From 25a828190b2a08105ad561b5b417bb61a383fc4f Mon Sep 17 00:00:00 2001
From: Francis Rowe <info@gluglug.org.uk>
Date: Thu, 10 Mar 2016 15:18:49 -0500
Subject: build system: allow arbitrary specification of number of cores used

Use NPROC=foo
Replace "foo" with a number. By default, the build system uses $(nproc).
This patch allows the user to specify any number of cores. This is useful
on some systems, or certain chroot environments.
---
(limited to 'resources/scripts/helpers/build/module/bucts')

diff --git a/resources/scripts/helpers/build/module/bucts b/resources/scripts/helpers/build/module/bucts
index 6e54fc1..8e2b371 100755
--- a/resources/scripts/helpers/build/module/bucts
+++ b/resources/scripts/helpers/build/module/bucts
@@ -24,6 +24,17 @@
 
 [ "x${DEBUG+set}" = 'xset' ] && set -v
 set -u -e
+if [ -z ${NPROC+x} ]; then
+    cores="$(nproc)"
+else
+    case ${NPROC} in
+        ''|*[!0-9]*)
+            printf "value '%s' for NPROC is invalid. non-numeric. Exiting.\n" "${NPROC}"
+            exit 1
+            ;;
+    esac
+    cores="${NPROC}"
+fi
 
 # Build BUC.TS utility (needed for flashing ROM images on X60/T60 while Lenovo BIOS is running)
 # --------------------------------------------------------------------
@@ -44,7 +55,7 @@ if [ "${buildtype}" = "static" ]; then
 fi
 
 make clean
-make -j$(nproc)
+make -j${cores}
 
 if [ "${buildtype}" = "static" ]; then
 	patch "Makefile" -R < "../resources/bucts/patch/staticlink.diff"
--
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