Bump version: 7.7 -> 7.9

Signed-off-by: Austin Seipp <austin@well-typed.com>
Update Win32 submodule to pull in version bump

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Fix glitch in core-spec pdf
Fix iOS build (fallout from 28b031c506)

As Luke Iannini reported, the Clang iOS cross compiler apparently
doesn't support __thread for some bizarre reason, so unfortunately they
too must fall back to pthread_{get,set}specific.

Signed-off-by: Austin Seipp <austin@well-typed.com>
Add a perf-cross build setting.

This is for building performance-optimized cross compilers (e.g. the iOS
target.)

Signed-off-by: Austin Seipp <austin@well-typed.com>
Bump win32 version number in release notes

Signed-off-by: Austin Seipp <austin@well-typed.com>
Remove Coercible documentation from compiler/prelude/primops.txt.pp

We want it to show up in GHC.Exts, so we need to put the documentation
in GHC.Types, where the datatype Coercible is defined.
Fix some edge cases in 8f8bd88c (#7134)

Signed-off-by: Austin Seipp <austin@well-typed.com>
Update to latest Cabal 1.18 branch tip

This update pulls in the fix for #8266

(recommended add-on reading for those interested in OSX linker peculiarities:
https://github.com/haskell/cabal/issues/1660#issuecomment-33701508 )

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
No need to remove testsuite/.git

as there is no testsuite/.git any more.
Individual sdist-foo targets

so that one can build a source distribution without downloading the
windows tarballs.