[Bug c/52390] New: only linux uses nptl

["samuel dot thibault at ens-lyon dot org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52390

             Bug #: 52390
           Summary: only linux uses nptl
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: samuel.thibault@ens-lyon.org


Created attachment 26756
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26756
mask __SIGRTMIN{,+1} on glibc linux only

Hello,

src/libgcc/generic-morestack.c currently (as of 4.6.2 in
debian, which was updated to r184373 for the 4.6 branch) in
__generic_morestack_set_initial_sp() masks out __SIGRTMIN and
__SIGRTMIN+1 on all glibc platforms (ifdef __GLIBC__). It used to do
that on all linux platforms (ifdef __linux__).  I guess the change was
made to avoid issues with uclibc and such on linux, but on the other it
brings issues with glibc on other ports that linux: NPTL is only ported
to Linux, and I doubt there'll be other ports actually, since it is so
much tied to the Linux kernel.

It should thus turned into if defined(__GLIBC__) && defined(__linux__),
as attached patch does.

Samuel