emacs: enable vfork on darwin

Issue described here:
https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00201.html

In particular fixes lagging magit, as described here:
https://magit.vc/manual/magit/MacOS-Performance.html

The .patch file is taken from the reference there.

The fix is in Emacs master, so this patch should be removed when switching to
Emacs 26.1.
This commit is contained in:
Moritz Drexl 2017-12-16 12:21:46 +01:00 committed by Orivej Desh
parent 8dc107be5b
commit 3d52d43dd9

View file

@ -36,9 +36,19 @@ stdenv.mkDerivation rec {
enableParallelBuilding = true;
patches =
[ ./clean-env.patch ]
++ lib.optional stdenv.isDarwin ./at-fdcwd.patch;
patches = [
./clean-env.patch
] ++ lib.optionals stdenv.isDarwin [
./at-fdcwd.patch
# Backport of the fix to
# https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00201.html
# Should be removed when switching to Emacs 26.1
(fetchurl {
url = "https://gist.githubusercontent.com/aaronjensen/f45894ddf431ecbff78b1bcf533d3e6b/raw/6a5cd7f57341aba673234348d8b0d2e776f86719/Emacs-25-OS-X-use-vfork.patch";
sha256 = "1nlsxiaynswqhy99jf4mw9x0sndhwcrwy8713kq1l3xqv9dbrzgj";
})
];
nativeBuildInputs = [ pkgconfig ]
++ lib.optionals srcRepo [ autoconf automake texinfo ]