From f3670095dbbd51fef6aabc6322e715ce7dab4006 Mon Sep 17 00:00:00 2001
From: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
Date: Fri, 6 Aug 2021 22:32:57 +0200
Subject: [PATCH] emacs.pkgs.ada-mode: enforce $NIX_BUILD_CORES

Prevent gprbuild to detect the amount of available cores and enforce user settings.
---
 .../applications/editors/emacs/elisp-packages/elpa-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/applications/editors/emacs/elisp-packages/elpa-packages.nix b/pkgs/applications/editors/emacs/elisp-packages/elpa-packages.nix
index 821960d1338e..59ad28052fae 100644
--- a/pkgs/applications/editors/emacs/elisp-packages/elpa-packages.nix
+++ b/pkgs/applications/editors/emacs/elisp-packages/elpa-packages.nix
@@ -87,7 +87,7 @@ self: let
         ];
 
         preInstall = ''
-          ./build.sh
+          ./build.sh -j$NIX_BUILD_CORES
         '';
 
         postInstall = ''