[Bug 4412] New: disable stack protector on the wine loader

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=4412

Summary: disable stack protector on the wine loader
           Product: Wine
           Version: CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-loader
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

we've been using this in Gentoo for quite some time but i havent sent it
upstream as ssp support in gcc used to be a Gentoo-only feature ... but with
newer versions of gcc (namely gcc-4.1+), ssp support has been added officially

so this patch will detect if the compiler supports the -fno-stack-protector flag
and if it does, automatically build the loader with it (as building the loader
with -fstack-protector will fail)

the patch is based on code found in glibc's configure script