1 files changed, 6 insertions, 1 deletions
diff --git a/targets.mk b/targets.mk
index a25d070..17cdc6b 100644
--- a/targets.mk
+++ b/targets.mk
@@ -1,7 +1,12 @@
+# What soundfont to use to generate the MIDI file
 SOUNDFONT = $(HOME)/soundfonts/FluidR3GM.sf2
+# Determine how many processors are present
+CPU_CORES=`grep -m1 "cpu cores" /proc/cpuinfo | tr -cd '[:digit:]'`
+# The command to run lilypond
+LILY_CMD = lilypond -ddelete-intermediate-files -djob-count=$(CPU_CORES)
 
 %.midi: %.ly parts/*.ly
-	lilypond $<
+	$(LILY_CMD) $<
 
 %.wav: %.midi
 	fluidsynth -r 48000 -F $@ -l -R no -i -n -a alsa $(SOUNDFONT) $<