deletions(-)
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